0-320-A-E-_PC-203-1

PARTS CATALOG

PC-303-1

19\/CO I~CONIING

0-330 P~ and Series

LO\N C´• ´•NIPRcSSION

Wide Cylinder Flange Model

AIRCRAFT ENGINES

3

4 i:i

~I’"b

(-j

PRICE ~18.00 JULY 1984

Li~IAVCO LYCOMING WILLIAMSPORI DIVISION

652 Oliver Street, Williamsport, Pennsylvania 17701

~AVCO LYCOMING ENGINE GROUP

I 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

INTRODUCTION

This illustrated parts catalog contains a complete parts listing for the Avco Lycoming 0-320 A and E series

low compression wide cylinder flange model aircraft engines.

Major assembly and sub-assembly parts of the engines are listed in the Group Assembly sections in the

general sequence of engine build up.

A Service Kits section and Oversize and Undersize Parts List are included to aid in ordering parts as necessary

during overhaul

The Numerical Index is provided for convenience in finding parts when only the part number is known.

Parts coverage of Vendor Accessories used on Avco Lycoming engines may be found in the appropriate Ven-

dor’s Parts Catalog. A list of these publications appear in the latest edition of Service Letter No. L114.

NOTE

The illustrations, pictures and drawings shown in this publication are typical of the subject matter they por-

tra_v.

This catalog, when used in conjunction with the appropriate overhaul manual shall be used forparts identifica-

tion onE~ Under no circumstances shall this catalog be used as an assembly or installation document.

Any reference in this document to a supplierslparts manufacturers’ product, by name, trademark, part

number or other description is solely for the purposes of identification and does not indicate or infer that Avco

Lycoming accepts respbnsibility for quality control andlor airworthiness of parts which do not pass through the

Avco Lycoming quality control system.

SERVICE BULLETINS, INSTRUCTIONS AND LETTERS

Although the information contained in this parts catalog is up-to-date at time of publication, users are urged to

keep abreast of later information through all Avco Lycoming distributors or from the factory by subscription.

Consult the latest edition of Service Letter No. L114 for subscription information.

HOW TO ORDER PARTS

In ordering parts for your engine, observe the following instructions which will expedite shipment of correct

parts required without delay.

a Always specify the model and serial number of your engine.

b. Always specify Part Number, Nomenclature and quantity required.

~LIAVCO LYCOMING 0-3206 and E SERIES PARTS CATI\LOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

TABLE OF CONTENTS

SECTION PAGE

Introduction’´•´•´•´•´•´•-´•-´•´•-´•´•------´•-´•---´•--´•´•-´•---´•´•´•-´•´•---´•--´•´•-´•-´•´•--´•----´•´•----´•--´•-.......1

Table of Contents--´•-------´•´•´•-´•--´•-´•------´•´•---------------´•------´•-----´•´•´•--´•´•-´•´•-´•-........u

Oversize and Undersize Partsm

I. CRAhTKCASE, CRANKSHAFT AND CAMSHAFT GROUPCrankcase Assembly ´•--......1-1Oil Level Gage Assemblies

-------´•´•---------´•-´•-----´•´•´•-´•-´•---´•´•´•-´•´•´•´•-´•´•--´•´•-´•...........1-3

Crankcase Related Parts ´•´•.......1-5Crankshaft and Related Parts

-----´•----´•´•-´•´•-´•--´•-´•----´•´•---´•´•-´•´•---´•--´•-´•´•-´•´•´•´•´•--........1-7

Camshaft and Related Parts ´•´•........1-9Propeller Governor Drive Assembly ´•´•.--..........1-11Crankshaft Idler Gears

´•´•------´•---------´•´•-´•´•----´•---´•-´•´•-´•-´•´•-´•´•´•´•´•´•´•´•´•-´•--´•´•---.......1-13

Cranbcase Attaching Parts´•--´•-------´•´•---´•---´•´•--´•´•´•-´•-´•´•-´•--´•´•´•´•´•´•´•´•-.-................1-15

2. ACCESSORY HOUSING AND RELATED PARTSAccessory Housing Assembly ´•---´•---´•-´•-´•´•--´•--´•-´•´•´•´•---´•´•-´•´•-´•---´•-´•´•´•----´•´•´•´•´•-.........2-1

Oil Pump Assy. andAccessory HousingAttachingParts 2,3Propeller Governor OilLine

-----´•--´•-´•-´•´•--´•------´•´•--´•-´•--´•---´•´•--´•--´•´•--´•´•---´•´•--........2-5

Propeller Governor Drives and Covers-----------´•-´•---´•´•---´•--´•´•-´•´•´•´•-´•´•--´•´•---´•-...........2-7

Fuel Pump Assembly and AttachingParts 2,9Vacuum Pump Drive and Dual Drive Assembiies

-´•´•----´•´•--´•´•´•´•´•´•--´•´•´•--´•´•--´•´•-.-............2-11

AccessoryDrive Covers .2-13OiiFilterAssembly and Oil CoolerBypassValve 2-14

3. CYLINDER, PISTON AND VALVE TRAIN

ConnectingRods, Pistons andftingAssemblies 3,1Cylinder Assembly --------´•---´•-´•´•---´•----´•--´•-´•--´•´•--´•´•--´•´•´•---´•´•--´•´•---´•--´•............3-3

Valve AssemblyCSlinder Related Parts´•---´•--´•---------------------´•-´•-------´•´•--´•´•´•--´•´•-´•´•´•--............3-7C~´•linderHeadDrainTubes andIntercylinder CoolingBaffles 3,9

4. IGNITION SYSTEM

Magnetos and Magneto Drives----´•---´•---´•------´•-´•---´•´•´•´•---´•´•---´•---´•´•´•-´•----...........4-1

Ignition Harness and Lead Assembly ---´•-----´•----´•--´•´•-´•´•´•´•-´•´•´•--´•´•´•-´•´•-´•´•´•---.............4-3

5. ELECTRICAL COMPONENTSAlternatorAssemblyGenerator Mounting and Attaching P~ts 5,2Alternatorhilountingand AttachingParts 5,4Starter Motor and AttachingParts

-´•---´•-´•´•----------´•-´•-´•---´•´•-´•´•-´•´•´•´•´•´•´•--´•´•´•-...........5-6

6. OIL SUMP AND INDUCTION SYSTEMOil Sump Assembly and Oil Suction Sneen

---´•´•---´•´•----´•´•---´•´•-´•´•-´•--´•´•-´•--´•´•---............6-1

Intabe Pipe Assembly "----------´•----------´•-´•´•--´•--´•-´•~´•-----´•--´•--´•--´•´•-´•-´•...........6-3

Carburetor Assemb~y-----´•-------´•--´•-----´•----´•´•-´•´•´•--´•´•´•´•-´•´•-.---´•--´•-´•´•--..............6-5Priming System

5~. SERVICE KIT SECTION

8. NUhlERICAL INDEX

L7AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSH)N: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Oversize and Undersize Parts Listing

PART NO. DESCRIPTION OVERSIZE UNDERSIZE

W2 W5 P10 P15 P20 P30 P50 M03 M06 M10

.002 .005 .010 .015 .020 .030 .050 .003 .006 .010

60028 GUIDE X X X I X

66145 DOWEL X X

66610 BUSHING X X

66796 INSERT X

69373 BEARING X X X

69796 DOWEL X

72057 SEAT X X X

72058 SEAT X X X

720633 BUSHING X X X X



720668 BUSHING X X X

72067S BUSHING X X X X

73857 RING X X

74230 GUIDE X X X X

74241 RING X

74989 RING X X

LW-10647 DOWEL X X

LW-13792 SEA~ X

L~J-13884 BEARING X X X X

LW-16D47 BEARING SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1377 FOR APPLICATION.

LW-16711 BEARING SEE LATEST EDITION OF SERVICE INSTRUCTION NO. 1377 FOR APPLICATION.

STD-1065 DOWEL X X X X

Studs available in PO3, PO7, P12.

NOTE

When ordering oversize and undersize parts, be sure to specify the required oversize and undersize dimension along with the

proper part number. For example, to order bearing LW-13884 in .003 undersize, order part number LW-13884-M3. Oversize

code letter is "P" while undersize code letter is "M". These letters are then followed by the number designating the size in

thousandths of an inch.

111

SECTION

CRAN KCASE,CRAN KSHAFT AN D

CANISHAFT GROUP

~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOG


CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUP

CRANKCASE ASSEMBLY

FIG.N QUANTITY PER ASSEMBLY

REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE1 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BCDBAFABCDFGHDH

I LW-18369’ CRANKCASE ASSEMBLY I 1 II I I I I I I I I II

LW-18372" CRANKCASE ASSEMBLY II I I II 1 1 1

LW-18379" CRANKCASE ASSEMBLY I I I I I I I i I I II 1 1 1 1

LW-13813~ CRANKCASE ASSEMBLY I i I I I I lli I I I II

LW-138I7’ CRANKCASE ASSEMBLY I I I II

2 75154 STUD, 1/2-13 x 10-1/32 long 2

3 50-15 STUD, 1/2-20 x 1-7/8 long 8

4 3&-13 STUD, 3/8-16 x 1-5/8 long 16

5 380-17 STUD, 3/8-16 x 2-1/8 long, drilled 1

6 LW-13793 STUD, 5/‘16-18 x 15/16 long f

7 310-12 STUD, 5/16-18 x 1-1/2 long 2

8 310-13 STUD, 5/16-18 x 1-5/8 long 1

9 38-22 STUD, 3/8-16 x 2-3/4 long I I I I I 1 111 1 I I II10 STD-557 DOWEL, 1/2 dia. x 19/32 long 2

11 STD-574 DOWEL, 5/16 dia. x 1/2 long 2

12 72158 BUSHING, Governor drive idler shaft I I I I I i 111 I I I II13 69796 DOWEL, Crankshaft bean’ng 2 2 8 2 2 2 2 2 2 2 2

14 ILW-10647 DOWEL, Crankshaft bearing I I I I I 1 141 1 I 1 1415 1702 PLUG, 1/8-27 Nm, Alien 5 5 5 5 5 4 5 5 5 5 4 5 5 5 5

16 1STD-1623 INSERT, 1/4-20 x 3/8 long 2

17 165007 RETAINER, Shroud tube seal 8

18 ISTD-1339 PLUG, 1/16-27 Nm, Alien I I I I I 1 111 1 I I II19 1102 PLUG, 1/8-27 Nm, Alien 1

20 31C-14´• STUD, 5/16-18 x 1-3/4 long I I I I I 1 141 1 I 1 14

Straight conical mounting provision.No. 1 dynafocal mounting provision.Governor drive at front of crankcase and dynafocal mounts.Used for installation of "AN" Governor.

d-I

~AVCO I vr.OMING 0-32D-A and E SERIES PARTS GATALOG


r rr.~

0-\ i

I i

/j cC I

Cr i

C~7CY

15-\ i~n3ai,i i. "e

13

L:

r’"11 ~u .rsI~

(d 4

Ct

~e

1 25\O 7

I

2

12

t2 rJ

r

´•J

i i,78 ,~´•R;´•

3

~\-st B jl

I

7\ Y;:~.;’

Figure 1. CRANKCASE ASSEMBLY

1-2

~AVeO LYCOMING 0-320-A and E SERIES PARTS CATALOG



011 LEVEL GAGE ASSEMBLIES

/FIG.~ N~I IIUANTITY PER ASSEMBLY

/REF.( PART Ai,l, AIAIEIE EIEIEIE EIEIEIEIE2 1 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 212 2 212 21313

L B CID B A F A B C D F G H D H

j 1 175735 i TUBE, Oil level gage, short f /11111111 1 (1( 1 111 (1

175767 TUBE, Oil level gage, Intermediate 1 I1I hill I 1 1111

175736 1 TUBE. Oil level gage, long I 111 1 1111111111/1(1(111) 1111

jlW-15970 TUBE. Oil level gage, short I jill2 178626 TUBE ASSY., Oil level gage, 15-118 long I 1 I I I I I I I 1 111 1 II

3 175767 j TUBE,Olllevelgage I I II i I I 1 ii 111 1 II4 175761 EXTENSION. Oiliilter I i I 1 I I I I I 1 111 1 II

5 172220 i GASKET,Oillevelgage I I I I I I I I I 1 111 1 II

6 L~v-12789 ITUBE ASSY,, Oil level gage, 12-13/16 long I 1 I I I I I I I I I I I 1 1111

7 175767 TUBE, Oil level gage I I I I I I I I 1 I I I I 1 1111

8 177527 i FXTENSION.Oilfilter I I I I I I I I I I I I I 1 1111

9 172220 1 GASKET. Oil level gage 1 f I I I I I I I I I I I 1 1111

70 (72059 i GASKET. Oil level gage I 1

11 174068’ i RING. Oil level gage, seal 1 1111111111111111111111111 1111

174065" 1 RING. Oil level gage, seal I 111 11111 1 I I 1 111 1 IIi 72312~ j RING. Oil seal, 1.00 1.O. x 118 section 1 i i I I I i I I I I I I 1 1111

12 jlW-14759 GAGE ASSY., Oil level 1 11111111( (II 1 111 (1

JLW-14780 GAGE ASSY., Oil level yl 1 II I I II 1

L~V-14758 GAGE ASSY.. Oil level I I1 1 1 1 1 1 1 1 1 1 1 1

’L\lr-14757 GAGE ASSY., Oil level I i I I I I I I I I II

il~V-14768 GAGE ASSY.. Oil level I i I I I I I I I 1 111 1 II

iuy-14735 IGAGE ASSY., Oil level f i I i I I I I I I I I I 1 1111

/LW-14793 I GAGE ASSY., Oil level 1 1111

Used with LW-14759. LW-14758, LW-14757 LW-14793 gage assemblies.

Used with LW-14780 LW-14768 gage assemblies.

Used with LVJ-14735 gage assembly.

1-3

~A1VCO 1 uCOn/ill\le 0-320-A and E SERIES PARTS CATALOG


127

11-~

4.8

i

~--1,3.7

j I

i iI\

r

ii’-; "E~4:I i I

C\ .~I´•], C)

i 2,s t -i3

i-I, II.-"lf

;~i´•1;; ’ri

"3

Figure 2. OIL LEVEL CAGE ASSEMBLIES

1-4

LI~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKOASE MODEL ENGINE


CRANKGASE RELATED PARTS

FIG. N QUANTITY PER ASSEMBLY

REF. PARTA AlAlAlAlElElElElElElEIEIEIEIE

3 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H

1 1028-B BALL, 11116 diameter 1

2 61084 SPRING, Oil pressure relief valve 1

3 STD-425f WASHER, No. 10 plain (Max. 9) AR

4 STD-1045 GASKET, 1-1/4 I.D. x 1-1/2 O.D. x 3/32 annular 1

5 76529 PLUG, Oil relief valve 1

6 77808 VALVEASSY., Oil pressure relief, adjustable I I I I I I I II7 LW-16047* BEARING, Crankshaft 4 4 4 4 4 4 4

LW-I6711*’ BEARING, Crankshaft 4 4 8 4 4 4 4 4 8 8 8 8 8

8 LW-13884 BEARING, Crankshaft, front 2 2 2 2 2 2 2 2 2

9 LW-13792 SEAL, Oil, crankshaft 1

10 72075 SEAL, Oil, 3132 sect. 15/32 i.D. 2

11 72091 RING, Oil seal, 23164 I.D. x 7/64 dia. 2

12 72877 BODY, Hydraulic tappet 8

Used as an alternate to LW-11020 and LW-11021 crankshaft bearings.Thin wall, high crush.

Used only with item no. 5 plug.

15

~eo I vr.OMING 0-3201A and E SERIES PARTS CATALOG

LOW CONIPRESSION: WIDE CYLINDER FU\NGE CRANKCASE MODEL ENGINE

12

tIIc ,qioi

gpB8

lis~

r ‘o aa 10

Ij

B ~4~ih

r,r, 4

B~t:

e~S

Figure 3. CRANKCASE RELATED PARTS

1-6

~AVC=O LYCOMING 0-320-A and E SERIES PARTS CATALOG



CRANKSHAFT AND RELATED PARTS

FIG. N IIUANIITY PER ASSEMBLY

REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE4 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H

I LW-17060 CRANKSHAFT AND PLUG ASSEMBLY 1 1 1 1 1 1

LW-17066 CRANKSHAFT AND PLUG ASSEMBLY 1 1 1

L~-17061 CRANKSHAFT AND PLUG ASSEMBLY 1 1 1

LW-17063 CRANKSHAFTAND PLUG ASSEMBLY 1 1 1

LW-17064 CRANKSHAFT AND PLUG ASSEMBLY 1

LW-17067 CRANKSHAFT AND PLUG ASSEMBLY 1

LW-12446 CRANKSHAFT ASSEMBLY 1

2 STD-IPI1 PLUG, 2.00 dia. expansion 1

3 STD-1065 DOWEL, Stepped 5/16 1/4 dia. x 9/16 long 1

4 72063 BUSHING, Propeller flange 3 3 3 5 5 5 5 3

5 72064 BUSHING, Propeller flange, short 2 2 2 2

6 72065 BUSHING, Propeller ilange 1 1 1 1 1 1 1 1

7 72066 BUSHING, Propeller flange 1 1 1 1 1 1 1 1

8 72067 BUSHING, Propeller ilange 5 5 5 5 5 5 5 5

9 61510 PLUG, 1-314 O.D. 1 1 1 1 1

10 68867 SUPPORT ASSY., Starter ring gear 10/12 pitch, 1.91:1

drive 1 1 1 1 1 1

74414 SUPPORT ASSY., Starter ring gear 12/14 pitch, 1.91:1

drive 1 1 1 1 1 1


drive 1


drive 1


drive 1 1 1 1 1 1

11 60882 GEAR, Starter ring, 10112 pitch 1 1 1 1 1 1 1 1

72566 GEAR. Starter ring, 12114 pitch 1

12 61155 GEAR, Crankshaft 1

13 LW-18639 LOCKPLATE, Crankshaft gear 1

14 ISTD-2213 SCREW, 5/16-24 x 1.00 long 1

1-7

Li~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOG


2

10

iii2

8

12

137,7iSP~ LW-17060

LW-17066

Q

5

4

4 ~3:

LW-17061

LW-17067

LW-12446

LW-17063

LW-1 7064

Figure 4. CRANKSHAFT AND RELATED PARTS

1-8

~nn\ICO ~LYCnNI ING 0-320-A and E SERIES PARTS CAIALOG



CAMSHAFT AND RELATED PARTS

FIG.1 I i I QUANTITY PER ASSEMBLY

REF. PART

5 NUMBER DESCRIPTION AlAlAlAlElElElElElElEIEIEIEIE222311222222233BCDBAFABCDFGHDH

I LW-18837 CAMSHAFT ASSEMBLY 1 1 1 1 1 1 1 1 1 1 1 1 1

LW-18838 CAMSHAFT ASSEMBLY i I I i I 1 111 1 I I II

2 76118 SPACER, Tachometer shaft centering 1

3 76121 SHAFT ASSY., Tachometer 1

4 LW-18667 PIN, 3/16 dia. x 2-21/64 long 1

5 MS16625-1081 RING, Internalretaining 1

1-9

LYCOMING 01320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

Figure 5. CAMSHAFT AND RELATED PARTS

1-10

LZ7AVeO LYCOMING D-320-ll and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPPROPELLER GOVERNOR DRIVE ASSEMBLY

LlG. ON QUANTITY PER ASSEMBLY

REF. PART

NUMBER ADESCRIPTION AIAIAIAIEIEIEIEIEIE IEIEIEIE EL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D 8 A F A B C D F G H D H

1 778751 1

2 LW-14021 SHAFT, Prop. governor idler gear 1 13 77874 GEAR ASSY., Prop. II 14 77872 BUSHING, Prop. governor gear 2 25 sm-19 DOWEL, 3/32 dia.~t/32 long f 16 STD-798 DOWEL, 3/32 dia. x 9/32 long II I I I If7 73249 WASHER, Thrust

73250 IWASHER, Thrust73251 (WASHER, Thrust73252 WASHER, Thrust

8 AN565BID32H5 (SETt 1

9 70455 GASKET, 25/32 I.D. x 1-1/8 O.D~ x 1/16 thick II I II10 ILW-13896 PLUG, 314-16 hex. hd.

II I I I II78589* IPLUG, Prop. governor idler shaft74058^ PLUG, Prop. governor drive pear 1

11 172053 (GASKET~vernorII I I I II

12 172378 COVER, Governor driveII I I I II

73 STD-35"

14 /STD-475 JWASHER, 5116 lock, internal teeth 4 415 STD-1410 NUT, 5/16-18 plain 4) 1 I 14

Governor plugs are used when not employing a propeller governor drive.32 required for Woodward governor; 4 required for "AN" governor.

7-11


LOW COMPRESSION: WIDE OYLINDER FLANGE GRANKCASE MODEL ENGINE

10

´•c\\i"’ a

c

31

~IQ

O O

6!

Figure 6. PROPELLER GOVERNOR DRIVE ASSEMBLY

1-12

O LYCOMI NG 0-320-A and E SERIES PARTS CATALOG



CRANKSHAFT IDLER GEARS


REF. PART A7 NUMBER DESCRIPTION AlAlAlAlElElElElElElEIEIEIEIE

L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BCDBAFABCDFGHDH

1 61544 PLUNGER, Fuel. pump, long 1

2 74996 GEAR ASSY., Crankshaft idler, plain 1

74996 GEAR ASSY., Crankshaft idler, plain 2 2 21 1 1 12 21 1 i 12

3 77309 BUSHING, Crankshaft idler gear I

77309 BUSHING, Crankshaft idler gear 2 2 21 1 1 12 21 1 1 12

4 75072 GEAR ASSY., Crankshaft idler 1

5 77309 BUSHING, Crankshaft idler gear 1

6 LW-13796 SHAFT, Crankshaft idler gear 2

7 STD-2167 SCREW, 5116-‘18 x 7/8 long, hex. hd. dr. 3

8 STD2168 NUT, 5116-18 NC-3 slotted shear I

1-13

~AVCO LYCOMING 0-3201A and E SERIES PARTS CATALOG


I

i’I~I

I

J~ a´• ii%I

a

7 8\3.5147fo\;´•uI

I

I,

jl3!1=~Zi

~i@T

~51

Figure 7. CRANKSHAFT IDLER GEARS

1-14

LYCOMING 0-320-A and E SERIES PARTS ~ATALOG



CRANKCASE ATTACHING PARTS

FIG. N QUANTITY PER ASSEMBLYREF. PART

A AlAlAlAlElElEIEIElElEIEIEIEIE8 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H

1 STD-1414 BOLT, 1/4-20 x 1-1/2 long, hex, hd. 8

2 STD-8 WASHER, 114 plain 19119119119119120 119119119119120119 119119119

3 60803 STRAP. Lifting 1

4 STD-2084 BOLT, 114-20 x 1-3/4 long, hex. hd. 1

5 STD-1419 BOLT, 1/4-20 x 1-1/8 long, hex. hd. 3 3 3 3 3 4 3 3 3 3 4 3 3 3 3

6 STD-160 WASHER, 114 lock, internalteeth 12112112112112113112112112112113112112112112

7 STD-1411 NUT,1ICPOplain 9

8 STD-1416 BOLT, 1/4-20 x 1-1/2 long, hex. hd. dr. end 3

9 STD-8 WASHER, 1/4 plain ~max. 9) AR

IO STD-1409 NUT, 1/4-20 slotted shear 3

11 ISTD-33 WASHER, 3/8 plain 3

12 IAN960-616L WASHER, 3/8 plain (thick) (max. 3) AR

13 ISTD-872 NUT, 3/8-24 slotted 1

14 AN6-34A BOLT, 318-24 x 3-37/64 long, hex. hd. 2 2 2 2 2 1 2 2 2 2 1 2 2 2 2


STD-33 WASHER, 3/8 plain I I I I I I 1 151 1 I I I I 16s16 ISTD-678 WASHER, 318 lock, internal teeth 2

STD-678 WASHER, 3/8 lock, internal teeth I I I I I I I II17 ISTD-596 NUT, 318-24 plain 2

STD-596 NUT, 318-24 plain I I I I I I I IILW-11866’ NUT, Spacer, compressor I I I I I I 1 111 1 I I 1 1122

18 76220 STUD, 112-20 x 10-45/64 long 4

Used on installations to provide for mounting of York freon compressor.

1-15

LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

2,6,7.9 ~-2P.7.9 ,2~6.7. 9 r11,12,13,15

o o oO O

5 .6.7,9

O

4;1 6,17 8

7 .2,6.7.ii ~8,10

Figure 8. CRANKCASE ATTACHING PARTS

1-16

SECTION

ACCESSORY

HOUSING AND

RELATED PARTS

~IIAVCO LYCOCV1ING 0-320-A and E SERIES PARTS CATALOG


ACCESSORY HOUSING AND RELATED PARTS

ACCESSORY HOUSING ASSEMBLY

OQUANTITY PER ASSEMBLYFIG.

REF. PARTA AlAlAlAlElElElElElElEIEIEIEIE9 EIUMBER DESGRIPT(ON L22231122222223 3L BCDBAFABCDFGHDH

1 73818 GASKET, Accessory housing 1

2 76103 HOUSING ASSY., Accessory tone plain, one impulsemag. and AC fuel pump provisions) 1 1 1 1 1 1

76104 HOUSING ASSY., Accessory tone plain, one impulsemag.. AC fuel pump and vac. 8 hyd. drive provisions) 1

76107 HOUSING ASSY., Accessory tone plain, one retard mag.and AC fuel pump provisions) 1

76110 HOUSING ASSY., Accessory tone plain, one impulsemag. and AC fuel pump provisions) 1 1 1 1 1

76111 HOUSING ASSY., Accessory tone plain, one retard mag.and AC fuel pump provisions) 1

76927 HOUSING ASSY., Accessory (machined for vacuum

pump and fuel pump pad; Gov. pad unmachined) 1 1 11

LW-12408 HOUSING ASSY., Accessory (machined for vacuum

pump and fuel pump pad; Gov. pad unmachined) 1

LW-12712 HOUSING ASSY., Accessory tone plain, one impulsemag., machined for vacuum pump and AC fuel pump

drives; Gov. pad unmachined) 1 1

iW-12782 HOUSING ASSY., Accessory (two impulse mags.,

machined for vacuum pump and AC fuel pump drives;Gov. pad unmachined) 1

LW-14416 HOUSING ASSY., Accessory tone plain S4LN-20 and

one impulse S4LN-21 mag., pressure tap on side of

filter pad) 1 1

3 61400 STUD, 1/4-20 x 1-3/16 long 2 2 2 2 2 2 2 2

4 1250-22 STUD, 1 /4-20 x 2-3/4 long 4

5 31C-12 STUD, 5/16-18 x 1-1/2 long 6 8 2 6 6 6 6 6 6 6 6 6 2 6 6

310-12 STUD, 5/16-18 x 1-1/2 long 2 2 2 2

6 310-19 STUD, 5/16-18 x 2-3/8 long 2 2 2 2 2 2 2 2 2 2 2 2 2

310-19 STUD, 5/16-18 x 2-3/8 long 4

7 31CD-17 STUD, 5116-18 x 2-3/16 long, dn’lled 3

8 250-11 STUD, 1/4-20 x 1-3/8 long 1

9 2513-31 STUD, 1/4-20 x 3-7/8 long 3

1D 310-13 STUD, 5/16-18 x 1-5/8 long 2

11 1102 PLUG, 1/8-27 Nm 2

1102 PLUG, 1/8-27 NPT 3 3

12 STD-784 PLUG, 3/8-18 NPT 1 I 1 1 1 1 1 1 1 1 1 1 1

13 73317 TUBE, Accessory breather 1 1 1 1 1 1 1 1

14 76119 SHIELD, Oil, accessory breather 1

15 ISTD-1006 RING, Oil seal, 7/16 I.D. x 3/32 dia. I 1 I 1 1 1 1 1

16 75626 PLUG, 5/8 O.D. x 3/4 long 1 1 1 1 1 1 1 t

2-1


iOW COMPRESSION: WIDE CYLINDER FLANGE GRANKCASE MODEL ENGINE

~P´•Bnj

Is

1

5.6 OC3

C3

\C;~-7 )’g

Is

r12 )19

c\

Figure 9. ACCESSORY HOUSING ASSEMBLY

2-2

LYCOMING 0-320-A and E SERIES PARTS GATALOG



011 PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS

FIG. N IIUANTITY PER ASSEMBLYREF. PART

10 NUMBER DESCRIPTION AlAlAlAlElElElElElElEIEIEIEIEL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B 0 D B A F A B C D F 0 H D H

1 78528 BODY ASSY., Oil pump 1

2 STD-1339 PLUG, 1116-27 NPT, Alien head 1

3 LW-13775 IMPELLER ASSY., Oil pump driven 1

4 61174 SHAFT, Oil pump drive 1

5 60746 IMPELLER, Oil pump driving 1

6 STD-35 WASHER, 5/16 plain 3

7 STD-1420 NUT, 5116-18 slotted 3

8 LW-14260 SEAL, Tachometer drive, oil I

9 STD-8 WASHER, 114 plain 12

10 STD-160 WASHER, 114 lock, internalteeth 12

II ISTD-7204 BOLT, 1/4-20 x 15116 long, hex. hd. 10

12 ISTD-1414 BOLT, 114-20 x 1-1/2 long. hex. hd. 2

2-3


LOW COIYIPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

.1 o~ 1

t~

_L i/: //5,910.125

i j1´•L/

r r"n ire,

3/

i

3

011

f i7c:iai

I I

t

Figure 10. OIL PUMP ASSEMBLY AND ACCESSORY HOUSING ATTACHING PARTS

2-4

1 ur.O[VilNG 0-320-A and E SERIES PARTS CAIALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE ORANKCASE MODEL ENGINE

ACCESSORY NOOSING AND RELATED PARTS

PROPELLER GOVERNOR OIL LINE


REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE11 NUMBER OESI~RIPTION L22231122222223 3L B C D B A F A B C D F G H D H

1 75166’ TUBE ASSY., Prop. governor oil line I I IIL175167*’ TUBE ASSY., Prop. governor oil line i I I 1 11175730" TUBE ASSY., Prop. governor oil line I I I I II

2 STD-1930 HOSE, 3/8 I.D. x 1.00 long I I 1 11113 75165 CUP, Prop. governor oil line support I I 11 1114 STD-35 WASHER, 5/16 plain I I 1 113 3

5 STD-475 WASHER, 5/16 lock, internalteeth I I 1 11116 STD-1838 BOLT, 5/16-18 x 15/16 long, hex. hd. I I I 1 1117 LW-16266-25-38 CLAMP i I 1 1111

8 MS20822-6~t ELBOW, 3/8 flared tube 1/4 Nm, 900 1 i I 1 1119 74070´• ELBOW, 3/8 flared tube 8 9/16-18 str. thd., adj. 450 1 I I 1 111

10 IMS29512-06 RING, "O" I I 1 111111 175739´• NIPPLE, 3/8 flared tube 9/16-18 str. thd. I I I I II12 ]MS29512-06 RING, "O" I I I i II

Used with nipple at gov. drive adapter set-up with generator.Used with 450 elbow at gov. dn’ve adapter set-up with alternator.

1: Assemble in right crankcase, front.Assemble in prop. governor adapter.

2-5

L~AVCO I ur.OMiNG 0-320-A and E SERIES PARTS CATALOG


´•c‘l

~C

mI i\

E~

i 1´•0/

12

Figure 11. PROPELLER GOVERNOR OIL LINE

2-6

L~CO I ur.On/llNG 0-320-A and E SERIES PARTS GATALOG


ACCESSORY HOUSING AND RELATED PARIS

PROPELLER GOVERNOR DRIVES AND COVERS

F1G.N QUANTITY PER ASSEMBLY

REF. PARTA AlAlAlAlElElElElElElEIEIEIEIE12 NUMBER DESGRIPTIONL22231122222223 3L BCDBAFABCDFGHDH

1 68317 SHAFTGEAR, Prop. governor drive 1 1

2 71596 WASHER, Accessory driven gear 1 1

3 STD-122‘1 RING, 13/16 dia. x 27/64 thick, internal retaining I 1

4 68315 GASKET, Accessory drive adapter 1 1

5 75153^ ADAPTER ASSY., Prop. governor drive 1 1

75545" ADAPTER ASSY., Prop. governor drive 1 1

6 1102 PLUG, 118-27 NPT, Alien 1 1

7 31C-16’ STUD, 5116-18 x 2.00 long 4 4

31C-14*’ STUD, 5116-18 x 1-3/4 long 4 4

8 STD-ln4 PIN, 118 dia. x1/4 long 1 1

9 STD-35 WASHER, 5116 plain 4 4

10 ISTD-475 WASHER, 5116 lock, internalteeth 4 4

11 ISTD-1410 NUT, 5116-18 plain 4 4

12 69551 GASKET, Accessory drive adapter 1 1 1 1 1 1 1 1 1

13 72053 GASKET, Governor 1 1

14 169106 COVER, Governor drive adapter pad 1 1 1 1 1 1 1 1 1

15 72378 COVER, Governor drive adapter pad 1 1

16 STD-35-k WASHER, 5116 plain 4 4 4 4 4 4 4 4 4

17 ISTD-475 WASHER, 5/16 took, internalteeth 4 4 4 4 4 4 4 4 4 4 4

18 ISTD-1410 NUT, 5116-18 plain 4 4 4 4 4 4 4 4 4 4 4

19 ISTD-783´• PLUG, 114-18 NPT, Alien hd. 1 1 1 1 1 1 1

Adapter assembly and studs for Woodward governor installations.Adapter assembly and studs for "AN" governor installations.

~t 32 required for Woodward governor, 4 required for "AN" governor.Assemble in right crankcase, front.

2-7

LYCO~1ING 0-320-A and E SERIES PARTS CATALOG


?~eIi, r-::tlhIh127

G´•’-;, y1,’"7

n "7

/-19

181\7cc x

16\71 O j

Figure 72. PROPELLER GOVERNOR DRIVES AND COVERS

2-8

~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE


FUEL PUMP ASSEMBLY AND ATTACHING PARTS

FIG.N QUANIITY PER ASSEMBLY

REF, PARTA AlAlAlAlElElElElElElEIEIEIEIE13 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B C D F G H D H

1 60096 GASKET, Fuel pump 1

2 LW-15472 FUEL PUMP, Low pressure, dual diaphragm (6441271) 1 1 1 1 1 1 1 1 1 1 1 1 1 1

3 STD-33 WASHER, 3/8 plain 2 2 2 2 2 2 2 2 2 2 2 2 2 2

4 STD-1882 SCREW, 318-16 x 1-9/32 long, socket hd.. dr. hd. 2 2 2 2 2 2 2 2 2 2 2 2 2 2

5 65098 COVER, Fuelpump 1 1 1 1 1 1 1 1

6 SJD-33 WASHER, 3/8 plain 2 2 2 2 2 2 2 2

7 LW-38.75 BOLT, 318-16 x 3/4 long, hex. hd. 2 2 2 2 2 2 2 2

8 STD-678 WASHER, Lock 2 2 2 2 2 2 2 2

2-9

Ls~7AVCO LYCO~1ING 0-320-A and E SERIES PARIS CATALOG


ce!r; C,

ki-%

8

1?~3 ~Lr

9

---~i_

~4F

Figure 13. FUEL PUMP ASSEMBLY AND ATTACHING PARTS

2-10

~nA\ICO I V~OIVIING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE GYLINDER FLANGE CRANKCASE MODEL ENGINE


VACUUM PUMP DRIVE AND DUAL DRIVE ASSEMBLIES


REF. PARTA AlAlAlAlElElElElElElEIEIEIEIE14 HUMBER DESCRIPTION L22231122222223 3L B C D B A F A B C D F G H D H

1 61183 GASKET, Accessory adapter 1 1 1 1 1 1 1 1 1 1 1 1 1 1

2 61098 ADAPTER ASSY., Vacuum pump 1 1 1 1 1 1 1 1 1 1 1 1 1 1

3 STD-1774 PIN, 1/8 x 114 long 1 1 1 1 1 1 1 1 1 1 1 1 1 1

4 STD-2217 SEAL. Oil, 7/8 I.D. x 1-1/2 O.D. x 5/16 1 1 1 1 1 1 1 1 1 1 1 1 1 1

5 72970 GEAR ASSY., Vacuum pump driven 1 1 1 1 1 1 1 1 1 1 1 1 1 1

6 77596 WASHER, Accessory driven gear 1 1 1 1 1 1 1 1 1 1 1 1 1 1

7 70347 DUAL DRIVE ASSY.. Vacuum pump hydraulic pump 1

8 69725 ADAPTER ASSY., Dual accessory drive 1

9 61262 STUD, 1/4-20 x 1-17/32 long 1

10 169724 STUD, 114-20 x 3-5/8 long 3

11 166145 DOWEL, 1/4 dia. x1/2 long 2

12 69319 GEAR ASSY., Accessory drive 1

13 171596 WASHER, Accessory driven gear 1

14 STD-2072 RING, "O", Static seal 1

15 69316 GEAR, Dual accessory drive 1

16 69730 GEAR ASSY., Accessory idler 1

17 69731 BUSHING, Accessory idler gear 1

18 71596 WASHER, Accessory driven gear 2

19 73231 GEAR ASSY., Vacuum pump driven 1

20 69720 GASKET, Dual accessory drive adapter cover 1

21 69742 COVER ASSY., Vacuum hydraulic pump drive 1

22 STD-548 SEAL, Oil, 7/8 I.D. x 1-3/8 O.D. x 5/16 1

23 ISTD-2217 SEAL, Oil, 7/8 I.D. x 1-1/2 O.D. x 5/16 1

24 169942 STUD, 1/4-20 x 1-17/32 long 2

25 169722 STUD, 114-20 x 1-15/16 long 1

26 169318 SHAFT, Accessory idler gear 1

27 ISTD-938 DOWEL, 3/32 dia. x 11/32 long 1

28 ISTD-1339 PLUG, 1116-27 NPT, Alien 2


30 ISTD-160 WASHER, 1/4 internal lock 2

3‘1 STD-1411 NUT, 114-20 plain 2

32 STD-8 WASHER. 114 plain 1

33 STD-IBD WASHER, 113 lock, internalteeth 1

34 STD-1411 NUT, 1 14-20 plain 1

35 ISTD-696 WASHER, 17164 1.D. x 1/2 O.D. x1/32 thick

36 71023 BRACE, Dualdrive 1

37 STD-160 WASHER, 1/4 lock, internalteeth 1

38 ISTD-1215 BOLT, 1/4-20 x 1-1/4 long, hex. hd. 1

2-11

L~IAVCO LYCOMING 0-320-A and E SERIES PARTS CATALOG


q b~CIa

i~-r i´•

3

7

17

~433

29~OTS

~i"I

~‘rV\V\-22 ‘O:

sG~:, ~-36’-37

"38

Figure 14. VACUUM PUMP DRIVE AND DUAL DRIVE ASSEMBLIES

2-12

LYCONIING 0-320-A and E SERIES PARTS CATALOG



ACCESSORY DRIVE COVERS

FiG, N QUANTITY PER ASSEMBLY

REF, PARTA AlAlAlAlElElElElElElEIEIEIEIE

15 NUMBER DESCRIPTION L 2 2 2 3 1 f 2 2 2 2 2 2 2 3 3

L B C D B A F A B C D F G H D H

1 8313 1111111111111111(11 1(11 1

2 60430 COVER. Vacuum pump 1

3 68593 SPACER, Vacuum pump stud 1 14141414(41 141414 4 4

74771 ISPACER, Vacuum hydraulic dual drive stud 1 (3

4 STD-8 WASHER, 1/4 plain 1 4

5 SJD-180 (WASHER, 1/4 lock, internalteeth 1 4

6 STD-1311 NUT. 1/4-20 plain 1 4

7 8313 GASKET, Vacuum and hydraulic pump I I I 1 12

8 60430 1COVER, Vacuum and hydraulic pump I I I 1 (2

9 STD-8 WASHER, 1/4 plain I I I 1 18

10 STD-180 WASHER, 114 lock, internalteeth I I I 1 1811 ISTD-1411 NUI. 114-20 plain I I I 1 18

s~ g\O

j

~29\

a3 )1~

o

oo

I!

j

3

.9

5,10

6,11

Figure 15, ACCESSORY DRIVE COVERS

2-13

L~VCO LYCONIING 0-320-A and E SERIES PARTS CATALOG



OIL FI1TER ASSEMBLY AND OIL COOLER BYPASS VALVE

FIG. QUANTITY PER ASSEMBLY

REF. PART

16 NUMBER DESCRIPTION AlAlAlAlElElElElElElEIEIEIEIE222311222222233BCDBAFABGDFGHDH

‘1 69436’ SPRING, Oil cooler bypass 1 I 1 1

2 62415* PLUNGER, Oil cooler bypass 1 1 1 1

3 STD-294 GASKET, 7/8 O.D. x 5/8 I.D. x 3/32 annular 1

4 62417 PLUG, Oil cooler bypass 1 1 1 1 1 1 1 1 1

5 STD-784 PLUG, 318 pipe 1

6 69675 CONNECTOR, Accessory housing to oil cooler inlet hose 1 1 1 1 1 1 1 1 1 1 1 1

7 71140 FITTING, Breather (assemble in accessory housing) 1 1 1 I 1 1 1 1 1

8 AN844-10D ELBOW, Breather, 450 (assemble in accessory housing) 1 1 1 1

9 71623 WASHER, Oil cooler fitting 1 1 1 1 1 1

10 IAN777-8D ELBOW, Universal, 750 1 1 1 1 1 1

11 AN9D1-8A GASKET, Metal tube connection seal 1 1 1 1 1 1

12 71620 BOLT, Oil cooler fitting 1 1 1 1 1 1

13 72413 FITTING, Breather, 1200 elbow (assemble in ace. hsg.) 1 1 1 1 1 1

14 62732 CAP, Tachometer drive (assemble in ace. hsg.) 1 1

15 AN816-8 NIPPLE, 112 flared tube, 3/8 NPT 2

16 62817 SCREEN ASSY., Oil pressure 1

17 161173 GASKET, Oil pressure housing 1

18 168974 HOUS1NG, Oil pressure screen 1 1 1 1

19 162815 HOUSING, Oil pressure screen 1

20 169510’* HOUSING, Thermostatic valve and pressure screen 1

21 STD-294 GASKET, 7/8 O.D. x 5/8 1.D. x 3/32 annular 1

22 ISTD-8 WASHER, 114 plain 4

STD-8 WASHER, 114 plain 3

23 ISTD-1856 SCREW, 1/4-20 x 31/32 to 1.00 long, hex, hd. slotted 4

STD-1856 SCREW, 114-20 x 31/32 to 1.00 long, hex. hd. slotted 3

24 STD-294 GASKET, 718 O.D. x 5/8 1.D. x 3/32 annular 2

25 LW-~2m5 GASKET, Oil filter adapter 2 2 2 2 2

26 77852 OIL FILTER BASE ASSY. I 1 1 1 1

27 77853 O1L FILTER HOUSING ASSY. 1 1 1 1

28 LW-13215 FILTER, Oil, short (spin on) 1 1 1

29 STD-8 WASHER, 114 plain 4 4 4 4 4

30 STD-IBD WASHER, 114 Iock, internalteeth 1 1 1 1 1

31 STD-1411 NUT, 1/4-20 plain 1 1 1 1 1

32 STD-1856 SCREW, 114-20 x 31/32 to 1.00 long, hex, hd. slotted 3 3 3 3 3

33 75944 VALVE ASSY., Temp. control, oil cooler bypass 1

34 76510 GASKET, Valve assembly 1

35 250-10 STUD, 114-20 x 1-1/4 long 1 1 1 1 1

Not required when thermostatic bypass valve is used.Provision for thermostatic valve in oil screen housing.

2-14

O LYCOM ING 0-320-A and E SERIES PARTS CATALOG


T E\ rll

8 13 7 6 3 w

j I//rior

"7 ’’i

18;19.2"725-~

r

c~.m

o ’~"Do

27 1/-16f4

C~SiLi

52~1:1 34

33

if

Figure 16. O1L FILTER ASSEMBLY AND OIL COOLER BYPASS VALVE

2-15

SECTION

CYLINDER, PISTON

AND VALVE TRAIN

LYCOIV1ING 0-320-A and E SERIES PARTS CATALOG


CYLINDER, PISTON AND VALVE TRAIN

CONNECTING RODS, PISTONS AND RING ASSEMBLIES

FIG. 1 I I I QUANTITY PER ASSEMBLYREF. PART

17 NUMBER DESCRIPTION AIAIAIAIEIEIEIEIEIEIEIEIEIEIE222311222222233BCDBAFABCDFGHDH

1 78030 ROD ASSY., Connecting 4

2 LW-13923 BUSHING, Connecting rod, upper 4

3 78027 BOLT, Connecting rod 8

4 LW-12186 NUT, Connecting rod 8

5 69373 BEARING, Connecting rod 8

6 75413 PISTON, Compression ratio 7.00:1 4

75089 PISTON, Compression ratio 8.50:1 4

7 LW-14068 PIN, Piston (49/64" I.D.) See Note 4

LW-14077 PIN, Piston (9/16" I.D.) See Note I I I I I I 1 (4LW-14078 PIN, Piston (37/64" I.D.) See Note 4

8 60828 PLUG, Piston pin 8

LW-11775 PLUG, Piston pin (piloted in piston pin) 8 8 8 8

9 74989’ RING, Piston, compression 8

74241*’ RING, Piston, compression 8 8 8 8 88

10 73857 RING, Piston, oil regulating (expander type) 4

Chrome ring for plain cylinders.Chrome ring for nitrided cylinders.

NOTE

Refer to latest Service Instruction No. 1267 for piston pin and

plug usage.

3-1

LYCONIINr= 0-320-A and E SERIES PARIS CATALOG

LOW CONIPRESSION: WIDE CYLINDER FLANGE GRANKCASE MODEL ENGINE

0:

Figure 17. CONNECTING RODS, PISTONS AND RING ASSEMBLIES

3-2

~A1VCO I ur,OlV1ING 0-320-A and E SERIES PARTS CATALOG



CYLINDER ASSEMBLY

FIG. 1 I QUANTITY PER ASSEMBLYREF. PART


1 LW-12416 ICYLINDER AND HEAD ASSY., Nitrided I I I I I I 1 14 4

LW-12417 CYLINDER AND HEAD ASSY., Plain 4

2 72(357 SEAT, Intake valve 4

3 72058 SEAT, Exhaust valve 4

4 60028 GUIDE, Valve intake 4

5 74230 GUIDE, Valve exhaust 4

6 66796 INSERT, Spark plug (18-1.5mm) 8

7 STD-1872 INSERT, 1/8-27 hell-coil, taper pipe thread 8 8 8 8 8

8 310-12 STUD, 5116-18 x 1-1/2 long 8

9 250-9 STUD, 1/4-20 x 1-1/8 long 4

10 IMS20823-6D ELBOW, 45", 3/8 flared tube 4

11 166610 BUSHING, Rocker shaft 16

12 1102’ PLUG, 118-27 NPT, Alien head 4 4 4 4 4 4 4 4 4 4 4 4 4 4

Used on installations with no injector or priming system.

3-3

L~IAVCO I vr.OMING 0-320-A and E SERIES PARTS CATALOG


i

i~´•

BY~ii ~i

i

Figure 1B. CYLINDER ASSEMBLY

3-4

I U~OIVIING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE GYLINDER FLANGE CRANKGASE MODEL ENGINE


VALVE ASSEMBLY

FIG. I I I I QUANTITY PER ASSEMBLY

REF. PART

19 NUMBER DESCRIPTION AIAIAIAIEIEIEIEIEIEIEIEIEIEIE222311222222233BCDBAFABCDFGHDH

1 73938 VALVE, Intake 4

2 LW-ISOD1 VALVE, Exhaust (rotator type) 4

3 LW-11795 SPRING, Valve, inner 8

4 LW-118DD SPRING, Valve, outer 8

5 65441 SEAT, Valve spring, lower intake 4

6 LW-13323 SEAT, Valve spring, lower exhaust 4

7 LW-10077 SEAT, Valve spring, upper intake 4

8 LW-16475 SEAT, Valve spring, upper exhaust (rotator type) 4

9 60009 KEY, Valve, intake 8

ID IMS13997-3 KEY, Valve, exhaust (rotator type) 8

11 IMS13998-3 CAP, Valve stem, exhaust (rotator type) 4

12 78290 PLUNGER ASSY., Hydraulic tappet 8

13 78524 SOCKET, Push rod, hydraulic tappet 8

14 168987 TUBE, Push rod shroud 8

15 LW-14995 SPRING, Shroud tube 4

16 LW-12272 LOCKPLATE, Shroud tube 4

17 STD-1411 NUT, 114-20 plain 4

18 162922 SEAL, Shroud tube 8

19 170310 SEAL, Shroud tube 8

3-5

LYCONIIN~ 0-320-A and E SERIES PARTS CATALOG


~P, ~13yls ~8´•

r´•

O,L

iy1 5o

fjII~II/C ai,

iiiI:"

4

o

a~d/

Figure 19. VALVE ASSEMBLY

3-6

~MAVCO LYCOMING 0-320-A and E SER1ES PARTS CATALOG



CYLINDER RELATED PARTS

FIG. I I I I QUANTITY PER ASSEMBLY

REF. PART


1 73411* ROD ASSY., Push AR

73412* ROD ASSY., Push AR

73413’ ROD ASSY., Push AR

73414’ ROD ASSY., Push AR

2 LW-18790 ROCKER ASSY., Valve, intake 4

3 74637 BUSHING, Valve rocker, intake 4

4 74636 ROCKER ASSY., Valve, exhaust 4

5 74637 BUSHING, Valve rocker, exhaust 4

6 LW-1379D SHAFT, Valve rocker 4

7 LW-12892 THRUST BUTTON, Rocker shaft 8

8 75906 GASKET, Cover, rocker box 4

9 61247 COVER, Rocker box 4

10 STD-1925 SCREW, 1 14-20 x 5/8 long, pan hd., self locking 24

11 71481 RING, Oil seal, 3/32 x 4-27/32 I.D. 4

12 74887 SPACER, 33/64 1.D. x 7/8 O.D. x 3/8 thick 2

13 1383-B NUT, 318-24 plain 16

14 ISTD-209D NUT, 112-20 plain 18

15 65321 GASKET, Exhaust flange, copper/asbestos 4

77611 GASKET, Exhaust flange, stainless I I I I I I I I I I I I I 1 14475118 GASKET, Exhaust flange, copper 8

16 61260 FLANGE, Exhaust, stainless 4 4 4 4 4 4 4 4 4 4 4

61259 FLANGE, Exhaust, carbon 4

17 STD-35 IWASHER, 5116 plain 8

18 S’TD-475 WASHER, 5/16 lock, internalteeth 8

19 ISTD-1410 NUT, 5/16-18 plain 1 8

A total of 8 sequired.

3-7

~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESS(ON: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

I/

74

13

‘ca

,i i, i’´• ~O

24´•´•´•:~I

i ij i i fIIII1!!’!!’!11;*/

~i/ijiii i If W

jli /I!j c,

I

,J~e

5

Figure 20. CILINDER RELATED PARTS

3-8

/i’nA\ICO LYCONIINr= 0-320-A and E SERIES PARTS CATALOG



CYLINDER HEAD DRAIN IUBES AND INTERCYLINDER COOLING BAFFLES

FfG,( I I I QUANTITY PER ASSEMBLY

REF. PART

21 NUMBER DESCRIPIION AlAlAlAlElElElElElElEIEIEIEIE222311222222233BCDBAFABCDFGHDH

1 Sfi)-684 NIPPLE, Straight, 3/8 I.D. hose 4

2 STD-2180 HOSE, 3/8 I.D. x 1-13/16 long 4

3 LW-15592-5-05 CLAMP, Hose 8

4 68759 TUBE ASSY., Oil drain, cylinder no. 1 1

5 68760 TUBE ASSY., Oil drain, cylinder no. 2 1

6 68761 TUBE ASSY., Oil drain, cylinders no. 3 8 4 2

7 72569 BAFFLE ASSY., Intercylinder 2

8 71611 RETAINER, Intercylinder 1 2

9 71610 HOOK, Intercyiinder baffle retainer 1 2

/c

PI //iai~rc~

U

iljGiB.

II’(I3"i- s

iIIli((//

CI! IjI r; imS~3 Il d,riiiI I II /1

,5.6

rI:iili

Figure 21, CYLINDER HEAD DRAIN TUBES AND INTERCYLINDER COOLING BAFFLES

3-9

SECTION

IGNITION SYSTEIVI

LYCI IIVIING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE GYLINDER FLANGE CRANKCASE MODEL ENGINE

IGNITION SYSTEM

MAGNETOS AND MAGNETO DRIVES

FfG. QUANTITY PER ASSEMBLYREF. PART

22 NUMBER DESCRIPTION AlAlAlAlElElElElElElEIEIEIEIE222311222222233BCDBAFABCDFGHDN

1 61665 GEAR, Magneto, impulse coupling 1 I 1 1 1 1 1 1 1 1 1 1 1

61665 GEAR, Magneto, impulse coupling 2

2 72495 GEAR, Magneto, retard breaker 1 1

3 STD-761 PIN, Cotter, 3/32 dia. x 1.0e long 1 1 1 1

STD-761 PIN, Cotter, 3/32 dia. x 1.00 long 2

4 161163 GEAR, Magneto 1

5 62224 GASKET, Magneto adapter and magneto 3 2 1 3 3 1 3 2 1 1 1 1 3 1 3

62224 GASKET, Magneto adapter and magneto 2

6 LW-12706 ADAPTER, Magneto, impulse coupling 1 2 1 I 1 1 1 1 1 1 1 1 1

7 LW-12681 GASKET, Magneto 2 2 2 2 2 2 2

8 LW-51360-29 MAGNETO, S4LN-20 I 1 1 1 1 1

LW-51360-37 MAGNETC, Impulse coupling, S4LN-21 1 1 1 1 1 1

LW-163045-3 MAGNETO, S4LN-204 1 1 1

LW-163005-2 MAGNETO, Retard breaker, S4LN-200 1 1

LW-349305-1 MAGNETO, S4LN-1209 1 1 1

LW-349365-3 MAGNETO, Impulse coupling, S4LN-1227 1 1 1

LW-163045-6 MAGNETO, w/Electric tach. pickup, S4LN-204 1 1

LW-51360-45 MAGNETO, Impulse coupling/feed thru cap., S4LN-21 t

9 LW-15635 MAGNETO AND HARNESS ASSY., Right (Slick) 1 1 1 1

10 LW-15636_ MAGNETO, Right, Slick model 4250 1 1 1 117 77743 HARNESS ASSY., Ignition, right 1 1 1 1

12 tW-15637 MAGNETO AND HARNESS ASSY., Left (Slick) 1 1 1 1

13 ILW-15638 MAGNETO, Left, (Slick model 4251, impulse coupling) 1 1 1 1

14 177745 HARNESS ASSY., Ignition, left 1 1 1 115 ILW-16591 MAGNETO AND HARNESS ASSY., Right (Slick) 1

16 LW-15638 MAGNETO, Right(Slick model 4251, impulse coupling) 1

17 77743 HARNESS ASSY., Ignition, right 1

18 175965 CLAMP, Magneto 4 4 4

76961 CLAMP, Magneto 4 4 4 419 STD-1727 WASHER, Plain, 3/4 O.D. x 21/64 I.D. x 1/8 thick 4 4 4 4 4 4 4 4 4 4 4 4

20 STD-475 WASHER, 5/16 lock, internalteeth 4

21 ISTD-1410 NUT, 5/16-18 plain 4

22 176734 STRAP, Zip 8 8 8 823 ILW-14057 CLIP, 1 wire 2 2 2 224 ILW-14060 CLIP, 2 wire 3 3 3 325 l1W-52305-1 KIT ASSY., Magneto ground terminal 2 2 2 2 2 2

LW-52305-1 KIT ASSY., Magneto ground terminal 1

LW-157209 KIT ASSY., Magneto ground terminal 1 2 2 2

26 tW-157208 KIT ASSY., Magneto retard terminal 1 127 11182-83* SPARK PLUG, Champion (REM-40E) 8

1182-87* SPARK PLUG, Champion (REM378Y) 8

1182-F3’ SPARK PLUG, AC (38-88) 8

1182-05’ SPARK PLUG, AC (SR-93) 8

1182-U4’ SPARK PLUG, Auto-Lite (SH-15) 8

Item No. 27 spark plugs are used in current production only. Additional spark plugs are available for these engines. See latest edition ofAvco Lycoming Service Instruction No. 1042 for complete listing of all approved spark plugs.

4-1

O LYCn~IINc 0-320-A and E SERIES PARTS CATALOG


"c~Ii´•

14

1

/´•9~

´•C’7,1"7

i,

jii\

15eu

0,16

27

11.17

Figure 22. MAGNETOS AND MAGNETO DRIVES

4-2

i vr,OlV1ING 0-320-A and E SERIES PARTS CATALOG


IGNITION SYSTEM

IGNITION HARNESS AND LEAD ASSEMBLY


REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE23 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L B C D B A F A B G D F G H D H

1 ~W-M-2403 HARNESS ASSY., Magneto (left) 1 1 1 1 1 1 1 1

~W-M-2415 HARNESS ASSY., Magneto (left) 1 1 1

LW-M-2404 HARNESS ASSY., Magneto (right) 1 1 1 1 1 1 1 1

LW-M-2416 HARNESS ASSY., Magneto (right) 1 1 1

2 LW-M-2375 PLATE, Spark plug cable 2 2 2 2 2 2 2 2 2 2 2

3 72351 SCREW, No. 10-32 self-locking 8 8 8 8 8 8 8 8

4 LW-14060 CLIP, Two wire for 1/4 screw 2 2 2 2 2 2 2 2 2 2 2

5 LW-14057 CLIP, One wire for 1/4 screw 2 2 2

6 LW-16266-25-50 CLAMP 1 1 1

7 STD-8 WASHER, 1/4 plain 2 2 2 2 8 2 2 8 8 2 2

8 STD-160 WASHER, 1/4 lock, internalteeth 2 2 2 2 2 2 2 2

9 AN50D-416-18 SCREW, 114-20 x 1-1/8 long, fillister head I 1 1 1 1 1 1 1

10 STD-1874 SCREW, 1/4-20 self-locking 4 4 4

11 ISTD-1215 SCREW, 1/4-20 x 1-1/4 long 1 1 1 1 1 1 1 1

12 ISTD-1411 NUT, 114-20 plain 2 2 2 2 2 2 2 2

13 ]STD-696 WASHER, 1/4 plain14 71910 CLAMP, 1-3/4 ].D. 4 4 4 4 4

15 llW-18959-150-251 CLAMP, 1-1/2 I.D. 4 4 4 4

16 ISTD-553 SCREW, 6/32 x112 long, rd. hd. 4 4 4 4 4 4 4 4

17 AN365-632A NUT, 6132 self-locking 4 4 4 4 4 4 4 4

18 76734 ZIP STRAP 2 2 2 2 6 2 2 6 6 2 2

lM-1985-48 LEAD ASSY., Replacement top bottom leads

(LW-M-2403 LW-M-2404 harnesses)lM-7985-48 LEAD ASSY., Replacement top 8 bottom leads except for

1T 2T (LW-M-2415 LW-M-2416 harnesses)1131-1985-72 LEAD ASSY., Replacement for 1T 2T leads

(LW-M-2415 LW-M-2416 harnesses)176923-48370-63 LEAD ASSY., Replacement, top and bottom leads

(78539 harness)176923-48390-63 LEAD ASSY., Replacement, top leads (78540 harness)176923-48370-63 LEAD ASSY., Replacement, bottom leads (78540 harness)110-720632-48 LEAD ASSY., Replacement, top bottom leads

(LW-720505-1 harness)176923-72590-63 LEAD ASSY., Replacement for 1T 2T leads (78546

harness)176923-48390-63 LEAD ASSY., Replacement for 3T 4T leads (78546

harness)176923-48870-63 LEAD ASSY., Replacement, bottom leads (78546

harness)176923-72390-63 LEAD ASSY., Replacement, top leads (LW-10177 harness)176923-48870-63 LEAD ASSY., Replacement, bottom leads (LW-10177

harness)

Replacement lead assemblies have spark plug terminal end assembled and are shipped with necessary parts to complete magneto end

assembly after being cut to proper length.

4-3

L~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOG


:ra~ o

J´•/c~ 3

4,151

’187

I´•il

8I

~912-

o

Figure 23. IGNITION HARNESS AND LEAD ASSY. (SL1CK)

4-4

SECTION

ELECTRICAL

CONIPONENTS

L~AVeO I VnOMING 0-320-A and E SERIES PARTS CATALOG


ELECTRICAL COMPONENTS

ALTERNATOR ASSEMBLY

FIG. I I I QUANTITY PER ASSEMBLY

REF. PARTAlAlAlAlElElElElElElEIEIEIEIE

24 NUMBER DESCRIPTION2 2 2 3 1 1 2 2 2 2 2 2 2 3 3

BGDBAFABCDFGHDH

1 78308’ IALTERNATOR, 12 volt 40 arnp (ALE-8406) I 11( 111111(1/11 111 11

LW-14316’ IALTERNATOR, 12 volt 70 arnp (ALX-8421) I I I I I I I II

LW-14319* ALTERNATOR, 24 volt 50 arnp (ALT-8421) I I I I 1 111 11

LW-14308’ ALTERNATOR, 24 volt 60 arnp (ALY-8420) 1 11(111(11111111 11111 11 1

76496 IALTERNATOR, 12 volt 40 amp (ALE-8105A) 1 111 1 I I I I I II

2 60886 BELT, Generator drive 1 I 1 1 1

7S026 BELT, Alternator drive I 1 1111 ii II II II II II II II II 1 1

Externally grounded, 3.25:1 ratio.

’7 i

´•ts

iiA

I

’:1

wa’?!ii

-,s~

Figure 24. ALTERNATOR ASSEMBLY

5-1

~A1VCO LYCONIING 0-320-A and E SERIES PARTS CATALOG



GENERATOR MOUNTING AND ATTACHING PARIS

FIO, I I I I QUANTITY PER ASSEMBLY

REF. PART


1 70419 BRACKET, Generator 2 2 2 2 2

2 73383 LOCKPLATE, 5/16 bolt x 1.00 spacing 2 2 2 2 2

3 STD-1838 BOLT, 5116-18 x 15/16 long, hex. hd. 4 4 4 4 4

4 76028 LINK, Generator adjusting 1 1 I 1 1

5 SiD-35 WASHER, 5/16 plain 1 1 1 1 1

6 LW-31H.75 BOLT, 5/16-18 x 3/4 long, hex. hd. dr. 1 I 1 1 1

7 SiD-1727 WASHER, Plain, 3/4 O.D. x 11/32 I.D. x1/8 thick 1 I 1 1 1

8 LW-31H.75 BOLT, 5116-18 x 3/4 long, hex. hd. dr. 1 1 t 1 1

9 STD-1851 BOLT, 5/16-18 x 1-5/32 long, dr. end 2 2 2 2 2

STD-1836’ BOLT, 5116-18 x 1-29/32 long, hex. dr. end 1

STD-1837’ BOLT, 5116-18 x 2-9/32 long, hex. dr. end 1

10 STO-35 WASHER, 5/16 plain11 STD-1420 NUT, 5/16-18 slotted 2 2 2 2 2

72 STD-68 PIN, Cotter, 1/16 dia. x 1/2 long 2 2 2 2 2

Special bolts for Piper installations.

5-2

LYCOMING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE ~YLINDER FLANGE CRANKCASE MODEL ENGINE

e~Q

’L

/I/

1211aio

2

10i

8

Figure 25. GENERATOR MOUNTING AND ATTACHING PARTS

5-3

~7AVCO LYCOMING 0-320-11 and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE GYLINDER FLANGE CRANKCASE MODEL ENGINE


ALTERNATOR MOUNTING AND ATTACHING PARTS

FIG. QUANTITY PER ASSEMBLYREF. PART

26 NUMBER DESCRIPT(ON AlAlAlAlElElElElElElEIEIEIEJE222311222222233BCDBAFABGDFGHDH

1 74324 BRACKET, Alternator 1 1 1

LW-I 3039’ BRACKET, Alternator 1 1 1 1 1 1 1 1 1 1 1 1 1

76906** BRACKET, Alternator 1 1 1 1 12 73383 LOCKPLATE, 5116 bolt x 1.00 spacing 1

3 LW-I3365 BRACE, Alternator bracket I 14 STD-475 WASHER, 5/16 lock, internalteeth 1 15 STD-1838 BOLT, 5116-18 x 15/16 long 2 2 2 2 2 2 2 2 2 2 2 2 2 3 38 74325 LINK, Alternator adjusting 1 1 1

75380 LINK, Alternator adjusting 1 1 1 1 1 1 1 1 1 1 1 1 1LW-10729*’ LINK, Alternator adjusting f I 1 1 1


8 LW-31H.75 BOLT, 5116-18 x 3/4 long, hex. hd dr. I 1 1 1 1 1 1 1 1 1 1 1 1STD-1858 BOLT, 5/16-18 x 29/32 long, hex. hd. dr. 1 1 1 1 1 1 11

9 STI)-1727 WASHER, Plain, 3/4 O.D. x 11/32 I.D. x1/8 thick 1 1 1 1 1 1 1 1 1 1 1 1 1 110 LW-31H.75 BOLT, 5116-18 x 3/4 long, hex. hd. dr. 1 1 1 1 1 1 1 1 1 1 1 1 1 111 74323 STRUT, Alternator support 1 1 1 1 1 1 1 1 1 1 1 1 1 1

76908*’ STRUT, Alternator support 1 1 1 1 112 ILW-3IH.75 BOLT, 5116-18 x 3/4 long, hex. hd. dr. 1 1 1 1 1 1 1 1 1 1 1 1 1 1

STD-1858 BOLT, 5/16-18 x 29/32 long, hex. hd. dr. 1 1 1 1 113 STD-690 WASHER, 13/16 O.D. x 25/64 I.D. x 1/16 thick 1 1 1 1 1 1 I 1 1 1 1 1 1 114 IAN6-32 BOLT, 318-24 x 3-21/64 long, hex, hd. dr. end 1 1 1

AN6-14 BOLT, 318-24 x 1-37/64 long, hex. hd. dr. end 1 1 1 1 1 1 1 1 1 1 1 1 115 ISTD-690 WASHER, 13/16 O.D. x 25/64 1.D. x 1/16 thick

16 ISTD-872 NUT, 318-24 slotted 1 1 1 1 1 1 1 1 1 1 1 1 1 117 ISTD-713 PIN, Cotter, 3/32 dia. x 3/4 long 1 1 1 1 1 1 1 1 1 1 1 1 1 118 AN6-13 BOLT, 318-24 x 1-7/16 long, hex, hd. dr. end 1 1 1 1 1 1 1 1 1 1 1 1 1

AN6-16 BOLT, 318-24 x 53/64 long, hex. hd. dr. end 1 119 176534 SHIM, 1-1/8 O.D. x 13/32 I.D. x1/64 thick

20 ISTD-690 WASHER, 13/16 O.D. x 25/64 1.D. x 1/16 thick

21 1STD-872 NUT, 318-24 slotted 1 1 1 1 1 1 1 1 1 1 1 1 122 STD-713 PIN, Cotter, 3/32 die. x 3/4 long 1 1 1 1 f 1 1 1 1 1 1 1 1

Used on Prestolite installations.Used on Cessna and Beech installations.

5-4

~IIAVCO LYCOIVIING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE GRANKCASE MODEL ENGINE

,I

\-70

i1

~12

ai jjs~

’7

f’a~

3--/

Figure 26. ALTERNATOR MOUNTING AND ATTACHING PARTS

5-5

~AVCO LYCOMING 0320-A and E SERIES PARTS CATALOG



STARTER MOTOR AND ATTACHING PARTS

FIG. NQUANTITY PER ASSEMBLY

REf. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE27 NUMBER DESCRIPTIONL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BCDBAFABCDFGHDH

1 76210’ STARTER, 12 volt (00 reduction) 10/12 pitch pinion

(M2-42043 1 1 1 1 1 II I I I I II 1

LW-15571 STARTER. 12 volt, 3.38:1 internal reduction, 12/14 pitch

pinion (M2-4222) 1

LW-15572 STARTER. 24 volt. 3.38:1 internal reduction, 12/14

pitch pinion (MHB-4016) I I I 1 111 1 1

LW-16460 STARTER. 12 volt. 3.38:1 internal reduction. 12/14

pitch pinion (162-42243 1 1

2 STD-35 WASHER. 5/16 plain 4

3 STD-475 WASHER. 5/16 lock, internal teeth 4

4 LW-31-1.09" BOLT. 5/16-18 x 1-3/32 long, hex. hd. 1 1 1 1 1 II I I I 1 111

STD-2~56 BOLT. 5/16-‘18 x 1-5/32 long, hex. hd. 1

5 STD-1410 NUT, 5/16-18 plain 3

Do not use with 2.50:1 or 3.25:1 generator drive.Used with 76210 starter.

56

~7PIVCO LYCONIINr= 0-320-A and E SERIES PARTS CATALOG


J;3

%I ~i

i/

laoil

o

O

o~

eE~P

1~ 3--/

5-/

Figure 27. STARTER MOTOR AND ATTACHING PARTS

5-7

SECTION

OIL SUNIP AND

INDUCTION SYSTENI

LjSIAVCO LY~OMING 0-320-A and E SERIES PARTS CATALOG

tOW COMPRESSION: WIDE ZYLINDER FLANGE CRANKCASE MODEL ENGINE

O1L SUMP AND INDUCTION SYSTEM

011 SUMP ASSEMBLY AND OIL SUCTION SCREEN


REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE28 NUMBER DESCRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BGDBAFABCDFGHDH

1 LW-13353 GASKET, Oil sump 1

2 72362 SUMP ASSEMBLY, Oil I 1 1 I 1

LW-10828 SUMP ASSEMBLY, Oil 1 1 1 1 1 1 1 1 1 1 1

3 61376 CONNECTION, Intake pipe, front 2 2 2 2 2

61377 CONNECTION, Intake pipe, rear 2 2 2 2 2

4 78914 CONNECTION, Intake pipe 4 4 4 4 4 4 4 4 4 4 4

5 310-15 STUD, 5/16-18 x 1-7/8 long 4

6 61400 STUD, 1/4-20 x 1-3/16 long 4 4 4 4 4 4 4 4 4 4 4

J STD-SI PLUG, 1/2-14 Nm, Alien 4 4 4 4 4 4 4 4 4 4 4

8 STD-551 PLUG, 1/2-14 Nm, So. hd. drilled 1 I 1 1 1

STD-551 PLUG, 112-14 Nm, So. hd. drilled 2 2 2 2 2 2 2 2 2 2 2


STD-8 WASHER, 1/4 plain 28 28128128 28128128 28

10 ISTD-IBD WASHER, 1/4 lock, internal teeth 20

11 lSTD1204 BOLT, 1 14-20 x 15/16 long, hex. hd. 16 16116 16

STD1204 BOLT, 1/4-20 x 15/16 long, hex. hd. 14 14114114 14114 14 14

12 ISTD-1419 BOLT, 1 14-20 x 1-1/8 long, hex, hd. 2

13 STD-1411 NUT, 114-20 plain 14 14114 14

STD-I411 NUT, 1/4-20 plain 12 12112112 12112112 12112112

74 160820 GASKET, Oil suction tube flange 1 1 1 1

15 61381 TUBE ASSY., Oil suction 1 1 1 f

16 STD-1227 WASHER, 114 plain (copper) 2 2 2 2

17 STD-1433 BOLT,‘1 14-20 x 1-1/2 long, hex. hd. drilled end 2 2 2 2

18 370-8 WASHER, 1/4 plain (max. 4)19 STD-1409 NUT, 7 /4-20, slotted shear 2 2 2 2

20 STD-68 PIN, 1116 dia. x1/2 long, cotter 2 2 2 2

21 67378 SCREEN, Oil suction I 1 I 1

22 ISTD-1045 GASKET, 1-1/4 I.D. x 1-1/2 O.D. x 3/32 annular 1 1 1 1

23 61358 PLUG, 1-1/2 hex. hd. x 1-1/4-12 thd. 1 1 1 1

24 70484 SCREEN, Oilsuction 1 1 1 1 1 1 1 1 1 1 I 1

25 ISfi)-ll1 GASKET, 1.00 I.D. x 1-1/4 O.D. x 3/32 annular 1 1 1 1 1 1 1 I 1 1 1 1

26 LW-12545 PLUG, 518 hex. hd. x 1.00-20 thd. 1 1 1 1 1 1 1 1 1 1 1 1

L~AVCO LYCOMING 0-320-A and E SERIES PARTS GATALOG

LOW COFIIPRESSION: WIDE OYLINDER FLANGE CRANK~ASE MODEL ENGINE

r: f.’.~at3

/3rl"

8 0

191

1

3 15 2

(kl i\l ill

18147_ 1‘=

’1

o,,

9 is j1

Bi-10~ 8

~22

~23

Figure 28. OIL SUMP ASSEMBLY AND O1L SUCTION SCREEN

6-2

r vr,OlV1ING 0-320-A and E SERIES PARTS CATALOG


OIL SUMP AND INDUCTION SYSTEM

INTAKE PIPE ASSEMBLY

FIG. N (IUANTITY PER ASSEMBLY

REF. PARTA AIAIAIAIEIEIEIEIEIEIEIEIEIEIE

29 NUMBER DESGRIPTION L 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3L BCDBAFABCDFGHDH

1 LW-16728 PIPE, Intake, cyls. no. 1 and 2 2 2 2 21 1 I I I I 1 12

2 LW-16730 PIPE, Intake, cyl. no. 3 1 1 1 II I I I I I I II

3 LW-16729 PIPE, Intake, cyl. no. 4 1 1 1 II I I I I I I II

4 74084’ PIPE, Intake 41 1 1 14 4 4 4 4 4 4 4 4 4

5 STD-1196 HOSE, 1-112 I.D. x 1-7/8 O.D. x 1-1/2 long 4 4 4 41 1 I I I I 1 14

69603 HOSE, 1-314 I.D. x 2-3/16 O.D. x 1-3/4 long 41 1 1 14 4 4 4 4 4 4 4 4 4

6 LW-15592-8-28 CLAMP, Hose 8

7 71793 GASKET, 2 bolt flange, 1-7/8 I.D. 4

8 74360 FLANGE, Intake pipe, upper 4 4 4 41 1 I I I I 1 14

73346 FLANGE, Intake pipe, upper 41 1 1 14 4 4 4 4 4 4 4 4

LW-14555 FLANGE, Intake pipe, upper I I I 1 1111 1 1 141 1 149 STD-8 WASHER, 114 plain 8

10 ISTD1GO WASHER, 1/4 lock, internal teeth 8

11 ISTD-1215 BOLT, 1/4-20 x 1-114 long, hex. hd. 8

Used on sumps with dynafocal mounting.

6-3

~7A1VCO LYCONIINr= 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE GRANKCASE MODEL ENGINE

77 ’7

37

1ST\I

07 6

iiTi~i 27 1

1 J-i-´•:

"t= ii 8

9

10

Figure 29. INTAKE PIPE ASSEMBLY

~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKOASE MODEL ENGINE


CARBURETOR ASSEMBLY

F(G. ON QUANTITY PER ASSEMBLY

REF. PART

30 NUMBER A A(AlAlAlElElElElElElEIEIEIEIEOESCRIPTIONL 2 2 2 3 1 1 2 2 2 2 2 2 2 3 3t B 0 D B A F A B C D F G H D H

1 66224 GASKET, Carburetor 1

2 72394 ICARBURETOR, MarvelSchebler, MA-4SPA(1O-3678-32) Il(i(lllll~ I1I1I1I (11 (177279 CARBURETOR, Marvel Schebler, MA-4SPA (10-4910) 1 (II I I II78728 CARBURETOR, Marvel Schebler, MA-4SPA (10-5009) 11( 1 11(1(11 1111(1(1111)1LW-13659 CARBURETOR, Marvel Schebler, MA-4SPA

LW-15986 I CARBURETOR, Marvel Schebler, MA-4SPA

3 STD-35 WASHER, 5/16 plain 4

4 STD-I´•110 NUT, 5/16-18 plain IQ5 STD-1763 LOCKNUT, 5/16 palnut 14

LYCONIING 0-320-A and E SERIES PARTS CATALOG


c A-~ I\

/ii

c,I I\I c,

Ict o

i:i

:rr_i IilT\

~r t- :n

I i: e,

~´•1

o I~e\i o

M

Figure 30. CARBURETOR ASSEMBLY

6-6




PRIMING SYSTEM

FIG. N IIUANIITY PER ASSEMBLY

REF. PARTA AlAlAlAlElElElElElElEIEIEIEIE31 NUMBER DESCRIPTION L22231122222223 3L B C D B A F A B C D F 0 H D H

1 1102’ PLUG, 118-27 NPT, Alien 4

2 LW-12098-1-170 TUBE ASSY., Primer cylinders, nos. 1 2 2 2 2 2 2 2 2 2 2 2 2

3 LW-12098-1-116 TUBEASSY., Primercylinders, nos. 3&4 2 2 2 2 2 2 2 2 2 2 2

4 LW-12098-0-10D TUBEASSY.,Primer, intermediate 2 2 2 2 2 2 2 2 2 2 2

5 LW-16266-25-13 CLAMP 4 4 4 4 4 4 4 4 4 4 4

6 LW-18959-150-25 ICLAMP, 1-1/2 I.D. with 1/4 dia. offset 4 4 4 4

71910 CLAMP, 1-3/41.0. with 1/4 dia. offset 4 4 4 4 4 4 4

7 STD553 SCREW, No. 6-32 x 1/2 lg., rd. hd. 4 4 4 4 4 4 4 4 4 4 4

8 AN365-632A NUT, No. 6-32, self-locking 4 4 4 4 4 4 4 4 4 4 4

9 SJD-853 TEE, Union, 1/8 tube 3 3 3 3 3 3 3 3 3 3 3

10 74225 NIPPLE ASSY., Primer 4 4 4 4 4 4 4 4 4 4 4

Assemble in cylinder heads.

6-7



ill

121

131

/n’

Figure 31. PRIMING SYSTEM

6-8

SECTION

SERVICE KIT

SECTION

~AVCO LYCOMING 0-320-A and E SERIES PARTS CATALOGLOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE

SERVICE I(IT SECTION

SEAL AND GASKET SET

WIDE CYLINDER FLANGE MODELS

Part No. Part Name Qty.

69371-1 SEAL AND GASKET SET 1

MS29512-6 SEAL 1

STD-111 GASKET 1

STD-2217 SEAL, Oil 1

STD-213 SEAL 1

STD-294 GASKET, Annular 2

STD-548 SEAL, Oil 1

STD-1006 RING, Oil seal 1

STD-1045 GASKET, Annular 2

STD-2072 "O RING" 1

1691-C GASKET 1

8313 GASKET, Vacuum pump 2

60096 GASKET, Fuel pump 1

60592 GASKET, Carburetor I

60820 GASKET, Oil suction tube flange 1

61173 GASKET, Oil pressure housing 1

61183 GASKET, Accessory adapter 1

61523 CONTAINER 1

61531 GASKET, Hydraulic valve 1

62224 GASKET, Magneto adapter 4

65321 GASKET, Exhaust flange 4

66224 GASKET, Carburetor 2

68315 GASKET Accessory drive adapter 1

69164 GASKET 1

69345 SPACER 4

69551 GASKET, Accessory pad cover 1

69720 GASKET, Dual accessory drive cover 1

63827 GASKET Governor spacer 1

70310 SEAL, Shroud tube 8

70455 GASKET 1

71481 RING, Oil seal 4

71973 GASKET Intake ~ange 4

72053 GASKET, Governor drive 2

72059 GASKET 1

72075 SEAL, Oil 6

72078 LOCI(PLAT%, Cam gear 2



72829 LOCKPLATE 1

73383 LOCKPLATE 2

73817 LOCKPLATE, Crankshaft idler gear shaft 2

73818 GASKET, Accessory housing 1

74065 RING, Oillevel gage seal 1

74068 RING, Oil level gage seal 1


75906 GASKET, Rocker box cover 4

76510 GASKET 1

76940 SEAL, Crankshaft oil 1

LW-12272 LOCKPLATE, Shroud tube 4

7-1

LYCOMING 0-320-A and E SERIES PARTS CATALOG


SERVICE IUT SECTION

SEAL AND GASKET SET



69371-1 SEAL AND GASKET SET (Continued) 1

L~V-12681 GASKET, Magneto 2

GASKET 1

LT?r-13353 GASKET, Oil sump 1

L~T-13792 SEAL, Crankshaft oil 1

L~lr-14260 SEAL, Tachometer shaft 1

L~-14995 SPRING 4

LW-18639 LOCKPLATE, Crankshaft gear 1

LW-18661 SEAL, Shroud tube 16

7-2

~AVCO LYCOMING 0-320-A and E SERIES PARTS ~ATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE CRANKGASE MODEL ENGINE

SERVICE IUT SECTION

CYLINDER, PISTON AND RING KIT



76659-A* CYLINDER, PISTON AND RING KIT 1

EdS13997-3 KEY, Valve, exhaust 2

MS13998-3 CAP, Valve stem 1

STD-1411 NUT, Plain, 114-20 1

STD-1925 SCREW, 114-20 x 5/8 long, fill. hd, self-locking 6

60009 KEY, Valve 2


LW-13790 SHAFT, Valve rocker 1

60828 PLUG, Piston pin 2

61247 COVER, Rocker box 1

LW-11800 SPRING, Valve, outer 2

65441 SEAT, Valve spring, lower 1

LW-11795 SPRING, Valve, auxiliary 2

LW-10077 SEAT, Valve spring 1

LW-14995 SPRING, Shroud tube 1


LW-13445 PIN, Piston 1

LW-18790 ROCKER ASSY., Valve 2


71195 BOX, Set-up 1

71481 RING, Oil seal, 4-27/32 I.D. x 3/32 dia. sect. 1

LW-16475 SEAT, Valve spring 1

73857 or LW-12328 RING, Oil regulating 1

73938 VALVE, Intake 1

L~W-13323 SEAT, Valve spring, lower exhaust 1

74989 RING, Piston compression 2

LW-19001 VALVE, Exhaust (rotator type) 1

75413 PISTON 1

LW-12417 CYLINDER AND HEAD ASSY. 1


STD-1215 BOLT 2

SSP-2472 TAG 1

LW-12892 THRUST BUTTON 2

Kit designated with suffix "A" for engine incorporating heavy piston pin (LW-13445).

7-3

cco LYC~7n~ ING 0-320-A and E SERIES PARTS CATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE CRANKCASE MODEL ENCilNE

SERVICE IUT SECTION

CYLINDER, PISTON AND RING KIT


Part No. Part Name QtST,

77462-A* CYLINDER, PISTON AND RING KIT 1

MS13997-3 KEY, Valve, exhaust 2

MS13998-3 CAP, Valve stem 1

STD-1215 BOLT, 114-20 x 1-114 long 1

STD-1411 NUT, ~1Rin. 1/4-20 1

STD-1925 SCREW, 1/4-20 x 518 long, fill. hd., self-locking 6

60009 KEY, Valve, intake 2


LW-13790 SHAFT, Valve rocker 1

60828 PLUG, Piston pin 2

61241 COVER, Rocker box 1

LW-11800 SPRING, Valve, outer 2

65441 SEAT, Valve spring, lower intake 1

LW-11795 SPRING, Valve, inner 2

LW-10077 SEAT, Valve spring, upper intake 1

LW-14995 SPRING, Shroud tube 1


LW-13445 PIN, Piston 1

LW-18790 ROCKERASSY., Valve 2


71195 BOX, Set-up 1

71481 SEAL, Cylinder base I

LW-16475 SEAT, Valve spring, upper exhaust 1

’13857 or LW-12328 RING, Oil regulating 1

73938 VALVE, Intake 1

74241 RING, Piston compression 2

LW-13323 SEAT, Valve spring, lower exhaust 1

LW-12416 CYLINDER ASSY., (Nitrided) 1

LW-19001 VALVE, Exhaust 1

75413 PISTON 1


SSP-2472 TAG 1

LW-12892 THRUST BUTTON 2

Kit part number with suffix "A" uses L~-13445 piston pin (heavy).

7-4

SECTION

NU NIERICAL INDEX



NUMERICAL INDEX

PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.

AN365-632A Nut 4-3 LW-1 3796 Shaft 1-13

AN365-632A Nut 6-7 LW-13813 Crankcase Assy. 1-1

AN-500-4’16-18 Screw 4-3 LW-13B17 Crankcase Assy. 1-1

AN565B1032H5 Set Screw 1-11 LW-13884 Bearing 1-5

AN6-7 3 Bolt 5-4 LW-13896 Plug 1-1 1

AN6-14 Bolt 5-4 LW-I 3923 Bushing 3-1

AN6-7 6 Bolt 5-4 LW-14021 Shaft 1-1 1

AN6-32 Bolt 5-4 LW-I 4057 Clip 4-1

AN6-34A Bolt 1-15 LW-I 4057 Clip 4-3

AN777-8D Elbow 2-14 LW-14060 Clip 4-1

AN81 6-8 Nipple 2-14 LW-I 4060 Clip 4-3

AN844-1 OD Elbow 2-14 LW-14068 Pin 3-1

AN901-8A Gasket 2-14 LW-1 4077 Pin 3-1

AN960-67 6L Washer 1-15 LW-14078 Pin 3-1

LW-1 0077 Seat 3-5 LW-14260 Seal 2-3

LW-10647 Dowel 1-1 LW-1 4308 Alternator 5-1

LW-7 0729 Link 5-4 LW-14316 Alternator 5-1

LW-7 0828 Sump Assy. 6-1 LW-14319 Alternator 5-1

tW-11775 Plug 3-1 LW-14416 Housing Assy. 2-1

LW-71795 Spn‘ng 3-5 LW-14555 Flange 6-3

LW-7 1800 Spring 3-5 LW-14735 Gage Assy. 3-1

LW-71866 Nut 1-15 LW-14757 Gage Assy. 1-3

LW-7 2098-0-100 Tube Assy. 6-7 LW-1 4758 Gage Assy. 1-3

tW-l 2098-1-1 1 6 Tube Assy. 6-7 LW-14759 Gage Assy. 1-3

LW-12098-1-7 70 Tube Assy. 6-7 LW-14768 Gage Assy. 1-3

LW-12186 Nut 3-1 LW-14780 Gage Assy. 1-3

LW-12272 Lockplate 3-5 LW-14793 Gage Assy. 1-3

LW-’I2408 Housing Assy. 2-1 LW-14995 Spring 3-5

LW-7 247 6 Cylinder Assy. 3-3 LW-I 5472 Fuel Pump 2-9

LW-1247 7 Cylinder Assy. 3-3 LW-1 5571 Starter 5-6

LW-I 5572 Starter 5-6

LW-12446 Crankshaft Assy. 1-7 LW-15592-5-05 Clamp 3-9

LW-I 2545 Plug 6-1 LW-I 5592-8-28 Clamp 6-3

LW-12681 Gasket 4-1 LW-15635 Mag. Harness Assy. 4-1

LW-1 2706 Adapter 4-1 LW-I 5636 Magneto 4-1

LW-1 27 7 2 Housing Assy. 2-1 LW-I 5637 Mag. Harness Assy. 4-1

LW-’12782 Housing Assy. 2-1 LW-15638 Magneto 4-1

LW-12789 Tube Assy. 1-3 LW-157208 Kit Assy. 4-1

LW-12795 Gasket 2-14 LW-157209 Kit Assy. 4-1

LW-12892 Thrust Button 3-7 LW-15970 Tube 1-3

LW-13039 Bracket 5-4 LW-1 5986 Carburetor 6-5

LW-13215 Oil Filter 2-14 LW-I 6047 Bearing 1-5

LW-13323 Seat 3-5 LW-I 6266-25-13 Clamp 6-7

LW-7 3353 Gasket 6-1 LW-I 6266-25-38 Clamp 2-5

~W-’13365 Brace 5-4 LW-16266-25-50 Clamp 4-3

LW-13659 Carburetor 6-5 LW-163005-2 Magneto 4-1

LW-13775 Impeller Assy. 2-3 LW-163045-3 Magneto 4-1

LW-7 3790 Shaft 3-7 LW-163045-6 Magneto 4-1

LW-13792 Seal 1-5 LW-1 6460 Starter 5-6

LW-7 3793 Stud 1-1 LW-I 6475 Seat 3-5

8-1

L~AVeO LYCOMING 0-320-A and E SERIES PARTS CATALOG


NUMERICAL INDEX (Cont.)


LW-7 6591 Mag. Harness Assy. 4-1 870-8 Washer 6-1

LW-l 6771 Bearing 1-5 STD-8 Washer 6-3

LW-7 6728 Pipe 6-3 STD-19 Dowel 1-11

LW-7 6729 Pipe 6-3 STD-33 Washer 1-15

LW-1 6730 Pipe 6-3 STD-33 Washer 2-9

LW-17060 Crankshaft Assy. 1-7 STD-8 5 Washer 1-1 1

1_W-17067 Crankshaft Assy. 1-7 STD-35 Washer 2-3

LW-1 7063 Crankshaft Assy. 1-7 STD-3 5 Washer 2-5

LW-17064 Crankshaft Assy. 1-7 STD-35 Washer 2-7

LW-1 7066 Crankshaft Assy. 1-7 STD-8 5 Washer 3-7

LW-13067 Crankshaft Assy. 1-7 STD-35 Washer 5-2

LW-1 8369 Crankcase Assy. 1-1 STD-8 5 Washer 5-4

LW-18372 Crankcase Assy. 1-1 STD-35 Washer 5-6

LW-1 8379 Crankcase Assy. 1-1 STD-3 5 Washer 6-5

LW-1 8639 Lockplate 1-7 STD-68 Pin 5-2

LW-18667 Pin 1-9 STD-68 Pin 6-1

LW-18790 Rocker Assy. 3-7 STD81 Plug 6-1

LW-7 8837 Camshaft Assy. 1-9 STD-1 1 1 Gasket 6-1

LW-78838 Camshaft Assy. 1-9 STD-160 Washer 1-? 5

LW-1 8959-1 50-25 Clamp 4-3 STD-I 60 Washer 2-3

LW-7 8959-1 50-25 Clamp 6-7 STD-1 60 Washer 2-11

LW-19007 Valve 3-5 STD-I 60 Washer 2-13

LW-31-7.09 Bolt 5-6 STD-1 60 Washer 2-14

LW-31 H.75 Bolt 5-2 STD-1 60 Washer 4-3

LW-31 H.75 Bolt 5-4 STD-1 60 Washer 6-1

tW-38.75 Bolt 2-9 STD-1 60 Washer 6-3

LW-349305 Magneto 4-1 STD-294 Gasket 2-14

LW-349365-3 Magneto 4-1 STD-425 Washer 1-5

LW-51 360-29 Magneto 4-1 STD-47 5 Washer 1-1 1

LW-51360-37 Magneto 4-1 STD-47 5 Washer 2-5

LW-57360-45 Magneto 4-1 STD-47 5 Washer 2-7

LW-52305-1 Kit Assy. 4-1 STD-47 5 Washer 3-7

LW-M-2375 Plate 4-3 STD-47 5 Washer 4-1

LW-M-2403 Hamess Assy. 4-3 STD-47 5 Washer 5-4

LW-M-2404 Harness Assy. 4-3 STD-47 5 Washer 5-6

LW-M-247 5 Harness Assy. 4-3 STD-514 Dowel 1-1

LW-M-2416 Harness Assy. 4-3 STD-548 Seal 2-11

M-7 985-48 Lead Assy. 4-3 STD-5 51 Plug 6-1

M-7985-72 Lead Assy. 4-3 STD-553 Screw 4-3

MS1 3997-3 Key 3-5 STD-553 Screw 6-7

MS13998-3 Cap 3-5 STD-557 Dowel 1-1

MS1 6625-1081 Ring 1-9 STD-596 Nut 1-15

MS20822-6 Elbow 2-5 STD-678 Washer 1-15

MS20823-6D Elbow 3-3 STD-678 Washer 2-9

MS29512-06 Ring 2-5 STD-684 Nipple 3-9

STD-8 Washer 1-15 STD-690 Washer 5-4



STD-8 Washer 2-13 STD-713 Pin 5-4

STD-8 Washer 2-14 STD-761 Pin 4-1

STD-8 Washer 4-3

8-2

~AVCO LYCOMING 0-320-A and E SERIES PARTS GATALOG

LOW COMPRESSION: WIDE CYLINDER FLANGE CRANK~ASE MODEL ENGINE



STD-783 Plug 2-7 STD-I 727 Washer 5-4

STD-784 Plug 2-1 STD-1763 Locknut 6-5

STD-784 Plug 2-14 STD-1 774 Pin 2-7

STD-798 Dowel 1-11 STD-I 774 Pin 2-11

STD-853 Tee 6-7 STD-1 836 Bolt 5-2

STD-872 Nut 1-15 STD-I 837 Bolt 5-2

STD-872 Nut 5-4 STD-1 838 Bolt 2-5

STD-938 Dowel 2-11 STD-I 838 Bolt 5-2

STD-1006 Ring 2-1 STD-I 838 Bolt 5-4

STD-1 045 Gasket 1-5 STD-1851 Bolt 5-2

STD-I 045 Gasket 6-1 STD-I 856 Screw 2-14

STD-I 065 Dowel 7-7 STD-1858 Bolt 5-4

STI~-1196 Hose 6-3 STD-I 872 Insert 3-3

STD-1 204 Bolt 2-3 STD-I 874 Screw 4-3

STD-1 204 Bolt 6-1 STD-I 882 Screw 2-9

STD-7 211 Plug 1-7 STD-1925 Screw 3-7

STD-7 215 Bolt 2-11 STD-1930 Hose 2-5

STD-I 215 Screw 4-3 STD-2072 Ring 2-11

STD-1215 Bolt 6-3 STD-2084 Bolt 1-15

STD-I 221 Ring 2-7 STD-2090 Nut 3-7

STD-7 225 Washer 6-1 STD-21 56 Bolt 5-6

STD-I 339 Plug 1-1 STD-21 67 Screw 1-13

STD-1 339 Plug 2-3 STD-21 68 Nut 1-13

STD-I 339 Plug 2-11 STD-21 80 Hose 3-9

STD-I 409 Nut 1-15 STD-2213 Screw 1-7

STD-I 409 Nut 6-1 STD-2217 Seal 2-11

STD-7 410 Nut 1-1 1 10-720632-48 Lead Assy.. 4-3

STD-7 410 Nut 2-7 25(3-9 Stud 3-3

STD-7 410 Nut 3-7 250-10 Stud 2-14

STD-I 410 Nut 4-1 250-11 Stud 2-1

STD-1410 Nut 5-6 25(3-22 Stud 2-1

STD-1410 Nut 6-5 25(=-31 Stud 2-1

STD-1411 Nut 1-15 310-12 Stud 1-1

STD-1417 Nut 2-11 310-12 Stud 2-1

STD-1411 Nut 2-13 310-12 Stud 3-3

STD-7411 Nut 2-14 310-13 Stud 1-1

STD-1411 Nut 3-5 310-13 Stud 2-1

STD-1411 Nut 4-3 310-14 Stud 1-1

STD-7417 Nut 6-1 310-14 Stud 2-7

STD-1414 Bolt 1-15 310-15 Stud 6-1

STD-7 414 Bolt 2-3 310-16 Stud 2-7

STD-74’16 Bolt 1-15 31C-19 Stud 2-1

STD-1419 Bolt 1-15 31CD-17 Stud 2-1

STD-I 419 Bolt 6-1 38-13 Stud 1-1

STD-7 420 Nut 2-3 38-22 Stud 1-1

STD-7420 Nut 5-2 380-17 Stud 1-1

STD-1 433 Bolt 6-1 50-15 Stud 1-1

STD-1 623 Insert 1-1 383-8 Nut 3-7

STD-1 727 Washer 4-1 1028-8 Ball 1-5

STD-1 727 Washer 5-2 1102 Plug 1-1

8-3

~AVCe) LYCOMING 0-320-A and E SERIES PARTS CATALOG




1102 Plug 2-1 65321 Gasket 3-7

1102 Plug 2-7 65441 Seat 3-5

1102 Plug 3-3 66145 Dowel 2-11

1702 Plug 6-7 66224 Gasket 6-5

1 7 82-83 Spark Plug 4-1 66610 Bushing 3-3

1182-B7 Spark Plug 4-7 66796 Insert 3-3

1182-F3 Spark Plug 4-1 68315 Gasket 2-7

7182-Q5 Spark Plug 4-1 68317 Shaftgear 2-7

1182-U4 Spark Plug 4-1 68593 Spacer 2-13

8313 Gasket 2-13 68759 Tube Assy. 3-9

60009 Key 3-5 68760 Tube Assy. 3-9

60028 Guide 3-3 68761 Tube Assy. 3-9

60096 Gasket 2-9 68867 Support Assy. 1-7

60430 Cover 2-13 68974 Housing 2-14

60546 Impeller 2-3 68987 Tube 3-5

60803 Strap 1-15 69106 Cpver 2-7

60820 Gasket 6-1 69316 Gear 2-11

60828 Plug 3-1 69318 Shaft 2-11

60882 Gear 1-7 69319 Gear Assy. 2-11

60886 Belt 5-1 69373 Bearing 3-1

67084 Spring 1-5 69436 Spring 2-14

61098 Adapter Assy. 2-11 69510 Housing 2-14

67155 Gear 1-7 69551 Gasket 2-7

61163 Gear 4-1 69603 Hose 6-3

67173 Gasket 2-14 69675 Connector 2-14

61174 Shaft 2-3 69720 Gasket 2-11

61183 Gasket 2-11 69722 Stud 2-11

61247 Cover 3-7 69724 Stud 2-11

61259 Flange 3-7 69725 Adapter Assy. 2-11

61260 Flange 3-7 69730 Gear Assy. 2-11

67262 Stud 2-11´• 69731 Bushing 2-11

61358 Plug 6-1 69742 Cover Assy. 2-11

61376 Connection 6-1 69796 Dowel 1-1

67377 Connection 6-1 69942 Stud 2-11

67378 Screen 6-1 70310 Seal 3-5

67381 Tube Assy. 6-1 70347 Dual Drive Assy. 2-11

61400 Stud 2-1 70419 Bracket 5-2

61400 Stud 6-1 70455 Gasket 1-11

61570 Plug 1-7 70484 Screen 6-1

61544 Plunger 1-13 71023 Brace 2-11

61665 Gear 4-1 71140 Fitting 2-14

62224 Gasket 4-1 71481 Ring 3-7

62415 Plunger 2-14 71596 Washer 2-7

624’13 Plug 2-14 71596 Washer 2-11

62532 Cap 2-14 71610 Hook 3-9

62815 Housing 2-14 71611 Retainer 3-9

62817 Screen Assy. 2-14 71 620 Bolt 2-1 4

62922 Seal 3-5 71623 Washer 2-14

65007 Retainer 1-1 71793 Gasket 6-3

65098 Cover 2-9 71910 Clamp 4-3

8-4





71970 Clamp 6-7 74230 Guide 3-3

72026 Belt 5-1 74241 Ring 3-1

72053 Gasket 1-11 74323 Strut 5-4

72053 Gasket 2-7 74324 Bracket 5-4

72057 Seat 3-3 74325 Link 5-4

72058 Seat 3-3 74360 Flange 6-3

72059 Gasket 1-3 74414 Support Assy. 1-7

72063 Bushing 1-7 74636 Rocker Assy. 3-7

72064 Bushing 1-7 74637 Bushing 3-7

72065 Bushing 1-7 74771 Spacer 2-13

72066 Bushing 1-7 74887 Spacer 3-7

52067 Bushing 1-7 74989 Ring 3-1

72075 Seal 1-5 74996 Gear Assy. 1-13

72097 Ring 1-5 75072 Gear Assy. 1-13

72158 Bushing 1-1 75089 Piston 3-1

32220 Gasket 1-3 75118 Gasket 3-7

72372 Ring 1-3 75153 Adapter Assy. 2-7

52351 Screw 4-3 75154 Stud 1-1

72362 Sump Assy. 6-1 75165 Clip 2-5

J2378 Cover 1-11 75166 Tube Assy. 2-5

32378 Cover 2-7 75167 Tube Assy. 2-5

72394 Carburetor 6-5 75380 Link 5-4

72473 Fitting 2-14 75413 Piston 3-1

52495 Gear 4-1 75545 Adapter Assy. 2-7

72566 Gear 1-7 75626 Plug 2-1

72569 Baffle Assy. 3-9 75730 Tube Assy. 2-5

52877 Body 1-5 75735 Tube 1-3

72970 Gear Assy. 2-11 75736 Tube 1-3

73231 Gear Assy. 2-11 75739 Nipple 2-5

73249 Washer 1-11 75761 Extension 1-3

73250 Washer 1-11 75767 Tube 1-3

73251 Washer 1-11 75906 Gasket 3-7

73252 Washer 1-11 75944 Valve Assy. 2-14

73317 Tube 2-1 75965 Clamp 4-1

73346 Flange 6-3 76028 Link 5-2

73383 Lockplate 5-2 76103 Housing Assy. 2-1

73383 Lockplate 5-4 76104 Housing Assy. 2-1

53411 Rod Assy. 3-7 76107 Housing Assy. 2-1



73414 Rod Assy. 3-7 76118 Spacer 1-9

73878 Gasket 2-1 76119 Shield 2-1

73857 Ring 3-1 76121 Shaft Assy. 1-9

73938 Valve 3-5 76210 Starter 5-6

74058 Plug 1-11 76220 Stud 1-15

74065 Ring 1-3 76496 Alternator 5-1

74068 Ring 1-3 76510 Gasket 2-14

74070 Elbow 2-5 76529 Plug 1-5

74084 Pipe 6-3 76534 Shim 5-4

74225 Nipple Assy. 6-7 76628 Support Assy. 1-7

8-5

~AVCO LYCOMING 0-´•320-A and ESERIES PARTS CATALOG




76734 Strap 4-1 77808 Valve Assy. 1-5

76734 Zip Strap 4-3 77852 Filter Base Assy. 2-14

76899 Support Assy. 1-7 77853 Filter Hsg. Assy. 2-14

76906 Bracket 5-4 77872 Bushing 1-11

76908 Strut 5-4 77874 Gear Assy. 1-11

76923-48870-63 Lead Assy. 4-3 77875 Gear 1-11

76923-48390-63 Lead Assy. 4-3 78027 Bolt 3-1

76923-72390-63 Lead Assy. 4-3 78030 Rod Assy. 3-1

76927 Housing Assy. 2-1 78290 Plunger Assy. 3-5

76944 Support Assy. 1-7 78308 Alternator 5-1

76967 Clamp 4-1 78524 Socket 3-5

77279 Carburetor 6-5 78528 Body Assy. 2-3

77309 Bushing 1-13 78589 Plug 1-11

77527 Extension 1-3 78626 Tube Assy. 1-3

77617 Gasket 3-7 78728 Carburetor 6-5

77743 Harness Assy. 4-1 78914 Connection 6-1

77745 Harness Assy. 4-1

Documents

0-320-A-E-_PC-203-1