65-79QuadrajetAdjustments

Delco Carburetorc ADJUSTMENT PROCEDURES

MODELS 4MV - 4MC - M4MC - M4ME NOTE: PERFORM ADJUSTMENTS IN PROPER SEQUENCE.

PAGE: 1 REPLACES PAGE 1

APRIL 1979

~ ' " c I F R O M TOP or CASTING 10 TOP LOAT G A U G 1 N C PONNTI 16 BACX

rnoos iioiir ~ r r a r s r r INSET#

YIS"4LL" cnrcr r ,or i arlCNMrNr ASTER AI)I"STING

,~ - , , a',

i 5 _-,

I i -

, ,- , , ~ , ,

',

I

.--/ QUADRAJET AIR HORN

SCREW TIGHTENING SEQUENCE FIG. 2

PUMP ROD HOLE LOCATION FIG. 3

-

ROD IN SPECiFlED HOLE OF PUMP LEVER

BENDlNG LEVER

@THROTTLE vnLvEs COMPLETELY CLOSED NOTE M A K F SURE FAST (OLE

BEND SECONDARY CLOSING T&NG AWAY TO CLOSE P R l M A R Y VALVES. THEN READJUST

PUMP ADJUSTMENT FIG. 4

i . , G A U G E F R O M TOP O F C H D X E VALYE WALL N E X T T O VENT S T A C I 7 0 TOP OF PUMP STEM

7" &OJ"ST

> ' O P E N PIIIMAR",".OTTLE TO A 1 0 N T W I I E R I O L E VENT ,"ST CLOSES

-- -

r ' l L ' '1.

IDLE VENT ADJUSTMENT FIG. 5

$1 (5, "'"'"ALVE A R M MUST

CONTACT %I M E T A L STRIP n T T n s PON,

,@ O P ' " ~ ~ M ~ R " T " R O , , L . 70 A POINTWHERE ,OLE VENT

V A L V E AWM JUST CDN,AC,S B4 M E T A I S T P I P i l T Y I \ I Y I

IDLE VENT ADJUSTMENT (THERMOSTATIC TYPE)

FIG. 6

- G A U C L i P O M TOP OF CHOKE VALVE W A L L N E X T T O "EN, STACK 10 TOP OF PUMPSTEM A S S P E C ~ E D

BULLETIN: 9D-5A RED SECTION DATE: MAY 1983 PAGE: 2

*,,* P L U C C A U C E , * I I , L , L t D S , l P 3 % 1"s

BOW, Y E W ( V ~ ~ ~ t r , :.A.E.o"s BOW, "EM, ".L"E ""0"'"" '"'"8'" """ ,F ........" 'o..,"I' R I M O " ' " " "

C0.S. A...C",N. sc..w ,bcLz",::::;Eo:":::"Lo A " o ' " R " "" %"'" RE""" """ COVER A W D G A S K S , A f T E R A D I Y I I U t W I

, I P t C , F L D L A ~ I T E B L i l l t N

, O L E < e r t O scnrw ,l.,, ",L , t v<s iTOP71I111

N"1G P6aconM .D,"S,MSW, W,," C I1M.OLIOWI . ,t"Er 2 . Yi,,* ,*137,L1 V . L Y , I C L o i c D i O M P L L l l l y

OF? STcmSoF Fa*, C , , * 8 1 0 ~ L U W IDLE I C s i i V Y Y I l l l i I C s t n

to te CAM,^,^^ O P E N l . N ~ ~ n l w s ~ r ~ ~ ~ ~ i ~ r i l I * ( ~ C"0"E POS#,>OM, TYRNii.m. S N I I 1 I Y R N I I BOWL VENT VALVE ADJUSTMENT

FIG. 7 I *

(I*c*rcn FAST IDLE

,WGTO s-Ec#F# ~p

,-, \~ , as, ,DLE SCBEW 1NTO CONTACT LEYE. O", "N,,, P R # M A R " , * I N TURN SCREW I N Tnse,TLl VALVES IIII CLOSED S P I C i i l * D NYMBEI I " 6 i U I i N I TO A D 1 U I T i S E E NOT61

FAST IDLE ADJUSTMENT (BENCH) FIG. 8

-

NOTE: IF TAYPEP..I1ESISTANT CHOKE (RIVETED) IS USEO. REYOYE CHOKE COVER ANOCOlLABLEMBLIFOLLOWINO INSTRUCTIONSINCHOKESTATCOVER RETAlNED KIT.

THERMOSTITJC COUNTERCLOCKWISE)

WER EOOE OF LEVER SHOULD T CONTACT SIDE OF PLUG

BERT LPEClFlED

OLOOSENTHRLERE~A~NINO SCREWSAND @PLACE CAM REMOVE THE THERMOSTATIC COYER AND COIIASSEUBLIFROMCHOIEHDUBlNG FOLLOWER ON HlGH STEP

(SEE NOTE,. OF FAST lDLE CAM.

CHOKE COIL LEVER ADJUSTMENT FIG. 9

L

Y Y I l Bi M A D L B i l O * L C ) 1 O " r .OJ" I,III N, i.0, . O J L I I I U t W T 11UhDt

CHOKE ROD (FAST AM) ADJUSTMENT

r?! Gh"Gt s trrer* iovra EOeE or C " 0 K t wa<vs*

17 BE.O.A.6

,WS, rnE ASP "OSW WALL ow Fa#, ,OLE C A W

WOTE "0LooA"Oe

P " S " # W G " P ~ " & ~ O ="OKs 'O,, LEVER

CHOKE, ROD (FAST IDLECAM) ADJUSTMENT FIG. 11

MUST BE MADE BEFORE CMOIE ROD P(IEJITF.iJTIDLEdCREW B 1

I O I U B T M E N T IS MADE a MIXING FAST IDLC hDIUITMINT

CHOKE ROD (FAST IDLE CAM) ADJUSTMENT FIG. 12

-

a=.".. srwrr* usr.a iir~rt or r*o..r*lurs

I l iB lOE A S "ORWIALL

PUIHIMT "W1.D C " ~ X E r n , , Leven

CHOKE ROD (FAST IDLE CAM) ADJUSTMENT FIG. 13

0.1.. FASICOLE ADdUSTMENT I~ENCHORON-THE~CAIIJEVINCI. 'ICENTIREDI

,

F-

@PLACE CAM POLLOWE. ON SSCONO STEP OF

STEP

P-2

CHOKE ROD (FAST IDLECAM) ADJUSTMENT

FIG. 13A

@ ~ ~ ~ ( : R I : ~ ~ ~ C O ~ L LEVER AND FAST IDLE ADJMTYENT (BENCH OR OWTHE.

NOTE: IF TAUPER.RLSISIAWT CHOKE (DIVEIEDJ S USED. DONOIREYOYEIIVET. ~ ~ ~ C * O * E C O Y ~ R T O P E R f O l Y ~HISADJUOIYENT. UY RUB~ER BANOO. "*CUUY B*EAK LLMR TANG 10 WDLO CHOKE YILYE C L O ~ D .

@TOADJUOT,IENDTANO

LlGHTLI CLOSE CWOKE BY PUSWINO UPWARD ON CHOKE COW LEVERORVACUUM BREAXLEIER TAN= @ R E M O V E @ ~ ~ ~ . . (HOLD IN PO9ITION WITI I RUBBER BINOJ.

CHOKE ROD (FAST IDLE CAM) RELATION ADJUSTMENT

FIG. 13B

Delco Carburetor BULLETIN: BD.SA RED SECTION

ADJUSTMENT PROCEDURES DATE: MAY 1983 PAGE: 3

MODELS 4MV - 4MC - M4MC - M4ME REPLACES PAGE 3 APRIL 1979 NOTE: PERFORM ADJUSTMENTS I N PROPER SEQUENCE.

- PUCE QAUGE O I T I E E W BOD AND END OF SLOT

NOTE2:OM YODELS WlTH PLUNGER BUCKING SPIINC,HOLDSPRtNQ LOADEDPLUNTER PURGE BLEED HOLE IWWInDAIlDSEATED. DO NOTCOYPRESS

IS USED. REMOVE

BUCIlWC SPRING. -- - TAPE AFTER IDIUOIUEYT.

AIR VALVE ROD ADJUSTMENT IT"P4CAL)

FIG. 14

0 8"- * e m 10 O B T l l U ?) r.rctrleoctrrarwcr sriw.r.

AIR VALVE ROD ADJUSTMENT FIG. 15

COMPLETELY CLOSED

BEND ROO FOR SPECIFIED CLEIRANCEBEWEEHROD AND END OF SLOT IN LEYEm

AIR VALVE ROD ADJUSTMENT - REAR

FIG. 16

BULLETIN: 9D.SA RED SECTION DATE: MAY 1983 PAGE: 4

D l U O l I I T l t T N A,* "OW" W.LL .*oLOlr" EOOt

l l r n R l P Y O Y T I l D l u IOYRCS

WITH CHOKE SPRING PICK-UP LOCATED I N TOP NOTCH. H O L Q THE CHOKE V A L V E TOWARD THE CLOSED POSITION. H O L D

VACUUM BREAK DIAPHRAGM STEM AGAINST ITS SEATSO VACUUM BREAK ROO IS AT T H E END OF S L O T THE DIMENSION BETWEEN THE LOWER EDGE OF CHOKE V A L V E A N D AIR HORN. A T CHOKE LEVER END.SHOUL0 BE AS SPECIFIED.

BEND VACUUM BREAK ROO T O ADJUST.

FRONT VACUUM BREAK ADJUSTMENT FIG. 17 -

- FRONT VACUUM BREAK ADJUSTMENT

FIG. 19 THE VACUUM BREAK ADJUSTMENT MUST BE MADE AS FOLLOWS: LOOSEN THREE RETAINING SCREWS AND RE- MOVE THERMOSTATIC COVER AN0 COIL ASSEMBLY.

STEP "A" WITH CHOKE VALVE CLOSED. AND CHOKE ROD I N BOTTOM OF THE SLOT IN THE UPPER CHOKE LEVER. ALIGN THE THERMOSTATIC SPRING PICK-UP TANG DIRECTLY OVER THE INDEX TAB ON THE INSIDE OF THE CHOKE HOUSING.

AFTER TANG IS ALIGNED, ADJUST VACUUM BREAK TANG TO SPECIFIED DIMENSION BETWEEN TANG AND VACUUM BREAK PIN.

STEP "6"

WITH VACUUM BREAK DIAPHRAGM SEATED. AND TANG AGAINST VACUUM BREAK PIN. THE DIMENSION BETWEEN WALL AND LOWER EDGE OF CHOKE VALVE SHOULD BE AS SPECIFIED. MAKE SURE CHOKE ROD IS IN BOTTOM OF SLOT IN CHOKE LEVER WHEN GAUGING. TURN SCREWON VACUUM BREAK COVER TO AOJUST.

INSTALL BAFFLE PLATE AND THERMOSTATIC COVER. ADJUSTCOVER TO SPECIFIED MARK ON CHOKE HOUSING.

3 OPE,, PR'M""""""""'"L"" A"" R07A,e VACUUM 8.E.K L l Y l s "NIlL T.NOOY LEVER II I O I U S T M S

CONTACT END 0' I P

nl l A O l U S T h l E n T T I N G

SPLIT CHOKE SPRING ADJUSTMENT FIG. 18

, ,*air r i * t * i 5 100 * ' " 'TOY

FRONT VACUUM BREAK ADJUSTMENT FIG. 19

BETWEE. A,. "0%. W.LL A N D LOWE* EDGE OF

Y A C U U N IOUIiCEl

ChM FOLLOWER

FRONTVACUUM BREAK ADJUSTMENT FIG. 20

W l S l U N T I L I O P EDCC OF C A M

Y I L Y E O 5 0 THATFA67 # O i l C A M IOLLOWeP CLEA*5 STEPS ON CAST ,OLE C A M


Delco ,- FZl Delco Carburetor

ADJUSTMENT PROCEDURES MODELS 4MV - 4MC - M4MC - M4ME

NOTE: PERFORM ADJUSTMENTS IN PROPER SEQUENCE.

,Gh"G< BC?WCSM A89 "ORW *,A,, A h 0 LOWErn EDSE "F CHOKE \V&L$,E

2 - 0 ~ s ~ Pl8bMa.l i " . O l l l l "L,\,SS so ."A, F&,,


C O " W , ~ ~ C ~ ~ " ~ " ~ ~ , S ~ " W , , ,

L2"........ -

.A,,,,". C,.,.",, 8, .,,,, ".. ,,,,.,,,,.. r'-- ~ ~ ' ~ ~ ~ " ."..,,.. r * L n n s " l h G h l "LUYGCD B Y I X N T S P R Y T Y A L ~ ' ~ B s " T " A ~ i A i ~ I D l S N O T T O DULL .ME Y l i i Y Y M YIA"" . l IOM ' o L E r ~ U i " L L o w i s CLsams

OFF , , s s r * , s,EP3ourh%, , O L E C A M


a P,*CE G & " & E B E T % r t w , " K t " t " C t "i C M O X I

" A , \ , E L * D ,m,#<>c SbALL

S P a W r i , ,s t0 M u i r st COM

,,,,,,>,"E" ,>\ ACTtUN MA.( SURE " , < , , , C S , , I S 0 T H E D , A P " R & G M 0, c * , , ,Oh$ C A M PLUNCER 1 S I U L L " PE.,ED


,i, '_I

i l l U T S B c w L e N A l R HORN W I L L LND UPPr* KO61 or CHOKE waive


CAM FOLLOWERCLEARS STEPSON F&STlDLECLIM

- ~ -. ,,,, =I , ~

USiNG VACUUMSOURCE OUTSIDE

WISE UNTtLEND O F R O D 15 IN ENDOFSLOTIN LEVER

@mMove G w o s UNTlL BUBBLS IS CENTEREO

VACUUM BREAK ADJUSTMENT FIG. 25A

-

BULLETIN: 9D.5A RED SECTION DATE: MAY 1983 PAGE: 6

4: PLACI GAUGE BETWEEN urn LOOCOF C " 0 X E " A t V E *WD ,w3,mewALL OF A,% HOR*

2 : 5E.T DI.P".IOM "$LNG O",S,DE "AC""M %O"*CE

NOTE ON O E M " r $ l ? U e I MOOELS -LUG END COVER W,,H A P , E Z E OF W&S<\MG TAPE M * K , W G S U R E 7 0


a Ul<S CHOKS CDlLLEYER &NO IASTITDLEaDIUSTYTNT (BENCH OR OW-THE.CAR S m l t 4 G I . NOTE: wr~uvkm.aras~r~r CHOXE (IIVEIEOI 16 USED DONOTREYOYERIVETS ANOCHOXECOYERTOPERFORYTHlDIDIUSTYEHT. u<i RUBBER BAND ON VACUUM BREAK LEVERTANG 10 HOLD CMDIE VALVE CLOSED (STEP B I.

LEVER OR VI ICUUYBREI I LEVER TANG

ENDCOYER WiTH PllCE O I V S O U A I I E MASKING

FRONTVACUUM BREAK ADJUSTMENT FIG. 26A

r

80Ta.F CHOKE LEV C o " ~ T E ~ C L O C X W 1 s

NOTE #* "SSD

COVER A N 0 FL

C L " I I 0 . C a w MUIT 8 E USED W " e l C o M I I 1 1 I I I N T THC o l n e " R A r M PLUnrrP I s r l N C $0 NO. 10 PULL , *c V A C U U M D & s " l l & S M O r i Ins SEA.

REAR VACUUM BREAK ADJUSTMENT FIG. 27

, v , c * a r r V A L V E \ ~ ' S"0"LO B E

08, LEVER T O W l i l D I

(9 ; ~ i . L A C ' C " M ' " L ' " w r a rrvra ow n,cnesr

BREAK O I I P H R I I n M US8NT - O F r L ~ T m i l caN OUTSiDL V A C U U M I O U . I C I

REAR VACUUM BREAK ADJUSTMENT FIG. 29

OSE~DIAPHRASM USlNOYACUUM SOUllCl.

O F V S O U & R f m P r . REMOV ADJUSTMENT

N0TE:IFUSED DONOTTURN

COIL LEVER OR VACUUM

B R E M UNIT.

IJCOYPIIESSET1LNDSEITEO. BUCIlNG CHOKE LINKUNTIL SPRING BUSBLIISC6NTEflSD

? MAKE CnDIL COl l LEVLm I N 0 FLIST IDLE ADJUSTMENT (BENCH OR ON-THE-CAR O PETTING).NOTE: IF TAMPER-REBIOTANTCHOIE (RIVETED) ISUSEII,DD NOT

REMOVE RIVETBAND CHO<E COVER TO PERFORM THIS hDJUSTMLNT. USE RUBBER B&NDONYACUUM BREAK LEVER TANGTO HOLDCHOKEVALVECLOSED.

REAR VACUUM BREAK ADJUSTMENT FIG. 29A

Delco Carburetor BULLETIN: OD-SA RED SECTION


MODELS 4MV - 4MC - M4MC - M4ME REPLACES PAGE 7 NOTE: PERFORM ADJUSTMENTS IN PROPER SEQUENCE. APRIL 1979

I I

I UNLOADER ADJUSTMENT FIG. 30

UNLOADER ADJUSTMENT FIG. 31

I

UNLOADER ADJUSTMENT - Typical FIG. 33

ICENTERTDI @ HOLDPRIMARY THROTTLEVaIVEB WIDEOPEN.

@PUSH UPOR DOWN ON LEVERTOWARDS CLOSEDCHOKE.

F%?

UNLOADER ADJUSTMENT ITYPICALI

1 FIG. 33A

I

I @CLOSE CHOKE VALVE 81 PUSHING UP ONTINC ON VACUUM B W A K LEVEII(HOL0IN PD61110NWITH RUBBER BAND)

UNLOADER ADJUSTMENT UNLOADER ADJUSTMENT l n P r c m l

FIG. 32 FIG. 338

PAGE: 8 I

Nois FAST IDLE AND CMO" nilOD ADJUSTMENIS MUST 8 E M A B E F#R*T

I AIR VALVE LOCKOUT ADJUSTMENT FIG. 34 I

l n w l r ~ rocr rcarw LoorrwEaawa i2W,/* ~ I R V n l Y ~ C L D I i D T U R N A D l U I T l N C

SCREW SPEClclFO NUMBER O r TURNS AFlEr l

AIR VALVE SPRING ADJUSTMENT FIG. 35

I SECONDARY LOCKOUT ADJUSTMENT FIG. 36 I

I SECONDARY CLOSING ADJUSTMENT FIG. 37 1

FIG. 38 I

I h O T E O N BUCK MODELS AFTER AD.USTMEhT PLACE R O D P1 A-T h O - D 'I .E\ER inrlE\ \ \Em C-E S TO BE ODER&TED AT A.1 T..DES 4000 FT A\D ABOVE I

I CHOKE COIL ROD ADJUSTMENTS - TYPICAL FIG. 39 1

Delco Carburetor BULLETIN: 9D.SA RED SECTION


M O D E L S 4 M V - 4MC - M 4 M C - M 4 M E REPLACES PAGE 9 DATED JUNE 1980 &NOVEMBER 1977

NOTE: PERFORM ADJUSTMENTS I N PROPER SEQUENCE.

C*Ol/ V A L V E <OM?LETEt"

CHOKE C O l L R O D ADJUSTMENT FIG. 40

@ALIGN MARKONCOVER W$TH SPEClF iEDPOlNiON HOUSING. NOTE ON MODELSWiTH SLOTTED COlL PICKUPLEVER.MAKE SURE COIL TANG 5 INSThLLED INSLOT IN LEVER ISEE INSETr 2)

LOOSEN THREE RETAINING SCRLWS (NOTE TIGHTEN

@ R O T A T E COYER AND COIL ASSEMBLY COUNTERCLOCKWISE UNTiL CHOKE VI\LVE JUSTCLOSES

FOLLOWERON HlGHESTSTEP OF CAM

lNSET ii 2

AUTOMATIC CHOKE COlL ADJUSTMENT FIG. 4 1

@ SETMARK ON LLECTRlCCHOKE

HIGHSTEPOFCAM

ELECTRIC CHOKE SETTING FIG. 42

@.",, ."W..O 0. PtUNGtR STEM 7 0

,"%.,"LE LEVER

THIS ADJUSTMENT ISTO BE MADE ONLY AFTER: I11 RE^ PLACEMENT OF THE SOLENOID. 121 MAJOR OVERHAUL OF THE CARBURETOR 1SPERFORMED.OR I31 THE THROTTLE 8 0 0 Y IS REMOVEOAND REPLACED.

THE FOLLOWING PROCEDURE ISUSEOTO ADJUSTTHE C.E.C. VALVE CONTROLLED ENGINE SPEEDON A RUNNING ENGINE (IN "NEUTRAL" FOR MANUAL OR IN "DRIVE" FOR AUTOMATIC TRANSMISSIONSI. WITH AIR CONDITIONING OFF. DISTRIBUTOR VACUUM HOSE REMOVED ANDPLUGGED. AND FUEL TANK HOSE FROM VAPORCANISTER DISCON. NECTED. NOTE: FOR CORVETTES. REMOVE FUEL TANK GASCAP INSTEAD OF HOSE FROM CANISTER.

BEFORE PROCEEDING. FOLLOW INSTRUCTIONSON VEHICLE TUNE UP STICKER.

1. ADJUSTCURB IDLE SPEED TOSPECIFICATIONS USING IDLE SPEED SCREW.

2. MANUALLY EXTEND THE C.E.C. VALVE PLUNGER TO CONTACT THE THROTTLE LEVER AND PULL OUTWARD ON PLUNGERSTEM TO ENDOF TRAVEL.

3. T U R N PLUNGER SCREW TO ADJUST ENGINE SPEED TO CAR MANUFACTURER'S SPEClFICA7IONS:

PASSENGER T a

A I T 650-D 650-0

MIT. 850-N 850-N

'350 V 8 M I T 900-N 900-N

CAUTION: DO N O T USE THE C.E.C. V A L V E TOSET

CURB I D L E SPEED.

C.E.C. V A L V E ADJUSTMENT FIG. 43

BULLETIN: 9D-5A R E D SECTION DATE: MAY 1983

THE FOLLOWING PROCEDURE IS USED TO ADJUST THE IDLE STOP SOLENOID TOCONTROL ENGINE SPEED ON A RUNNING ENGINE. FOLLOW INSTRUCTIONS ON VEHICLE TUNE-UP STICKER BEFORE PROCEEDING:

a WlTH ENGINE ATNORMAL OPERATING TEMPERATURE AND IDLE STOP SOLENOID ENERGIZED (PLUNGER STEM EXTENDED), ADJUST PLUNGER SCREW TOOBTAIN SPECIFIED ENGINE SPEEDS.

I LOW IDLE ADJUSTMENT I

I < TOSET LOWENGINE IDLE SPEED WlTH THE IDLE STOP SOLENOID DISCONNECTED ELECTRICALLY. ADJUST IDLE SPEEDSCREW ON THROTTLE LEVER

I TO OBTAIN SPECIFIED ENGINE SPEED.

I IDLE STOP SOLENOID ADJUSTMENT I FIG. 44

2 ."...as".., ...EM.." N "N.,, P L U W r l R CO*..CIS I*.O.Til L W L . IWL"*GIR E i i E N n T D I ,*I* .URN , * 1 2 ' * U e s l .URNS /OAD.I"I .

.$l*R .D," I U II.

THROTTLE DASHPOT ADJUSTMENT FIG. 45

@SOL~NOIDENERG~ZEO - AICCONPRESlORLEI\D DISCONNECTCD A T A ' C SSiEMISSlONLAsELONVrHlCLf COMPREEEORAICON. AITTRANSMISSION iN

LEnD&nERIDJUSTMENTI

CONNlCTlON

7U.N lDLlSPElDICRCWT0 SETCURBIDLE SPEEDTO

SOLINO1D PLUNGER TO SULLY %TEND SPECIFICATIONS - AIC 0-$ I S I I IMlbSION LABEL)

A I C IDLE SPEED A D J U S T M E N T

FIG. 46

NOTE INCINEMUSTBEWARM CHOKE WIDE OPEN C A M FOLLOWIA OFFSTEPS OF Fi\STlDLlCAM

R I W TO OBTAIN EClnEDCU4810LE

P M I S I S LABEL,

aPslv IYIACIENT VICUUMTOT*E&CTUITORTOlXTENDTHE FLUNOERFULLI N O m I e Y A C V U M SOURCE ISNOTIVAIIABLE.PUSH IN ON ENDOF PLUNeER UNTILSEATED

THROTTLE LEVER ACTUATOR ADJUSTMENT (ON CAR) FIG. 47

NOTZLNOlNEMUSTIEUARM- CMOIEWIDF OPEN - C I M WLLOWIR

WULT IDLE SPEED R W T O O B I I I N ECIFIEDCURBlDLE

P.M. ISEELABTU.

MIIWULUI OPENTHO-

EO.USINGOUISIDE YICUUMIOURCS APPLISYF~C~EUT VICUUMTOTt lEACTUITO~iOSI (TENOT*E PLUNOLRNLLY.

THROTTLE LEVER ACTUATOR ADJUSTMENT (ON CAR) FIG. 47A

BULLETIN 9D-5S

DATE: NOVEMBER 1975 Delco Carburetor PAGE 1

FILE AFTER BULLETIN 9D-5A REPLACES PAGE 1 DATED NOVEMBER 1971

I TUNE UP SPECIFICATIONS I

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS "4MC" "4MV"

I I CO, WD, 131.132:16, 9X,9FRR9FD NOTE 1 : 7025220.221 - ,120. Others - .I50 PRINTED IN U.S.A.

NOTE 2: AIT ,160 SIT ,245 @ 1975 GENERAL MOTORS CDRP.

4MV

7026203 7036203

4MV

7026202 7026210 7036202 7036210

4MV

7026201 7026205 7036201 7036205

,--

4MV

7026200 7026204 7036200 7036204

CARBURETOR MODEL

CARBURETOR NO.

ADJUSTMENT SPECIFICATIONS

4MV

7025200 7025201 7025220 7025221

BULLETIN 9D-5S

DATE: NOVEMBER 1975 PAGE 2

ADJUSTMENT AND TUNE UP SPECIFICATIONS

CARBURETOR MODEL I 4MC I 4MV I 4MV I 4MV CARBURETOR NO. 7026240 7C 7026260 7027032 7027135 7027080

7026242 7C 7026261 7027036 702715 7027081

ADJUSTMENT SPECIFICA

NOTE t: Vac. Break Pin Clearance

NOTE 2. 330 Cu. In. ,130

400425 Cu. In. ,120

'Comfortron equipped: IDLE - 500-D Cornfortron On

"Fast Idle - 800-N Low Step with AIC

BULLETIN 9D.5S

Demo B Delco Carburetor DATE: NOVEMBER. 1975 PAGE 3 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 3 DATED NOVEMBER 1971

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS "4MC" "4 MV"

CO. WD, 131, 132:16,9X,9FR,9FD NOTE 1: M/T ,245. A/T ,160

N( 1203 - ,100, others ,110

N( 1203 - ,200. others ,160

'Where Applicable


CHOKE SETTING

TUNE UP SPECIFICATIONS

PRINTED IN U.S.A. @ 1975 GENERAL MOTORS CDRP.

POINT GAP

SPARK PLUG GAP

TIMING - Vacuum advanee line MUST bedisconnected and fitting plugged

.019

.035

4' BTDC @ Idle

,016

,035

2.112~ BTDC @ Idle

,016

.035

2 . 1 1 ~ ~ BTDC @Idle

,019

,035

8' BTDC @Idle

A.I.R. 4P ATDC @Idle

,019

,035

4' BTDC @Idle

BULLETIN 9D-5s

DATE: NOVEMBER. 1975 PAGE 4


NG WIND-L

KOUT ,,r 8 nm"?,#

NOTE 1: 7027211.7037211 - ,245. others - ,160

NOTE 2: 7027234.235.7037234.235 - 11 132, others 114

"See Service Bulletin 9D-98 far Idlespeed-up Control Adjustment

7027233 7037234

7027234 7037235

SPARK PLUG GAP

TIMING - Vacuum advance line MUST be disconnected and fitting plugged.

~ ~

,035 8' BTDC

@Idle A.I.R.4° BTDC

@Idle

,035 8' BTDC

@ Idle A.I.R. 4O BTOC

@Idle

,035 4-8' BTDC

@Idle

,035 4-8' BTDC

@ idle

.035 5' BTDC

8 480 RPM A.I.R. 5' BTDC

@ 550 RPM

BULLETIN: 9D-5S

Delco Carburetor DATE: NOVEMBER 1975 PAGE 5 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 5 DATED NOVEMBER 1971


VE R

I T IDLE C/

MUST be disconnected and fitting

CO, WD, 131,132:16.9X,9FR. 9FD NOTE 1: 7027240- INNER 7027241 -OUTER

PRINTED IN U.S.A. @ 1975 GENERAL MOTORS CORP.

BULLETIN 9D-5s

DATE: NOVEMBER, 1975 PAGE 6


CARBURETOR MODEL I 4M V I 4M V I 4M V I 4MV I 4MV

CARBURETOR NO. 7027262 7027263 1 7027268 7028207 7028208 1



-~

MUST be disconnected and fitting

1 I

NOTE 1: Std, ear 500-D Firebird 600-0 Ram Air (GTO & Flreblrd) A/T 650-D. M/T 1200-N

N8PE 5: Ram Air 2800-N. Others 2 5 0 0 . ~ Firebird 700-N

BULLETIN: 9D-5S DATE-APRIL 1979

Delco Carburetor PAGE 7 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 7 DATED NOVEMBER 1976



AIR VALVE SPRING WIND-UP I SEE SERVICE FIX BULLETIN 9D-210

UNLOADER . 3 M 30 3 M 3 0 2 6 0 30

AIR VALVE LOCKOUT .Dl5 3 4

THROTTLE VALVE LOCKOUT .015 36 .015 36

CHOKE SETTING Top of 39 T o p o f 39 Top of 39

CARBURETOR MODEL

CARBURETOR NO.

rod even rod wen rod wen

with with wi th

bottom bottom bottom

of hole of hole o f hole

4M V

7028210

7028216

7028218

4M V

7028209

7028211

702821 7

One rod One rod

diameter diameter

p s t " R " ~,~;."''1 1 o h 1 I

4M V

7028212


TRANSMISSION I AUTO. I MAN. I AUTO. I MAN. I AUTO. I MAN. 1 AUTO. I MAN. 1 AUTO. 1 MAN.

4M V

7028230

7028231

7028236

4M V

7028234

7028325

7028238

IDLE R.P.M. STANDARD I I 700N I 6 0 0 D 1 I 6 O O D 1 I 550D I

I CO. WD, 131, 132:16. 9X. 9FR. 9FD NOTE 1: 7028236,237,238,239 - 215. Others - ,180 PRINTED IN U S A.

01979 GENERAL MOTORS CORP.

IDLE R.P.M. A I R .

. FAST IDLE

DWELL POINT GAP

SPARK PLUG GAP

TIMING - Vacuum advancellne MUST be d l ronnwted and fitting plugged.

IDLE R.P.M. - AIRCOND. I 7 0 0 N A ICON I G M D A I C ON I GOOD A ICON I GOOD A ICOFF I GOOD A ICOFF I

2200N

30' .019

0 3 5

4' BTDC @Id le Except

396~350 HP TDC @ Idle

I

2200N

30° 0 1 9

,035

4' BTDC e Idle

Except 396-350 HP Camaro

TDC@ Idle

I

2200N

30' .019

,035

4' BTDC @Id le

1900-N

28-32' 0 1 6

.036

5' BTDC @Id le

1900N

2832' .016

,035

5' BTDC @ ld le

BULLETIN: 9D-5S DATE: APRIL 1979 PAGE: 8


ADJUSTMENT A N D TUNE UP SPECIFICATIONS

I ADJUSTMENT BULLETIN NO. I 9 D ~ 5 A I 9 D ~ 5 A I 90-5A I 9D-5A I 9D-5A

CARBURETOR MODEL ~. CARBURETOR NO.

4M V

7028240

7028242

7028248

("A" Change

and Later)

4M V

7028240

7028242

(Before "A"

Change1

ADJUSTMENT

FLOAT LEVEL

PUMP ROD LOCATION

IDLE VENT - FAST I DLE (bench)

CHOKE COIL LEVER

CHOKE ROD IFAST IDLE CAM)

AIR VALVE ROD

VACUUM BREAK ~ FRONT

VACUUM BREAK ~ REAR

I notch / 1 n t h 1 ( nmch I I notch ( I notch (

4M V

7028243

7028247

Sp-.

318

INNER

112

2Turnr

p~

AIR VALVE SPRING WlND~UP

UNLOADER

AIR VALVE LOCKOUT

THROTTLE VALVE LOCKOUT

CHOKE SETTING


. I 30

0 3 0

. I80

MUST be disconnected and f i t t ing

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS

4MV

7028244

7028245

Fig. No.

1

3

5

8

SEE SERVICE FIX BULLETIN 9 D ~ 2 1 0

I I *7028247, 248 - Float Level - 7/32

NOTE 1 A IT - .ZOO. M IT - ,215

4M V

7028246

10

14

20

SDE.

7/16'

OUTER

1 I 2

2 Turnr

1 3 0

,030

1 8 0

3 2 5

.045

Rod i n

gau ge

Fig. No.

1

3

5

8

3 2 5

A iT 0 4 5

M IT 0 1 5

Rod i n

gauge

30

34

. 39

10

14

20

3 2 5

0 4 5

Rod in

gauge

30

3 4

36

39

3 2 5

0 4 5

Rod in

gauge

Spec.

7116'

OUTER

112

2 Turns

30

34

39

3 2 5

.015

Rod in

gauge

30

34

39

,140

0 3 0

2 1 5

30

36

39

Fig. N o

1

3

5

8

10

14

20

Spec.

5116

OUTER

112

2 Turns

1 3 0

,030

NOTE 1

Fig. No.

1

3

5

8

10

14

20

S p s .

7132

OUTER

112

2 Turns

Fig. No.

1

3

5

8

. I 30

.030

,180

10

14

20

BULLETIN: 9D-5s

Delco Carburetor DATE: APRIL 1979 PAGE: 7 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 7 -- DATED NOVEMBER 1976

I NOTE 1: 7028236.237.238.239 - ,215. Others - .180 PRINTED IN USA

@ISISGENERAL MOTORS CORP

ADJUSTMENT AND TUNE UP SPEC1 FlCATlONS MODELS "4MC" "4MV"

CARBURETOR MODEL

CARBURETOR NO.

7028236 7028238

4M V

7028209

7028211

7028217

4MV

7028210

7028216

7028218

4MV

7028212

4MV

7028230

7028231

4MV

7028234

7028325

BULLETIN: 9D-5S DATE: APRIL 1979 PAGE 8

MUST be d~xonnected and fitting

ADJUSTMENT AND TUNE UP SPEC1 FICATIONS

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE AND SPECIFICATIONS

'7028247. 248 Float Level 7/32

NOTE 1 AIT - ,200. MIT - .215

4M V

7028246


4MV

7028244

7028245

4M V

7028243

7028247

4M V

7028240

7028242

7028248

["A" Change

and Later)

CARBURETOR MODEL

CARBURETOR NO

4M V

7028240

7028242

(Before "A"

Changel

BULLETIN: 9D-5s DATE: APRIL 1979 Delco Carburetor PAGE. 9 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 9 DATED NOVEMBER 1976

I TUNE UP SPECIFICATIONS


,-

TRANSMISSION AUTO.~ MAN. AUTO. / MAN. AUTO. I MAN. AUTO. I MAN. AUTO.

CARBURETOR MODEL

CARBURETOR NO

IDLE R.P.M. STANDARD

IDLE R.P.M. A.I.R.

IDLE R.P.M. -A IR COND.

FAST IDLE

01979GENERALMOTORS CORP.

-

POINT GAP

SPARK PLUG GAP

TIMING Vacuum advance tine MUST be dironnected and fining plugged.


4MV

7028250

7028251

7028252

i

5 7 5 0 1 675-N

..

DWFl 1 I I -.no I ^_O I "-0

700N Lowstep

7-s i r =mu,, @ 850 RPM

4M V

7028253

7029253

575D 1 75UN

7501'1 Low Step

a"

,016

0 3 0

7-l/Z" BTDC @ 850 RPM

4M V

7028254

7029254

750D I 750N

I

AIT 14W-N Lowstep

M,T 1000N

.nJ

,016

0 3 0

12' BTDC @ 850 RPM

4MV

7028255

7029255

I 800N

9W-N Low Step

4MV

7028260

7028261 17051906

I MAN.

500D / 600N

2800N 2600N

30'

,016

0 3 0

lZU BTDC @ 850 RPM

a'

0 1 6

.035

5' BTDC @Idle

BULLETIN: 9D-5s DATE: APRIL 1979 PAGE: 10


TRANSMISSION I AUTO. I MAN. ( AUTO. ] MAN. 1 AUTO. 1 MAN. I AUTO. ( MAN. ( AUTO. I MAN.

IDLE R.P.M. STANDARD ]NOTE 2 / 65UN ( 500D 1 6 5 0 N 1 ( 6 5 0 N I / 55UN I ,

. ~

bottom botfom bottain

4MV

7029200

7029201

7029224

of hole

I I NOTE 1: 17054905 -325; OTHERS 3 ( NOTE 2: RAM AIR 650-D. OTHERS 5 NOTE 3: 7028270. 273 - 2800-N. OTb NOTE 4: 7079200 - ,160. OTHERS -

4M V

7028282

IDLE R.P.M. A I R I 1 1 1 I 1

. - - ~ ~

' 7028270 - FIGURE 6

4M V

7028280


of hole

4M V

7028263 7028271

7028265 7028273

7028267 1028275

7028269 7028277

CARBURETOR MODEL

CARBURETOR NO

of hale

IDLE RP.M AIR COND.

FAST IDLE

4M V

7028262 7028270

7028264 7028274

7028266 7028276

7028268 17054905

NOTE 3 NOTE 3'

DWELL

POINT GAP

SPARK PLUG GAP

TIMING - Vacuum advance line

MUST bediwonnected and f i t t lng

8 W ~ N

?no 30° 30' 30'

0 1 6 0 1 9 0 1 9

0 3 5

@ Idle @Id le @Id le

240o-N

BULLETIN 9D-5S

Delco Carburetor DATE: NOVEMBER 1975 PAGE 11 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 11 DATED NOVEMBER 1971



CO, WD, 131,132:16.9X.9FR.9FD NOTE 1: 7029214 - 114,7029223 - 7/32 PRINTED IN U.S.A.

'Exeeet Corvette - Idle 750-N @ 1975 GENERAL MOTORS CORP.

BULLETIN 9D-5S





TIMING -Vacuum advance line MUST be diaonnected and fitting

NOTE 1: 7029230,231 - 114. Others - 318 Stage 1 Option - .050

BULLETIN 90-55

DATE NOVEMBER 1975

Delco Carburetor PAGE 13 - FILE AFTER BULLETIN 9D-5A

REPLACES PAGE 13

ADJUSTMENT AND TUNE UP SPECIFICATIONS DATED JANUARY 1975


MODELS "4MC" "4MV"

TRANSMISSION I AUTO. I MAN. I AUTO. ( MAN. 1 AUTO. 1 MAN. 1 AUTO. I MAN. I AUTO. I MAN.

IDLE R.P.M. STANDARD I 6 0 0 D I 700N 1 5 7 5 D / 675N 1 5 0 0 0 1 SOON I I 650D I 1 lO00N I I 650D / i l O W N

4MV

7029270

7029273


4MV

7029262

7029263

7029268

IDLE R.P.M. A.I.R.

IDLE R.P.M. - AIR COND.

FAST IDLE

DWELL

POINT GAP

SPARK PLUG GAP

TIMING - Vacuum advance line

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT NOTE 1 A/T ,190 M/T ,215 TUNE.UP PROCEDURE AND SPECIFICATIONS NOTE 2 AIT ,150 MIT ,180

4MV

7029260

7029261

MUST be disconnected and fitting plugged.

'7029250 140

PRINTED IN U S A CO, WD. 131,132 16.9X.9FR.9FD 01975 GENERAL MOTORS CDRP ,

4M V

7029250

7029251

7029252

1 600D AIC ON

620D I 720N

30'

.016

,030

TDC

4M V

7029244

7029245

_ /

i ,' /,I

@Idle

*, CARBURETOR MODEL

CARBURETOR NO.

I

700N LowStep

30'

.019

.030

8' BTDC

@ Idle

I

2800N I 2600N

32O

,019

,032

5- BTOC

@Idle

I

2300N

30'

,019

.035

9' BTDC

I

2800N

30'

,019

,035

go BTDC

@Idle @Idle

BULLETIN 90-5s



SPARK PLUG GAP

TIMING- Vacuum advance line

MUST be d i r o n n ~ t e d and fitting

plugqed.

,035

4' BTDC

@Idle


NOTE 1: 7040500, 502- ,450. OTHERS ,400 I


BULLETIN: 9D-SS

Delco Carburetor DATE NOVEMBER 1975 -- PAGE 15

FILE AFTER BULLETIN 9D-5A REPLACES PAGE 15

ADJUSTMENT AND TUNE UP SPECIFICATIONS DATED JANUARY 1975

MODELS " 4 M C "4MV"


4MV

7040240

7040247

7041242

7041540

R E F E R T O DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEDURE AND SPECIFICATIONS

CARBURETOR MODEL

CARBURETOR NO.

--

I I C0,WD. 131.132:16,9X,9FR.9FD NOTE 1: 1970-245. 1971-265 PRINTED IN U.S.A.

NOTE 2: 7040207-507 3/16": OTHERS 114". 01975 GENERAL MOTORS CORP. NOTE 3: 1970-318, 1971-13132

4M V

7040208

704051 1

FAST IDLE R.P.M. I 1500-N 2nd Step I 1500.N 2nd Step I 1500.N 2nd Step I 1950N I 650N Low Ster,

4MV

7040230

7040231

7040232

4MV

7040206

7040509

7041206

7041209

4M V

7040207

7040213

7040507

7040513

BULLETIN: 9D-5S


ADJUSTMENT AND TU

NOTE 1: 1970-318. 1971-13132

NOTE 2: 1970-,190. 1971-,200

notch notch


notch

FAST IDLE R.P.M.

notch

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNEJJPPROCEOURE AN0 SPECIFICATIONS

720-N

LOWSTEP

650N

LOW STEP

720-N

LOW STEP

650-N

LOW STEP

lW0-N

LOW STEP

BULLETIN. 9D-5S DATE: APRIL 1979

Delco Carburetor PAGE: 17 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 17 DATED NOVEMBER 1976

ADJUSTMENT SPEC1 FICATIONS


MODELS "4MC" "4MV"

CHOKE ROD IFAST IDLE CAM1

AIR VALVE ROD

V A C U U M B R E A K ~ F R O N T

\ ,AP l l l lM R R F A K R F A R

4MV

7040262

7040263

7040264

7040267

7040268

7040274

CARBURETOR MODEL

CARBURETOR NO.

-

4MV

7040270

7040273

4MC

7040253

4MC

7040252

7040257

7040258

1 7 0

0 1 5

.ZOO

THROTTLE VALVE LOCKOUT - CHOKE SETTING

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEOURE AND SPECIFICATIONS

4MC

7040255

7040256

. . . - - - . . . , . - . . . . . . - . . . . AIR VALVE SPRING WIND-UP

UNLOADER

AIR VALVE LOCKOUT


CO. WD. 131, 132:16,9X,9FR,9FD

11

14

24

Index I

7M0252

PRINTED IN U.S.A. 01979 GENERAL MOTORS CORP.

SEE SERVICE F IX BULLETIN 9 D ~ 2 1 0

F A S T I D L E R P M

2 3 0

0 1 5

.275

41

1000 N

LOW STEP

1000-N

LOW STEP

2 0 0

11

14

24

3 1

Index

1 000-N

LOW STEP

0 2 0 1 34

2 7 5

0 1 5

.325

2 0 0 1 31 1 3 0 0 .300 31

41

200LLN

3 0 2 0 0 1 31

0 2 0

2500N

11

14

24

Index

34

,100

.025

4 0 0

41

.020 1 34 1 0 1 5 1 34 1 0 1 5

10

14

20

34

Rod in

gauge

notch

1 0 0

,025

2 4 5

39

10

14

20

Rod ln

gauge

notch

39


ADJUSTMENT A N D TUNE UP SPEC1 FICATIONS

ILOADER

R VALVE L

ROTTLE V. a,, - - - -.

CARBURETOR MODEL

CARBURETOR NO.

( of hole ( ( of hole / 1 1 I 1 ( of hole ( 1

17054923


4M V

7040284

AIR VALVESPRING WlND~UP

UN

At I OCKOUT

TH 4LVE LOCKOUT - C H v n c b t I I ING

TUNE UP SPECIFICATIONS I

4MV

7040285

7040286

7040287

7040288

SEE SERVICE F IX BULLETIN 90-210

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE AND SPECIFICATIONS'

300

0 1 0

Top of

rod

wen witt.

bottom

FAST IDLE R P M.

'EXCEPT MARINE APPLICATIONS

NOTE 1: A/T 1 9 0 M /T . I40 NOTE 2: 17054908 ,325: Others .300.

4MV

7040562.

7040563

7040564

7040567

7040568 17054908

30

34

39

AIT 1850-N 2nd STEP MIT 75SN 3rd STEP

4M V

7040570

7040573

4MV

7041 200

7041202

7041 204

7041 208

7041211 7041212

3 2 5

0 1 5

T o p o f

rod

wen with

bottom

2W@N

3 0

34

39

2500 N 1500-N 2nd Step

NOTE

O l !

.300

0 1 5

Rod in

g a g e

notch

Rod ~n

gauge

notch

JY

30

34

39

,450

,015

Top of

rod

wen with

bottom

30

36

39

BULLETIN: 90-5s DATE APR - 4'?


I ADJUSTMENT SPECIFICATIONS I


MODELS "4MC" 4MV"

CHOKE S E n I N G


4M C

7041 252

7041 257

4MC

7041250

7041251

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS

4MV

7041245

7041 544

,-

I CO. WD. 131. 132:16,9X. 9FR.9FD NOTE 1: 17054917 5/16: OTHERS 114. PRINTED IN U S A.

NOTE 2: 17054917 260: OTHERS 275. a1979GENERAL MOTORS CORP. NOTE 3: EARLY SINGLE STAGE - 2 8 0 FIG. 20

LATE TWO STAGE (WITH BUCKING SPRING) 1 9 0 FIG. 23

4M V

7041 230

7041731

7041 232

CARBURETOR MODEL

CARBURETOR NO.

4MV

7041201

7041 203

7041205

7041213

105SN

LOW STEP FAST IDLE R P M

820N

LOWSTEP

1050N

LOW STEP

1350N

2nd STEP

2300N


I ADJUSTMENT SPECIFICATIONS


"KC >k I I


CARBURETOR MODEL

CARBURETOR NO.

NLOADER

IR VALVE 1

iROTTLE \i

MUST bedtrconnected and fitt ln

4M C

7041 253

WSTEP 71

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UPPROCEDURE AND SPECIFICATIONS

NOTE 1. 17054907 325, OTHERS 300 NOTE 2 AIT- 430, M/T- 370

4MV

7041262

7041263

7041264

7041271

17054907

4MV

7041267

7041 268

7041 270

7041 273

4MC

7041304

7041307

7041308

7041 309

(Service)

4MV

7041305

(Service)

Delco Carburetor BULLETIN: 9D-5S DATE: APRIL 1979 PAGE: 21 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 21 DATED NOVEMBER 1976



CARBURETOR MODEL

CARBURETOR NO

TUNE UP SPEC1 FlCATlONS

4M V

7041 306

IServlcel

TRANSFJlSSlON

IDLE R.P.M. STANDARD

IDLE R.P.M. A1.R.

IDLE R.P.M. - AIR COND.

J CO. WD. 131.13216.9X.9FR.9FD PRINTED IN USA.

01979 GENERALMOTORSCORP.

4hl V

7041310

ISewlcel

FAST IDLE

DWELL - POINT GAP

SPARK PLUG GAP TIMING Vacuum advance line MUST be dirconnected and fitting plug$2d.

4MV

7041311

7041313

IService)

AUTO.

6 5 0 ~ N

LOW STEP

30°

0 1 6

0 3 5 2%' BTDC

@Id le

MAN. AUTO. M A N

5 0 0 0 1

5 0 0 D AIC ON

4M V

7041311

iSew8cel

7W-N

LOW STEP

30°

0 1 6

.030 77~" BTDC

@ 850 R.P.M.

4hl V

7041314

7041315

(Serv~cel

AUTO. I MAN.

5 0 0 0 60C-N

6 0 0 D I 6 0 0 N

5 0 0 0 AIC ON

500D I 600N

6 0 0 D

7 W ~ N

LOW STEP

30'

0 1 6

0 3 0 7%' BTDC

@ 850 R.P.M.

AUTO. I MAN.

5 0 0 D I 6 0 0 N

60C-D I 6 0 0 N

5 m ~ D AIC ON

6 0 0 N

AUTQ. 1 MAN.

500D I 60C-N

6 0 0 0 I 7 0 0 N

7 0 0 ~ N

LOW STEP

30°

0 1 6

0 3 0 7 x 0 BTDC

@Id le

I 31~34"

0 1 6

0 3 5 ~ " B T D C

@ ldle A I R . S'ATDC

O ldle



-

NOTE 1: 7042210, 211. 910. 911 - 3/16. OTHERS - 114 NOTE 2: 7042208 - 3/16, OTHERS - 5116 NOTE 3: 17054918 ,250; OTHERS 260.

CHOKE S E T I N G Top of

rod

wen with

bonarn

of hole


40

FAST IDLE R.P.M.

Top of

rod

even with

bottom

of hole

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT T U N E 4 P PROCEDURE AND SPECIFICATIONS

1 5 W N 2nd STEP

AIT 1500~N 2nd STEP

MIT 135C-N 2nd STEP

40

1350N 2nd STEP

Top of

rod

wen with

bottom

of hole

AIT 1 5 W N 2nd STEP

MIT 1350N 2nd STEP

AIT 1 5 W N 2ndSTEP

MIT 135C-N 2nd STEP

40 Top of

rod

wen with

bottom

of hole

40 Top of

rod

wen with

bottom

of hole

40

BULLETIN: 9D-5S DATE APP - 19'9



! , . -- .- ,"


I N NO.

RVlCE F IX

4MV

7042234

7042235

7042236

7042237

7042238

4MV

7042232

- CARBURETOR MODEL

CARBURETOR NO.

4MV

7042230

7042231


4MV

7042240

7042243

7042940 17054900

F AIR VALVE SPRING WIND-UP SEE SE BULLETIN 9D 210

UNLOAOER 1 310 30 30 NOTE 2 3 0 335 30 335 3 0

AIR VALVE LOCKOUT I -30 34 34 030 34

THROTTLE VALVE LOCKOUT 015 36 015 36

CHOKE SETTING 3 ,n 39 Rod in 39 Rod ,n 39 Rod ,n 39 Rod ln 39

. ~ g e gauge gauge gauqe gauge

4MV

7042242

7042942

notch

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UPPROCEOURE Ah0 SPECIFICATIONS

NOTE 1: 7042236.9. 17054943 318: ALL OTHERS 1!4. NOTE 2: 17054943 ,325; OTHERS ,310. NOTE 3: 17054900 - ,200: OTHERS - ,215. NOTE 4: 7042243 - 1 9 5 ; 17054900 - .180: OTHERS - ,160.

notch

FAST IDLE R P.M.

I PRINTED IN U S A

a1979 GENERAL MOTORSCORP

1950N 195C-N

CO, WD, 131. 132:16,9X,9FR,9FD ,"

notch

1950-N

notch notch

AIT 70@D LOW STEP MIT 92D-N LOW STEP

A IT 7 0 0 0 LOW STEP MIT 9 2 0 N LOW STEP




CARBURETOR MODEL 1 4MV 4MC I 4M V 1 4MV 1 4MV

CHOKE S E m l N G

CARBURETOR NO.


7042244 1 7042250 7042262 7042263

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEOIIRE AND SPECIFICATIONS

FAST IDLE R P M

NOTE 1: 17054901 - ,170: OTHERS - ,100, NOTE 2: 7042250- ,230. OTHERS-.215 NOTE 3: 290; . I95 ON MODELS 7042262 & 7042264

WITH 487196 CHOKE COIL. NOTE 4: 17054947 - ,220: OTHERS - .195.

A l l 7 0 0 0 Low Step

M,T 820N LOW Step

NOTE 5: 17054947 - 325; OTHERS - ,310.

1 l O a N LowSrep 1500N 2nd Step 1500N 2nd Step 1500N 2 n d S t e ~

BULLETIN: 9D-5S DATE APR L 19-9

Delco Carburetor

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 4MV - 4MC

PAGE: 25 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 25 DATED NOVEMBER 1977


TUNE UP SPEC1 FICATIONS I

4M V

7043210

704321 1

7043212

7043213 17054919 17054928

4MV

7043208

7043215

REFER TO DECAL I N ENGINE COMPARTMENT F O h CORRECT TUNE-UP PROCEDURE A N 0 SPECIFICATIONS

CARBURETOR MODEL

CARBURETOR NO

/ NOTE: 17054928 - 5/16: OTHERS 8 114. I

4M V

7043200

7043201

7043202

7043203

7043216

4MC

7042953

CO WD 131 132 M 9 X 9FR 9FD PRINTED IN U S A 03979 GENERAL MOTORS CORP

/-

4MV

7043207

A'T l l O & N

FAST IDLE R P M

AIT SEE SEE AIT 160ON LOW

AIT SEE lGOON DECAL

STEP

SEE DECAL -

r

160CLN SEE

DECAL hl1T / SEE

130ON I DECAL

1600N OECAl SEE

DECAL MIT

160ON

DECAL LlrT

1300N hlrT

1300N SEE

DECAL


ADJUSTMENT SPECIFICATIONS I

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 4MV


CARBURETOR MODEL

CARBURETORNO

REFER TO DECAL I N E N G I N E COMPARTMENT FOR C O R R E C l TUNE-UP PROCEDURE A N 0 SPECIFICATIONS

4MV

7043230

7043234

FAST IDLE R P M

I NOTE 1 7043230 OUTER HOLE. 7043234 INNER HOLE

NOTE 2 CALIFORNIA APPLICATION - OUTER HOLE. NON~CALIFORNIA APPLICATION INNER HOLE.

4MV

7043232

7043235

1900N HlGH STEP

NOTE 3: 7043232-,200; 7043235 ,215

NOTE 4. 7043243 ,195"; OTHERS 1 W '

4M V

7043233

SEE DECAL

4M V

7043240

7043241

7043243

1900N HlGH STEP

4MV

7043242

SEE DECAL

1900N H lGH STEP

SEE DECAL

A I T 7 0 0 0 M I T

9 2 0 N

SEE DECAL

AIT 7 0 0 0 MIT

9 2 0 N

SEE DECAL

BULLETIN: 9D-5s DATE: APRIL 1979

Delco Carburetor - - -

PAGE 27 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 27 DATED NOVEMBER 1977

ADJUSTMENT SPECIFICATIONS -

7

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 4MV - 4MC


REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEDURE A N D SPECIFICATIONS

4MC

7043253

7043254

4MC

7043250 7044280 7043251 7044281

7043252 17054934

7043255 17054938 7043256 7043257-

I-

CO. WD, 131, 132:M.9X.9FR.9FD '

NOTE 1: 7044280281 .230"; OTHERS ,200" NOTE 2: 7043253 275; 7043254 2 1 5

4MC

7043259' 7043282.

4MV

7043245 CARBURETOR MODEL

CARBURETOR NO

PRINTED IN U S A @1979GENERALMOTORS COUP.

4M V

7043244

7043246

7043248

'AIR VALVE SPRING WIND-UP 7043257 %TURN: 7043259 - 7043282 1:, TURN

SEE DECAL

lOOGN TOOON 8 2 0 N SEE DECAL

FAST IDLE R.P.M. SEE DECAL

A I T 7 0 0 0 M IT

9 2 0 N SEE

DECAL SEE

DECAL

7043253 l l O O N

7043254 1OOON

BULLETIN: 90-55 DATE: APRIL 1979 PAGE: 28

ADJUSTMENT AND TUNE UP SPEC1 FlCATlONS MODELS 4MV -4MC


CARBURETOR MODEL

CARBURETOR NO

CHOKE SETr ING

of hole

I TUNE UP SPECIFICATIONS --

I

SEE SEE SEE I SEE SEE

1500N DECAL 1500N DECAL 1500N DECAL 1500N DECAL 160@N DECAL I

4MC

R E F E R T O DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE A N 0 SPECIFICATIONS

7043270

7043273 17054910

7043262

7043264

7043266

1 NOTE: 17054910-913 ,325; OTHERS. 310.

7043263

7043265 17054913

4MC

7043272

7043274

4MV

7043507

K ~ REAR - I I N G WIN -

Delco BULLETIN: 9D-5s DATE: APRIL 1979 Carburetor PAGE: 29 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 29 DATED NOVEMBER 1976

ADJUSTMENT A N D TUNE UP SPECIFICATIONS MODELS"4MC""4 MV"

ADJUSTMENT SPECIFICATIONS -



/

I CO. WD, 131.132:16,9X. 9FR. 9 F D PRINTED IN USA.

01979 GENERAL MOTORS CORP.

-

FAST IDLE R P M 1 7 0 0 N SEE DECAL

1 6 0 0 N SEE DECAL



ADJUSTMENT A N D TUNE UP SPECIFICATIONS


CARBURETOR MODEL

CARBURETOR NO

R E F E R T O DECAL I N ENGINE COMPARTMENT FOR CORRECl TUNE-UP PROCEDURE AND SPECIFICATIONS

4M V

7044226

7044526

7044527 17054929

FAST IDLE R.P M.

I I NOTE 1: 17054929 716: OTHERS 314. NOTE 2: 7044233 9132: 17054946 5/16; OTHERS 114. NOTE 3: 7044233 OUTER HOLE: OTHERS INNER HOLE. NOTE 4: 17054946 ,325: OTHERS ,300.

4MV

7044230

7044233

7044530 17054946

1600N

4MV

7044232

7044532

SEE

DECAL

4M V

7044234

1200N

2nd

STEP

4M V

7044235

SEE

DECAL

1200N

2nd

STEP

SEE

DECAL

1200N

2nd

STEP

SEE

DECAL

1200N

2nd

STEP

SEE

DECAL

:AK - REAl

PRlNG WIN

Delco Carburetor

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS " 4 M C "4MV"



FAST I OLE R.P.M.

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEOURE AN0 SPECIFICATIONS

NOTE 1: 17054935 250: OTHERS .230. NOTE 2: 17054935 ,250; OTHERS .ZOO.

CO. WD. 131. 132:16.9X,9FRR9FD PRINTED IN U S A 01979 GENERAL MOTORS CORP.

BULLETIN 9D-5S DATE: APRIL 1979 PAGE: 32

ADJUSTMENT A N D TUNE UP SPEC1 FICATIONS

CARBURETOR MODEL I 4MC I 4MC I 4M C I 4MC M4MC CARBURETOR NO. 1 7044262 17044266 7044276 1 7044269 7044272 I 7045183


SECONDARY OPENING - 38

CHOKE SETTING Index 41 Index 41 l r l u z ~ - 1 Index 41 2N R 4 1 - 7044276

1NR


REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEOURE AND SPECIFICATIONS

FAST IDLE R.P.M.

NOTE 1: 7044267 - 7044272 3/8: 7044274 9/16: OTHERS 112 NOTE 2: 7044269-7045183-17054912 112: OTHERS 314. NOTE 3: 17054911-912 ,325: OTHERS .300. NOTE 4: 7044269-17054912 1500-P: OTHERS 2000-P.

150C-P SEE

DECAL

1500P SEE

DECAL

NOTE 4 SEE

DECAL

1 5 W P SEE

DECAL

900P

LOW

STEP

SEE

DECAL

.EVER

FAST IDLE

OD

DATE: NOVEMBER 1976

Delco Ca;rburetor PAGE. 33 FILE AFTER BULLETIN 90-5A REPLACES PAGE 33 DATED NOVEMBER 1976

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS " 4 M C "4MV"

CAM)

ADJUSTMENT SPEC1 FICATIONS


FAST IDLE R.P.M.

REFER TO OECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UPPROCEDURE AN0 SPECIFICATIONS

PRINTED IN U.S.A. O 1976 GENERAL MOTORS CORP.

BULLETIN: 9D-5s DATE: NOVEMBER 1976

PAGE 34



1 TUNE UP SPECIFICATIONS I

M4MC

7045240

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE AN0 SPECIFICATIONS

'MEASURED ATUPPER EDGE OF CHOKE VALVE.

NOTE 1: 7045224.200; 7045228.180". NOTE 2: 7045225 11/32": 7045229- 15/32", NOTE 3: 7045193 7/16": 7045230 15/32".

M4MEA

7045193

7045230

4MV

7045225

7045229

SEE

M4MC

7045224

7045228

- CARBURETOR MODEL

CARBURETOR NO

18WP

M4MC

7045218

7045219

SEE 1200.P

2nd

DECAL DECAL

SEE

DECAL DECAL DECAL

16WP STEP

SEE

16WP SEE FAST IDLE R.P.M.

16WP

BULLETIN: 9D-5s DATE: APRIL 1979

De' $20 PZl Delco Carburetor




CARBURETOR MODEL

CARBURETOR NO.

VACUUM BREAK - FRONT 1 1 3 0 1 26 1 1 9 0 1 26 1 190 1 26 1 2 1 5 1 24 1 . I50 1 26

M4MC

7045244

7045246

ADJUSTMENT BULLETIN NO.

ADJUSTMENT

FLOAT LEVEL

VACUUMBREAK-REAR 1 . 1 1 5 1 28 1 140 1 "O I '"" I I I 7'2" I 19

AIR VALVE SPRING WIND-UP 1 314 1 35 1 112 ] 35 1 314 1 35 1 314 1 35 NOTE 1 35

UNLOADER 1 2 3 5 32 1 ,230 1 32 1 2 3 0 1 32 3 0 0 1 31 1 2 3 0 1 32


M4MC

7045250

PUMP ROD LOCATION OUTER 3 INNER/ 3 INNER 3 INNER^ 3 INNER^ 3

9 D ~ 5 A

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEOURE A N 0 SPECIFICATIONS

M4MC

7045251

S p g

-

NOTE: 7045268 7/16 TURN: OTHERS 112 TURN.

CO. WO. 131. 13216.9X. 9FR. 9FD PRINTED IN U S A . 01979GENERAL MOTORS CORP.

Fig. No.

9DXjA

4MC

7045254

7045282

7045554

318 1 1

Spec.

M4MC

7045261

7045263

7045264

Fig. No.

90-5A

FAST IDLE R P M

15132 1 1

Spec.

900P LOW STEP

Fig. No.

9D-5A

1800P

90-5A

15132 1 1

Spec.

SEE Y)ECAL

SEE DECAL

Spec. Fig. No. Fig. No.

114 1 1

900P LOW STEP

17/32 1 1

SEE DECAL

900P LOW STEP

SEE DECAL

BULLETIN: 90-55 DATE: APRIL 1979 PAGE: 36

- -. ADJUSTMENT AND TUNE UP SPECIFICATIONS

CARBURETOR MODEL M4MC M4MC M4MC M4MC M4MCA

CARBURETOR NO. 7045269 7045285 7045287 7045294 7045337

7045286 7045338

7045288 7045339


ADJUSTMENT BULLETIN NO. - ADJUSTMENT

FLOAT LEVEL

PUMP ROD LOCATION

PUMP ROO

BOWL VENT

I I I I I I I I I I


SECONDARY OPENING

CHOKE SETTING

REFER TO OLLHL IN ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEDURE A N 0 SPECIFICATIONS

9D-5A

-

Index

FAST IDLE R.P.M. SEE 1800 N

DECAL

Spec.

17132

INNER

9/32

Fig. No.

1

3

4

9D-5A

38

41

1600P

Spec.

15/32

INNER

9132

Fig. No.

1

3

4

9D-5A

- Index

SEE

DECAL

Spec

9132

INNER

9132

1600P

Fig. No.

1

3

4

9 D ~ 5 A

38

41

Spec.

15132

INNER

9 1 q

9D-5A

Fig. N o

1

3

4

Spec.

15132

INNER

9132

-

Index

Fig. N o

1

3

4

38

41

-

Index

38

41

-

Index

38

41

BULLETIN: 9D-5S DATE: APRIL 1979

Delco Carburetor

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 4MV - 4MC - M4MC - M4ME


CARBURETOR MODEL

CARBURETOR NO.

7045503 7045517

11143463 7045504

7045506

DJUSTM' A ENT SPECIFICATIONS

FAST IDLE R P M

507

2NL

1 REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT 1

1 1 I i

NOTE 1 7045483~484 190". 7045485 200 ' TUNE-UP PROCEDURE A N D SPECIFICATIONS

NOTE 2 7045483 1/2 TURN. 7045484485 3/4 TURN NOTE 3: 7045504 ,180". OTHERS ,190" NOTE 4: THROTTLE DASHPOT ADJUSTMENT F I G . 45 ' ON SECONDSTEP.


CO. WD. 131.132M.9X.9FR.9FD PRINTED IN U S A . 01979 GENERAL MOTORS CORP.


MOC ADJUSTMENT AND TUNE UP SPECIFICATIONS

)ELS 4MV - 4MC - M4MC - M4ME

CARBURETOR MODEL lMCA I M4MC I M4MCA I M4MCA I 4MV CARBURETOR NO. 1 7045544 1 7045550 1 7045562 1 7045568 1 7045583 1



REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECl TUNE.UP PROCEDURE AND SPECIFICATIONS

FAST IDLE R.P.M.

I NOTE 1: THROTTLE DASHPOT ADJUSTMENT FIG. 45. NOTE 2: 7045550 1/2TURN: 7045551 314 TURN. NOTE 3 : 7045566 160" ; OTHERS ,150"

' ~ ~ I C A S I . ~ C D A T JPPFQ CUGE OF CHOKE VALVE "1)El:EL T t r70TT . E STOP SET1 NG ISM) RPhl h h E J T H A L . F G 47

1800P NOTE 1

SEE

DECAL

SEE

DECAL

9WP

LOW

STEP

1800P

SEE

DECAL

SEE

DECAL 1 8 W P

SEE

DECAL

1600P "

Delco Car~uretor


BULLETIN: 9D-SS DATE: APRIL 1979 PAGE: 39 FILE AFTER BULLETIN 9D-5A REPLACES PAGE 39 DATED NOVEMBER 1977




Note: Throttle Dashpot Adjustment Fig. 45. 'DeceI Throttle Stop Setting: 1500 R P M ~n Neutral. Fig. 47.

FAST I D L E R.P.M.

C O , W D , 1 3 1 , 1 3 2 : M . 9X . 9FR. 9FD PRINTED IN U S.A. 01979GENERAL MOTORS CORP

160SP SEE

DECAL

1800-P Note

SEE

D E C A L

1500-N 2nd Step

SEE

DECAL

1 6 0 0 ~ P 1 6 0 0 P SEE

DECAL

SEE

DECAL

BULLETIN: 9D-5S DATE: APRIL 1979 PAGE. 40

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS4MV -4MC - M4MC - M4ME


CARBURETOR M O D E L

CARBURETOR NO

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE.UPPROCEDURE AND SPECIFICATIONS

NOTE 1 NEEDLE SEAT W I T H GROOVE A T UPPER EDGE-FLOAT L E V E L 5116'

M4MC

17056203 17056207 17056503 17056507

NEEDLE SEAT WITHOUT GROOVE A T UPPER EDGE-FLOAT L E V E L 7/16" NOTE 2. 1705621 1 ,170". OTHERS ,185".

'M~:arured A t Upper Ediir: Of Choke Valve

M4MC

17056208 17056508

M4MC

17056209 17056509

M4MC

17056210 1705621 1 17056226

4 M V

1705621 2 1705621 7

BULLETIN: 9D-SS DATE: APRIL 1979




~ ~

~ ~


I I I I I I I I I I

M4ME

17056230 17056232 (M4MEAI

M4ME

17056221

'AIR CONDITIONING "OFF"

CO. WD. 131.132 16.9X.9FR.9FD PRINTED IN U S A

01979 GENERALMOTORS CORP

M4MC

17056240

M4MC

17056219 17056519

CARBURETOR MODEL

CARBURETOR NO.

FAST IDLE R P M

M4MC

17056218 17056518

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE A N 0 SPECIFICATIONS

1600P SEE

DECAL 1600 N SEE

DECAL 1600-P SEE

DECAL

1400 N* 2nd Step

SEE DECAL 1800-P

SEE DECAL




ADJUSTMENT AND TUNE UPSPECIFICATIONS

CARBURETOR MODEL

CARBURETOR NO

REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE.UP PROCEDURE AND SPECIFICATIONS

FAST IDLE R.P.M.

NOTE 1: 17056266 130"; OTHERS ,125". NOTE 2: 17056263 - 518 TURN: OTHERS 1I2 TURN.

M4MC

17056244 17056246

SEE DECAL

M4MC

17056250 17056253 17056258 17056259 17056550 17056553

SEE DECAL

M4MC

17056251 17056252 17056255 17056256 17056257

1800.P

M4MC

17056262 17056264 17056266 17056274 17056568

M4MC

17056263 17056562 17056566

SEE DECAL

AIT 180QP MIT 1800~N

SEE DECAL

BULLETIN: 9D-5S

Delco Carburetor RED SECTION DATE: MAY 1983 PAGE: 43

REPLACES PAGE 43 DATED APRIL 1979

4 NO.


L

D-UP


CARBURETOR MODEL

CARBURETOR NO

1400-N

FAST IDLE R.P.M. SEE L 1600-P

DECAL Note

M4MC

17056286 (Canada]

M4MC

17056281 17056282 17056283 17056284

REFER TO DECAL Ihr ENGINE COMPARTMENT FOR CORRECT TUNEUPPROCEOURE AND SPECIFICATIONS

I Note 1: 17056283-284 Float Level 5116": Others 15132". Note 2: Refer to Marine Manufacturer's Spec,ficationr.

.Decel Throttle Stop SeTting: 1400 RPM i n Neutral. Fig. 47. "Air Conditioning "Oft'

M4ME

17056530

4MC

17056287

M4MC

1705651 2 17056517

BULLETIN: 90.5s RED SECTION DATE: MAY 1983 PAGE: 44

ADJUSTMENT AND TUNE UP SPEC1 FlCATlONS


REFER TO DECAL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEOURE AND SPECIFICATIONS

[\tote 1 17056552 200" ; Others 190" Note 2. Vacuum Break Setting 160"; u f t e r 22,500 Miles. Reset To ,245"BottomEdgeaf Valve

'800-P SEE DECAL :GAL

800-P Low Step

FAST IDLE R.P.M. SEE DECAL

1800-P 18WP SEE DECAL

Delco Carburetor PAGE: 45



MODELS 4MV - 4MC - M4MC - M4ME

BULLETIN

. -. -. .

- CARBURETOR MODEL 4MC

CARBURETOR NO 57209

I

CATION:

1600 P SEE

FAST IDLE R P M SEE SEE SEE

L 17057211 DECAL DECAL 1600P

DECAL 1300 DECAL

1300 N


M4MC

17055199 17057210 1705721 1 17057228

REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS

Note 1. 17057228 13132"; Otherr 15/37' . Note 2 . Vacuuln Brcsk Setttng 180": After 22.500 Msler. Reset to 275" Bottoln Edge o f Valve Note 3 17057218-222 160" ; Otherr 165".

4hlV

17057213 17057215 17057216

M4MC

17057218 17057222 17057518 17057522

M4MC

17057219 17057519


REFER TO DECAL I N ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE A N 0 SPECIFICATIONS

Note 1: 17057231 17/32: 17057233 13/32. Note 2: 17057236 .140; Others ,120. Note 3: 17055505 ,140; Others ,120. 'Air Conditioning "OFF".

Delco Carburetor

ADJUSTMENT AND TUNE UP SPECIFICATIONS MODELS 4MV-4MC-M4MC-M4ME

BULLETIN: 9D.5S RED SECTION

DATE: MAY 1983 PAGE: 47



FAST IDLE R.P.M.

REFER TO LABEL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SEClFlCATlONS

'AIR CONDITIONING "OFF'

1400-P' 2ND

STEP

SEE LABEL 1550-P

SEE LABEL 1550-P

SEE LABEL

900-P LOW STEP

SEE LABEL

900-P LOW STEP

SEE LABEL

BULLETIN: 9D-5s R E D SECTION DATE: MAY 1983 PAGE: 48


3 Turns 2

TUNE UP SPECIFICATIONS I FAST IDLE R.P.M. -

REFER TO LABEL IN ENGINE COMPARTMENT FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS


9D-5A C^^^ I C .

4MV

17057282

M4MC

17057262 17057263 17057266 17057274

'REFER TO MARINE MANUFACTURER'S PECIFICATIONS.

4MV

17057283

M4MC

17057259

CARBURETOR MODEL CARBURETOR NO

M4MC

17057257 17057258 17057552 17057555 17057559


Delco Carburetor


~~-~ ~

DATE: MAY 1983 PAGE: 49 . ..


I ADJUSTMENT SPECIFICATIONS 1

CARBURETORMODEL 1 4MV 1 4MV

CHOKE COIL LEVER

4MC 17057292 CARBURETOR NO.

ADJUSTMENT BULLETIN NO.

ADJUSTMENT

FLOAT LEVEL

PUMP ROD LOCATION

I""'"""'"""*"' AIR VALVE ROO

4MV

17057295 17057298 17057299

17057284

REFER TO LABEL IN ENGINE COMPARTMENT.FOR CORRECT TUNE-UP PROCEDURE AND SPECIFICATIONS

M4MC

17057502 17057504

17057287 17057290

-

9D-5A

rUNE UP SPECIFICATIONS

'REFER TO MARINE MANUFACTURER'S SPECIFICATIONS. NOTE 1: 17057287 3/4; 17057290 1/2. NOTE 2: 32' 17057290 ONLY.

Spec. 114

FAST IDLE R.P.M.

hOTE 3 1'057295 3 8 17057298 1 2 1705'299 314 hOTE 4 VACI),M BREAd SETT hG 165 AFTER 22 500 M LES

RESET TO 260 BOTTOM EDGE OF VALVE

Fig. No. 1

INNER

9D-5A

PUMP ROD - 4 9/32 9/32 4 9/32 4 ~ lnw onn

9D-5A

Spec. I Fig. No.

114 1 1 3

Spec. 114

-

Fig. No.

1

INNER INNER[ 3 3

-

9D-5A

Spec. 114

9D-5A

-

Fig. No. 1

INNER

Spec.

15/32

3

Fig. No. 1

INNER

-

3

1600.~ SEE

LABEL


GAUGE NOTCH

FAST IDLE R.P.M.

TUNE-UP PR

Delco Carburetor


BULLETIN: 9D.SS RED SECTION

DATE MAY 1983

'If Idle Mixture Adjustment is Required, A New Propane Enrichment Method Is Necessary (See Bulletin 9D-1978A, Product Information Section).

Note 1: 17057582-584.17058464 15/32; Others 7/16. Note 2: Vacuum Break Setting ,180; After 22,500 Miles, Reset to ,275 Bonom Edge of Valve. Note 3: 27'; Reset to 30' at 30.000 Miles and Above. Note 4: 30'; Reset to 33'at 30,000 Miles and Above.

PAGE: 52




'If Idle Mixture Adjustment Is Required. A New Propane Enrichment Method Is Necessary (See Bulletin 9D-1978A. Product Information Section).

4MV

17058229 17058529

-

CARBURETORMODEL

CARBURETOR NO.

NOTE 1 17058213.215 22'. OThERS 26-112' NOTE 2 17058213-215 40'. OTHERS 43' hOTE 3 17058219 28-1 2 OTHERS 27

. M4ME 17058230

4MV

17058213 17058215 17058513 17058514 17058515

4MV

17058212

-

SEE LABEL

NOTE 4: 17058229 22": 17058529 25-

M4MC 17058218 17058219 17058222

1400-P 2ND

STEP SEE

LABEL

1700-N CALIF. 1600-N

FAST IDLE R.P.M. 1700-N CALIF. 1600-N

SEE SEE LABEL LABEL

1700-P OR

1700-N SEE

LABEL

Delco Carburetor

BULLETIN: SD.5S RED SECTION

DATE: MAY 1983 PACE. 6'2 , . ,--. ""


If Idle Mixture Adjustment Is Required. A New Propane Enrichment Method Is Necessary (See Bulletin 9D-1978A. Product Informatton Section).

Note 1: 17058246 Outer; Others - lnner. Note 2: 17058246 318; Others 9/32. Note 3: 17058246 23O; Others 2i0. Note 4: 17058540,17055580 lgO Others 23O. Note 5: 17058259 19'; Others isd, Note 6: 17058259 24O; Others 23O.

PAGE: 54


NO^^: 17058263 40°: Others 38'.

~

M4MC 17058272


M4MC 17058264 17058266 17058274 17058276 17058278

M4MC 17058395 17058263 17059263

M4MC

17058257 17058258 17058553 17058555

CARBURETOR MODEL CARBURETOR NO.

M4MC 17058254

Delco Carburetor




*Refer to Marine Manufacturer's Specifications. Note 1: 28': Reset to 31° at 30.000 Miles and Above. Note 2: 17058503-506-508-398-466 Inner; Others - Outer. Note 3: 17058503-506-508-398-466 9/32": Others 11 132".

BULLETIN: 9D-5s RED SECTION DATE: MAY 1983 PAGE: 56


I I

If Idle Mixture Adjustment Is Required. A New Propane Enrichment Method Is Necessary (See Bulletin 9D-1978A. Production Information Section).

~~~ -

NOTE: 30"; Reset To 33' At 30.000 Miles And Above.

M4MC

17058582 17058584


M4MC

17058559 4MV

17058525 M4MC

17058468 17058518 17058519 17058522 17058523 17058524 17058527 17058528

CARBURETOR MODEL CARBURETOR NO.

M4MC

17058512

Delco Carburetor

BULLETIN: 9D.SS .- -- RED SECTION




CARBURETOR MODEL I M4MC 1 4MV M4MC I 4MV M4MC CARBURETOR NO. 17054904 17054909 17054914 17054916 17054922

17054915

Al ZIFICATIONS

ADJUSTMENT BULLETIN NO. k ! I 9D-5A 9D-5A 9D-5A

I

INT SPE(

I


NOTE 17054914 112 Turn. 17054915 7116 Turn

FAST IDLE R.P.M. 1800-P

SEE

LABEL

1500-N 2ND

STEP

SEE

LABEL 1800-P

SEE

LABEL 2400-N - 1600-P

SEE

LABEL




4MC CARBURETOR MODEL


4MV M4MC

'Decel Throttle Stop Setting: 17054931 1500 RPM 17054933 1400 R P M In Neutral, Fig. 47.

M4MC I M4MC 17054933 CARBURETOR NO.

1100-N LOW STEP

SEE

LABEL

17054937 17054931 17054924

SEE

LABEL

17054932 (CANADA)

SEE

LABEL 1600-P

1600-P SEE

LABEL FAST IDLE R.P M

SEE

LABEL 1600-P

1600-P

E LOCKOUT SING UlNG

D e l c o Carburetor





NOTE 1: 7046611 3/16"; 7046612 5/16" NOTE 2: 7046611 ,240 ; 7046612 180".


CARBURETOR MODEL

CARBURETOR NO,

~~~~~~~

17059227 1

I I I I I I


M4MC

17058292

I

17059076 17059077 17059226

ADJUSTMENT SPECIFICATIONS I ADJUSTMENT BULLETIN NO.


17059222 17059282 17059284

M4MC

17059061 17059065 17059066 17059068 17059069

9D-5A

'Refer To Manufacuturer's Specifications. "1600-N 6.6 Llter M IT Truck.

9D-5A

NOTE: 17059216.222 28': OTHERS 27'

M4MC

17059062 17059064

9D-5A

ADJUSTMENT

FLOAT LEVEL

PUMP ROD LOCATION PUMP ROD

9D-5A

FAST IDLE R.P.M.

9D-5A

SEE LABEL

SEE LABEL

M4MC

17059201 17059205 17059206 17059208 17059209

Spec.

15132 INNER

9/32

AIT 1600-P

MIT 1300-N

1600-P SEE LABEL

M4MC

17059203 17059207 17059216 17059217 17059218

Spec. 15132

INNER 114

Spec. 15132

INNER 9/32

Flg. No. 1

3 4

SEE LABEL

AIT 1600-P MIT" 1300-N

AIT 1600-P MIT" 1300-N

Fig. No

1

3 4

Flg. No.

1

3 4

Spec. 15132

INNER 9132

SEE LABEL

Fig. No. I Spec.

3/32

4NER 114

Fig. No. 1 . 3 4

Delco Carburetor

BULLETIN: 9D.SS RED SECTION




FRONT REAR

CARBURETOR MODEL 14MC CARBURETOR NO. 359210

11059211 17059228


M4MC I M4MC M4ME

17059230 17059212 17059512

M4ME

17059232 17059530 17059532

1705921 3 17059215 17059229 17059513 17059515 17059529

BULLETIN: 9D.5S RED SECTION DATE: MAY 1983 PAGE: 62


OUTER zj

SEE SEE 900-P SEE 900-P SEE , SEE

FAST IDLE R.P.M. 0-P 1550-P LOW LOW

I LABEL LABEL STEP LABEL STEP LABEL LABEL


4MV

17059264 17059290 17059294 17059295

'Refer lo Marine Manufacturer's Specifications. J


M4MC

17059256 17059258

Note 1: 17059242 15°;Otherr 21'. Note 2: 17059242 13"; 17059540643,,'23~; 17059247 18'; 17059548,17066975 15"; Others 21'. Note 3: 17059540-543.17058469 38 ;Others 30 . Nofe 4: 17059241 21-1/2°; Others 20'. Note 5: 17059241 20-1/2~; Others 19". Note 6: 17059264 114; Others 5/16.

M4MC

17059250 17059251 17059253 17059259

M4MC 17059241 17059247 17059249 17065994

CARBURETOR MODEL

CARBURETOR NO.

M4ME 17058469 17059240 17059242 17059243 17059540 17059543 17059544 17058546 17059547 17059548 17066975

Delco Carburetor

BULLETIN: 9D.S RED SECTION

DATE: MAY 1983 PAGF. 63 . . . - -. . -



-REAR

G WIND-UP

., ,-

E LOCKOUT

SING YlNG


BJUSTMENT SPECIFICATIONS

4ME

17059283 17059298

M4M 17059 17065

I

CARBURETOR MODEL I M4MC 4MV 17059285 17059286 17059293

CARBURETOR NO.


17059271

I 'Refer To Marine Manufacturer's Specifications. 1 ~- ~ Note 1: 17059293 9/16; Others 112.

Note 2: 17059272 14-1/2°;17065791 20'. Note 3: 17059272 33': 17065791 35'.

SEE

LABEL

FAST IDLE R.P.M. SEE

LABEL 2000-N

SEE

LABEL 2200-P

SEE

LABEL

SEE

LABEL

BULLETIN: 9D.5S RED SECTION DATE: MAY 1983 PAGE: 64


I ,"OJJ"<

1705950t

IONS

CARBURETOR MODEL

CARBURETOR NO.

TUNE UP SPECIFICATl0n.c. I AIT

FAST IDLE R.P.M. SEE SEE 1600-P SEE LABEL LABEL M I T " LABEL

I 1300-N

4MV

17059287 17059288 17059289 17059291

REFER TO LABEL IN ENGINE COMPARTMENT FOF TUNE-UP PROCEDURE AND SPEClFlCATlC

'7059292

I CORRE )NS

'Refer To Marine Manufacturer's Specifications. "1600-N California Truck Applications.

DJUSTMENT SPECIFICAT

M4MC

17059501 17059520 17059521

4MC

17059296

3

NOTE 1 1705(128920 OTnERS !9 \OTE 2 1-059287 3 4 17059286 1 2 OTrlERS 318

A

M4MC

17059363 17059366 17059366 17059503 .-*?-?-,.

M4MC

17059377 17059378 17059527 17059528

Delco Ca retor





NOTES

Delco Carburetor BULLETIN 90 5T

DATE NOVEMBER 1971 PAGE 1 of 5 FILE AFTER BULLET lN9D 5 S

ALWAYS CHECK FIRST --- Hear R i e i , Intake Man~fo ld Bolts

TROUBLE -SHOOTING 1 Comprerson. ign8tron System, Fuel Pump Pressure and Volume, CrankcBse Vent System Vacuum

THE

Hores.and Emission Control I ' I QUADRAJET 4 MC - 4 MY CARBURETOR Synpmi tar Pinper Operatmn.

ENGINE CRANKS - NO START

-

CHECK AUTOMATIC

NOT UNLOADING ADJUSTMENT

CHECK FOR INOPERATIVE C.E.C. VALVE (IF USED)

CHECK COLD OVERRIDE CHECK 15 SEC TIME DELAY RELAY (IF USEO)

I 1 1 USE PROPER CORRECT STARTING

USE PROPER STARTING CORRECT STARTING

CHECK THROTTLE CHECK FOR BINDING OR STRUCK CHOKE

FUEL LINES OR FILTERS

VALVE OR LINKAGE IW.0. THROTTLE)

CHECK FLOATNEEDLE CHECK AND ADJUST CHOKE DEFECTIVE FUEL

AN0 SEAT FOR LEAKAGE RODS. VACUUM BREAK PUMP,RUN PRESSURE AND VOLUME TEST

I I

STARTING PROCEDURE

CHECK FLOAT ADJUSTMENT OR FLOAT ALIGNMENT - i CHECK FLOAT NEEDLE

FOR STICKING IN SEAT, OR BINDING FLOAT.

I -

FLOODED NOT CLOSING IN CARBURETOR NO START COLD

PROCEDURE USE0 STILL NO START

'C.E.C. - COMBINED EMISSION CONTROL VALVE

CO, WD, 131. 132:16,9X. 9FR. 9FD Quadrajet l 4 b b l . l Carburetor PRINTED I N U.S.A. a 1971. GENERAL MOTORS CORP.

PROCEDURE PROCEDURE USED STILL NO START

Delco Carburetor BULLETIN: 9 D d T

DATE: NOVEMBER 1971 PAGE 2 of 5

F I L E AFTER B U L L E T I N 90-55

TROUBLE -SHOOTING

THE

QUADRAJET 4 MC - 4 MV CARBURETOR (CONT'D.)

CO. WD, 131, 132:16. 9X. 9FR. 9FD Q u a d r a p t 14 bb1.I Carbure tor P R I N T E D IN U.S.A. Gl 1971 . G E N E R A L M O T O R S CORP.

ENGINE STALLS

CHECK C.E.C. VALVE OPERATION (IF USE01 P

I STALLING COLD STALLING HOT

I I CHECK IOLE SPEED

CHECK THROTTLE CHECK IDLESPEED OASHPOT (WHERE USED)

CHECK COLD OVERRIOE SWITCH (IF USED)

CHECK C.E.C.VALVE TIME DELAY RELAY (IF USE01

I 1 I I P

CHOKE COIL AOJUSTED FUEL LEVEL CHOKE COIL INCORRECTLY HIGH IN FUEL LEVEL

CORRECTLY STALLING ADJUSTED FLOAT BOWL O.K.

CONTINUES

FUEL PUMPPRESSURE HOT IOLE COMPENSATOR

FAST IDLE SPEEO HIGH.TEST FUEL PUMP

NOT OPENING OR CLOSING IIF USED)

CHECKCHOKEVALVE STILL STALLS AFTER SECONDARY

AN0 LINKAGE FOR START ADJUST VACUUM BINDING OR STICKING BREAK DIAPHRAGM ,

SECONDARY THROTTLE VALVES STICKING OPEN GASKETS NOT SEALING

CAUSING AIR OR FUEL

IF UNABLE TO AOJUST. CHECK IOLE SYSTEM FOR DIRT. AIR LEAKS, TO SPECIFICATIONS PLUGGEO PASSAGES IDLE PASSAGES

PLUGGE0,IOLE AIR BLEEDS PLUGGED OR MISSING

TEST FUEL CARBURETOR FLOODING

PUMP OR HlGH FUEL LEVEL

CHECK FOR DIRTY OR LEAKING FLOAT NEEOLE

CHECK FOR LEAKING. CHECK AND ADJUST LOADED OR MISALIGNED FLOAT

FLOAT

Delco Carburetor BULLETIN: 9D4T

DATE: N O V E M B E R 1971 P A G E 3 of 5 F I L E A F T E R B U L L E T I N 9D-5S

TROUBLE -SHOOTING

THE


ENGINE HESITATES ON ACCELERATION -

I

I PUMPCIRCUIT DIRTY.PLUGGE0, AIR VALVE BINDING

CHECK AND ADJUST OR INOPERATIVE

OR STICKING ACCELERATOR PUMP

I DISCHARGE BALLSTICKING. OIRTY, OR NOT SEATING I

I 1 VALVE OR SECONOARY THROTTLE VALVE LOCKOUT NOT OPERATING

LOW FUEL LEVEL I N FLOAT CHECK FUEL PUMP BOWL PRESSURE AND VOLUME

VALVESSTICKING OPEN SLIGHTLY

CO. W D , 1 3 1 , 1 3 2 : 1 6 . 9 X . 9 F R , 9 F D Q u a d r a j e t 14 b b l . ) C a r b u r e t o r P R I N T E D IN U.S.A.

@ 1 9 7 1 . G E N E R A L M O T O R S CORP.

ENGINE FEELSSLUGGISH OR FLAT O N ACCELERATION

VAL'IE OPERATION

ENGINE FLATTENSON ACCELERATION ACCELERATION DURING WARM OR COLD COLD DRIVEAWAY

-.

CHOKE COIL ROD

OIRTYORPLUGGEO. FLOATSTICKING OR AIR VALVE BINOING.OR

NOTPROPERLY ADJUSTED STICKING

CHECK CHOKE VACUUMBREAK

POWER SECONDARY MAlN NOZZLES PISTON STUCK OR BINDING PLUGGED OR OIRTY: SECONDARY

METERING ROOSMISALIGNEO. THROTTLE BODY OR STICKING.DIRTY, OR BENT MANIFOLD HEAT SECONDARY MAIN METERING JETS PASSAGES PLUGGED MAIN METERING JETS OIRTY.PLUGGE0, OR PLUGGEO

INCORRECTPART MAlN METERING ROOS

I CHECK AIR VALVE OR CHECK ENGINE IGNITION SECONDARY THROTTLE INITIAL TIMING VALVE LOCKOUT THROTTLE VALVESSTICKING

Delco Carburetor BULLETIN: 9D.5T DATE: NOVEMBER 1971 PAGE 4 of 5 FILE AFTER BULLETIN 9D-%

TROUBLE -SHOOTING

THE 1 QUADRAJET 4 MC - 4 MV CARBURETOR (CONT'D.)

CARBURETOR FLOODING ENGINE RUNS UNEVEN OR SURGES

RUN FUELPUMPTEST CHECKPRESSUREAND

ANDVOLUME CHECK FLOATNEEDLEANOSEATFOR 0IRT.WEAR. OAMAGE,DR LOOSE PARTCLEAN A L L FUEL

CHLCIANOADJUSTFLO~TLEVELCHECK OlSTORTEO FLOAT ARMS

CHECK { F l L l BOWL W i l H FUELONBENCH ANOOBSERYLFORLEAKSI C H E C I S E A l O N A L L B O W L G A S K E I S

I CHLCKHOTIOLECOMPENSATORFOR OPENING AN0 CLOSING (WHERE USED1

PLUGGEOOR DIRTY CHECK C E C

I VALVE OPERATION ,ME ,,<F", I I

I M A N METLRlNG JETS PLUGGLO.100SE.ORWRONG I

I PART 1 I PRIMARY METERING RODS BENT.AITEREO.OR

POWER PlSTON ST lC r lNG DIRTY SPRlNG MISSING

I I FLOAT ADJUSTMENT INCORRECT

ROUGH ENGINE IDLE AND STALLING

I F ROUGH IDLE CONTlNUESAFTER CHECK IDLE SYSTEM 6 O R

ADJUSi10LE SPEED PROPER IOLLAOJUSTMENTCHECK O l R l Y OR PLUGGEO

TOSPECIFICATIONS

T~GHTLNALLCRRBURETORSSCREWS GIISI€TSNOTSEAL~NG IDLE COMPENSATOR NOT TOROUECARBURETOR T O M A N I F O L O MAY BE H & R O OR SRITTLE OPENING OR CLOSlNG ANoMANIFOLOTO ENGINE BOLTS CHECKFOR LOOSESCREWS

I

CARBURETOR IDLE PASSAGES SECONDARY THROTTLE VALVES O I R i Y OR PLUGGED

THROTTLE VALVESSTICKING OPEN

I

F L O A T N E E O I L S E A T LEAKING NEEDLE A N 0 SEATAOJUST FLOATNOTPAOPLRLYAOJUSTEO FLOAT 1 0 SPECIFICATIONS

I

CHECK FOR BINOIND FLOAT THROTTLLBOOYGASKETSFOR AIR LEAKS BETWEEN CASTINGS

CHECIPOWLR PISTON PASSAGES FOR AIR LEAKS

L I

CO. WD, 131. 132: 16.9X. 9FR.9FD ouadrajet (4 bbl.) Carburetor PRINTED IN U.S.A. O 1971. GENERAL MOTORS COW.

Delco Carburetor BULLETIN: 9DE.T DATE NOVEMBER 1971

, PAGE 5 of 5 FILE AFTER BULLETIN 9D 5S

TROUBLE -SHOOTING

THE


POOR ECONOMY Q RUN MILEAGE TEST IF MILEAGE ISPOOR. CHECK C.E.C. VALVE

CHECK DRIVER H ~ B I T S PROCEEDTOCHECKTHE

C H E C K C H O I E Y A L Y E A N D LINKAGE FORB iNO lNG OR ST lC I lNG

AIR VALVE BINDING. STICKING

-

AIR V A L V E OR SECONDRRI

CABURETOR FLOODING - I

I CHECK POWER PlSTON CHECK POWER PCSTON

SPRING FOR DISTORTION FORSTICKING OR BEING VACUUM PASSAGE FOR - BENT LEAKSOR BEiNG

I - PLUGGED

I

PUMP DISCHARGE BALL NOT SEATING CHECKFOR DlRT, OEFECTIYESEATOR DISCHARGESPRlNG

CHECKMETERING RODS FOR BEING BENT UP WRONG PART

FLOAT BENT. LEAKING. STICKING. OR MISALIGNED

OPENING AT CARBURETOR AOJUSTTWROTTLE LINKAGE

CHECK MAIN METERINGJETS FOR BEINGPLUGGED LOOSE OR INCORRECTPART

FLOATSETTING INCORRECT

MAINMETERINGJETSPLUGGEO,

MAKESURE GASKETS SEAL PROPERLY ON A L L VACUUM PhSSIGES

MAY BEHARD OR BRITTLE CHECKFOR 100SESCREWS

CO. WD. 131,132: 16.9X. 9FR. 9FD Quadrajet (4 bbl.) Carburetor PRINTED IN U.S.A. @ 1971 ,GENERAL MOTORS CORP.

Documents

65-79QuadrajetAdjustments