Specification - Barrington Diesel Club · Standard Torque For Metric Fasteners Exceptions to these torques are given in this specification module where needed. Refer to Torque Specification

CATERPILLAR'

Specification3176B DIESEL TRUCK ENGINE

S/N 9CK1-UP

from the library of Barrington Diesel C lub

SENRSS60-01

https://www.barringtondieselclub.co.za/


3176B DIESEL TRUCK ENGINE SENR5560-01

C ATER PILLAR

Specifications3176B DIESEL TRUCK ENGINEMedia Number -SENR5560-01 Publication Date -01/03/1993 Date Updated -12/10/2001

IntroductionSMCS - 1202-010

When the words "use again" are in the description, the specification given can be used to determine if a part can be used again. If the part is equal to or within the specification given, use the part again.

When the word "permissible" is in the description, the specification given is the "maximum or minimum" tolerance permitted before adjustment, repair and/or new parts are needed.

A comparison can be made between the measurements of a worn part and the specifications of a new part to find the amount of wear. A part that is worn can be returned to service if an estimate of the remainder of its service life is good. If a short service life is expected, replace the part.

Reference: See 3176B Diesel Truck Engine, Form No. SENR5561, for Systems Operation, Testing and Adjusting.

from the library of Barrington Diesel C lub 2


C ATER PILLAR


Metric FastenersSMCS - 1202-010

C21099P1

NOTE: Take care to avoid mixing metric and inch fasteners. Mismatched or incorrect fasteners can result in mechanical damage or malfunction, or possible personal injury. Original fasteners removed during disassembly should be saved for assembly when possible. If new ones are required, caution must be taken to replace with one that is of same part number and grade.

Metric thread fasteners are identified by material strength (grade) numbers on bolt heads and nuts. Numbers on bolts will be 8.8,10.9, etc. Numbers on nuts will be 8, 10, etc.

Standard Torque For Metric FastenersExceptions to these torques are given in this specification module where needed. Refer to Torque Specification module, Form No. SENR3130, for additional standard torques for both metric and inch fasteners.



C ATER PILLAR


Engine DesignSMCS - 1202-010

EXHAUST INTAKE

C213S7P1

Cylinder And Valve Location

Bore ... 125.025 ± 0.025 mm (4.9222 ± .0010 in)

Stroke ... 140 mm (5.5 in)

Displacement... 10.3 liter (628.3 cu in)

Cylinder Arrangement... in-line

Valves per Cylinder... 4

Valve Clearance Setting With Engine Cold And Stopped

Intake ... 0.38 mm (.015 in)

Exhaust... 0.64 mm (.025 in)

Type of Combustion ... Direct Injection

Firing Order:... 1,5,3,6,2,4



Direction of Crankshaft Rotation (when seen from flywheel end)... counterclockwise

NOTE: Front end of engine is opposite the flywheel end. Left side and right side of engine are as seen from flywheel end. No. 1 cylinder is the front cylinder.


SENR5560-013176B DIESEL TRUCK ENGINE

CATERPILLAR'

Specifications3176B DIESEL TRUCK ENGINEMedia Number -SENR5560-01 Publication Date -01/03/1993

Fuel System IdentificationSMCS - 1202-010

Date Updated -12/10/2001

(1) Siphon break passage.

(2) Vent plug.

(3) Pressure regulating orifice.



(4) Electronically controlled unit injectors.

Injection sequence (firing order) ... 1-5-3-6-2-4

(5) Fuel manifold (return path).

(6) Fuel manifold (supply path).

(7) Drain plug.

(8) Fuel tank.

(9) Fuel transfer pump ... 3.5 liter/min (.93 U.S. gpm) minimum flow requirement @ 1800 rpm

Normal pressure to tank at location (2)... 630 kPa (91 psi)

(10) Electronic control module.

(11) Fuel priming pump.

(12) Secondary fuel filter ... 5 micron



CATERPILLAR'


Fuel Injection Lines GroupSMCS - 1202-010

J R 7 C57725P1

(1) Fuel manifold.

(2) Pressure regulating orifice.

(3) Fuel return to tank.

(4) Cylinder head.

(5) Adapter (siphon break).

(6) Spring (104-1729):

Assembled length ... 18.37 mm (.723 in)

Operating length (min.)... 15.37 mm (.605 in), minimum

Free length after test... 30.2 ± 0.7 mm (1.19 ± .03 in)

Outside diameter ... 11.29 mm (.44 in)

(7) Supply hose assembly (from fuel filter base).



C ATER PILLAR


Fuel Transfer PumpSMCS - 1202-010

C53M1P1

(1) Lubricate bore lightly with engine oil.



C ATER PILLAR


Primary Fuel FilterSMCS - 1202-010

Typical Example

(1) Torque for nu t... 25 ± 5 N-m (18 ± 4 lb ft)

(2) Spring (7S9323):

Length under test force ... 27.9 mm (1.10 in)

Test force ... 125 to 145 N (28 to 33 lb)

Free length after test... 42.7 mm (1.68 in)




C ATER PILLAR


Fuel Filter GroupSMCS - 1202-010

C2T973P2

(1) Put 9S3263 thread lock on the tapered end of stud to a distance o f ... 7.6 mm (.30 in)

(2) Cylinder block.

(3) Sealing surface of stud.

NOTE: Do not damage this surface.

(4) Torque for stud ... 70 ± 15 N-m (50 ± 11 lb ft)


3176B DIESEL TRUCK ENGINE

(5) Distance from sealing surface of base to end of stud ... 24.6 ±1.3 mm (.97 ± .05 in)

SENR5560-01



C ATER PILLAR


Fuel Priming Pump GroupSMCS - 1202-010

C21974P1

(1) Pump assembly.

(2) Fuel from electronic control module.

(3) Fuel to fuel manifold.

(4) Fuel filter base. Fuel filter base is mounted to the cylinder head. A remote mounted fuel priming pump group is available.



Fuel Priming Pump Assembly

Fuel Priming Pump Assembly

Pump assembly closed must withstand 310 kPa (45 psi) fuel pressure for 30 seconds with maximum leakage of 0.01 cc (.001 cu in).

Pump assembly open must withstand 310 kPa (45 psi) fuel pressure for 10 seconds with maximum leakage of 1.0 cc (.061 cu in).

(1) Open reference distance ... 147.1 mm (5.79 in)

(2) Plunger assembly.

(3) Ring Roll lip of plunger assembly around ring after assembling plunger assembly into barrel(5).

(4) Closed reference distance ... 112.1 mm (4.41 in)

(5) Barrel.

(6) Seal and Ring. For proper assembly, assemble seal and ring to plunger assembly using mandrel and ring pusher. Insert plunger assembly into barrel using resizing tool.

(7) Seal.

Valve (B) and pump must hold 254 ± 5.4 mm (10 ± .2 in) Hg vacuum for 10 seconds.

Valve (A) and pump must hold 68.95 ± 6.90 kPa (10 ± 1 psi) for 10 seconds.



C ATER PILLAR


Ether Starting AidSMCS - 1202-010

(1) Ether cylinder assembly. Position ± 20 degrees from vertical.

(2) Clamp assembly. Position clamp assembly 178 mm (7.01 in) vertically above ether valve assembly mounting holes.

(3) Ether valve assembly. With cylinder assembly (1) installed, the valve assembly provides 2.25 cc (.14 cu in) of ether through the steel tube to atomizer assembly (8) in the air inlet manifold system each time control panel switch (4) is pressed for three seconds, then released.

Locate as close to the engine inlet manifold as possible (do not mount on engine).

Do not mount in a location that subjects valve assembly and cylinder assembly (1) to temperatures greater than 93.3°C (200°F).

Install valve assembly so cylinder assembly (1) can be installed in a vertical position as shown.



(4) Control panel switch. Install switch close to operator's starting station. Switch requires clearance hole for 5/8inch diameter thread, and 38 mm (1.50 in) depth behind control panel or mounting bracket.

(5) Ether valve connector.

j 9 6

1 (o)C23791P1

Location For Ether Atomizer Assembly And Temperature Switch Assembly.(6) Temperature switch assembly. (8) Ether atomizer assembly. (9) Temperature regulator housing. (10) Cylinder head. (11) Inlet manifold.

(6) Temperature switch assembly. The temperature switch will not allow starting fluid to reach the atomizer if the engine temperature is above 38°C (100°F). Final installation tighten to 1.2 N m (11 lb in).

Remove 3/8 inch pipe plug from temperature regulator housing (9) and install the temperature switch.

(7) Flexible tube assembly. Assemble 3.18 mm (.125 in) O.D. steel tubing between ether valve assembly (3) and ether atomizer assembly (8). Use the flexible tube assembly as a flexible connection between the two lines. The use of any additional length of tubing is not recommended. No electric wires are to be clamped to the ether line.

(8) Ether atomizer assembly. Remove 1/2 inch pipe plug from inlet manifold (11) and install atomizer assembly. Before atomizer assembly is tightened, turn identification mark to face front or rear of the engine.



DATERPIL1AR

Specifications3176B DIESEL TRUCK ENGINEMedia Number -SENR5560-01 Publication Date -01/03/1993 Date Updated

Jake Brake InstallationSMCS - 1202-010

SENR5560-01

-12/ 10/2001



(1) Jake Brake.

(2) Locknut. Tighten locknut to a torque o f ... 35 ± 8 N-m (25 ± 6 lb ft)

(3) Screw. (Adjustment for slave piston setting).

(4) Nut. Tighten hold-down nuts to ... 80 ± 15 N-m (59 ± 11 lb ft)

(5) Prior to installation of Jake Brake, install studs and tighten to a torque o f ... 95 ± 15 N-m (70 ± 11 lb ft)

(6) Slave piston.

(7) Slave piston lash setting ... 0.64 mm (.025 in)



Adjust slave piston lash with the engine stopped. The exhaust valves must be closed on the cylinder to be adjusted. See the topic, Jake Brake Adjustment, in the Testing and Adjusting section of Systems Operation, Testing And Adjusting, Form No. SENR5561.

(8) Exhaust bridge assembly.

(9) Actuating pin.

(10) Exhaust valve seat insert.

(11) Exhaust valve.

(12) Bolt. Tighten to a torque o f ... 55 ± 10 N-m (41 ± 7 lb ft)

(13) Spacer. Tighten to a torque o f ... 95 ± 15 N-m (70 ± 11 lb ft)

(14) Bolt. Tighten to a torque o f ... 95 ± 15 N-m (70 ± 11 lb ft)

(15) Head bolt stud. Tighten to a torque o f ... 275 ± 15 N-m (200 ± 11 lb ft)

(16) Locknut (exhaust and intake rocker arm). Tighten to a torque o f ... 25 ± 7 N m (18 ± 5 lb ft)

(17) Intake bridge assembly.

(18) Exhaust bridge assembly. Tighten plunger assembly to a torque o f ... 25 ± 7 N-m (18 ± 5 lb ft)



C ATER PILLAR


Electronic Unit Injector Mechanism GroupSMCS - 1202-010

1

C53611P1

(1) Jake Brake (if equipped).



(A) Spacer (used for Jake Brake installation).

(B) Headbolt stud (used for Jake Brake installation).

(2) Locknut. Tighten locknut to a torque o f ... 55 ± 10 N-m (41 ± 7 lb ft)

(3) Spacer. Spacer provides additional clearance for the Jake Brake Group.

(4) Electronically controlled unit injector.

Unit Injector Adjusting Instructions:

a. Turn the unit injector rocker arm adjusting screw clockwise until contact is made with the unit injector.

b. Turn the adjusting screw clockwise an additional... 180 degrees (1/2 turn)

c. Hold the adjusting screw in this position and tighten the locknut to a torque o f ... 55 ± 10 N-m (41 ± 7 lb ft)

(5) Unit injector rocker arm assembly.

(6) Rocker arm shaft. Diameter of shaft (new)... 32.000 ± 0.010 mm (1.2598 ± .0004 in)

(7) Lifter Group Shaft.

Diameter of shaft (new)... 20.000 ± 0.010 mm (.7874 ± .0004 in)

Bore diameter in body of unit injector lifter assembly ... 20.050 ± 0.015 mm (.7894 ± .0006 in)

(8) Unit injector lifter assembly.



C ATER PILLAR


Lifter GroupSMCS - 1202-010

1 2 3

(1) Unit injector lifter assemblies.

(2) Valve lifter assemblies.

(3) Oil supply lifter bracket assemblies

(4) Lifter bracket assemblies

(5) Distance dowels extend below surface of the bracket assemblies ... 4.0 ±1.0 mm (.16 ± .04 in)



C ATER PILLAR


Unit Injector Rocker Arm AssemblySMCS - 1202-010

K .2

CS3S01P1

(1) Bore in rocker arm bearing for shaft (new)... 32.050 ± 0.015 mm (1.2618 ± .0006 in )... 30.050 ± 0.015 mm (1.1831 ± .0006 in)

Bearing must not extend beyond either face of rocker arm.

(2) Bearing joint.

(A) Oil passage angle ... 15 degrees

(B) Oil passage angle ... 20 degrees

After assembly of bearing, oil hole openings must be centered over oil passages within 2.3 mm (.09 in).

(3) Bore in rocker arm for bearing ... 33.000 ± 0.020 mm (1.2992 ± .0008 in)



C ATER PILLAR


Rocker Arm Shaft AssemblySMCS - 1202-010

I

— I f ; — 2I

(1) Pin.

(2) Distance from top surface of pin to the opposite side of shaft ... 37.0 ±1.0 mm (1.42 ± .04 in)

(3) Plug in end of shaft.

(4) Install plug to a depth of... 1.25 ± 0.25 mm (.049 ± .010 in)



DATERPIL1AR


Electronically Controlled Unit InjectorSMCS - 1202-010

Date Updated

1.7 Liter Unit Injector Test SpecificationsNOTE: The 1.7 Liter unit injectors can ONLY Be tested on the 1U6661 Pop Tester.

Valve Opening Pressure (VOP) Test (Load Cell Pressure):

* Maximum Pressure ... 4900 kPa* Minimum Pressure ... 2700 kPa

SENR5560-01

-12/ 10/2001



Leakdown Rate:

* Upper Test Limit Pressure ... 4500 kPa* Lower Test Limit Pressure ... 2500 kPa

Minimum Leakdown Time:

* New or Remanufactured Injector... 30 seconds* Used Injector ... 30 seconds

(1) Solenoid valve assembly.

(2) Tappet.

(3) Injector clamp.

(4) Bolt. Tighten to ... 30 N-m (22 lb ft)

(5) Spacer.

(6) O-ring. Lubricate with engine oil before installation of the fuel injector group into the cylinder head.

(7) Maximum distance from the top of fuel injector group to bottom of the solenoid valve assembly holder ... 92.83 mm (3.650 in)

(8) Nozzle group.

See Testing and Adjusting section, for Electronically Controlled Unit Injector test instruction.



C ATER PILLAR


Valve Mechanism GroupSMCS - 1202-010

C5338BP1

(1) Valve rocker arm assembly.

(2) Valve lash (with engine stopped).

Intake valves ... 0.38 mm (.015 in)

Exhaust valves ... 0.64 mm (.025 in)



NOTE: After setting valve clearance, tighten adjusting screw locknut to a torque of 25 ± 7 N-m (18 ± 5 lb ft). Then, recheck the valve lash.

(3) Rocker arm shaft. Diameter of shaft (new)... 32.000 ± 0.010 mm (1.2598 ± .0004 in)

(4) Valve bridge assembly.

Bridge Installation Instructions:

a. Lubricate top pad of bridge with engine oil.

b. Install bridge assembly on bridge dowel.

(5) Lifter group shaft.

Diameter of shaft (new) ... 20.000 ± 0.010 mm (.7874 ± .0004 in)

Bore diameter in body of valve lifter assembly ... 20.050 ± 0.015 mm (.7894 ± .0006 in)

(6) Valve lifter assembly.



C ATER PILLAR


Valve Rocker Arm GroupSMCS - 1202-010

(1) Inlet. Hold adjusting screw in position and tighten locknut to a torque o f ... 25 ± 7 N-m (18 ± 5 lb ft)

(2) Exhaust. Hold adjusting screw in position and tighten locknut to a torque o f ... 25 ± 7 N m (18 ± 5 lb ft)

(3) Support assembly.

(4) Distance dowel extends below surface of support... 5.0 ± 0.5 mm (.20 ± .02 in)



C ATER PILLAR


ValvesSMCS - 1202-010

2 ,

4-—.

5 —

8 —

7 — ■

C53889P1

NOTE: Intake and exhaust valve stems are to be coated with 8T2998 Break- in Lubricant prior to installation in the cylinder head.

(1) Intake valve.

(2) Exhaust valve.

(3) Height to step in valve guide ... 22.00 ± 0.50 mm (.866 ± .020 in)

(4) Outer Valve Spring (7W7082):

Assembled length ... 51.69 mm (2.035 in)

Load at assembled length ... 240 ± 24 N (54 ± 5 lb)

Operating length (min) ... 37.72 mm (1.485 in)

Load at min operating length ... 650 ± 32 N (146 ± 7 lb)




Outside diameter... 34.00 mm (1.339 in)

(5) Inner Valve Spring (7W7083):


Load at assembled length ... 136±14N (31±31b)


Load at min operating length ... 292 ± 15 N (66 ± 3 lb)



(6) Diameter of valve stems (new) ... 9.441 ± 0.008 mm (.3717 ± .0003 in)

Use again minimum:

7C1586 Exhaust... 9.408 mm (.3704 in)

7E9578 Intake ... 9.408 mm (.3704 in)

Bore in valve guide with guide installed in the head (new)... 9.484 ± 0.026 mm (.3734 ± .0010 in)

Use again dimension for valve guide bore ... 9.538 mm (.3755 in)

(7) Diameter of valve head:

Exhaust valve ... 42.00 ± 0.13 mm (1.654 ± .005 in)

Intake valve ... 45.00 ±0.13 mm (1.772 ± .005 in)

(8) Angle of valve face:

Angle of intake valve face ... 29 1/4 ± 1/4 degrees

Angle of exhaust valve face ... 44 1/4 ± 1/4 degrees



(9) Depth of bore in head for valve seat insert:

Intake ... 15.00 ± 0.10 mm (.591 ± .004 in)

Exhaust... 14.10 ± 0.10 mm (.555 ± .004 in)

NOTE: Inserts to be shrunk by reduced temperature before being placed in counterbore.

(10) Diameter of valve seat insert for intake valve ... 46.025 ±0.013 mm (1.8120 ± .0005 in)

Bore in head for valve seat insert for intake valve ... 45.961 ± 0.013 mm (1.7957 ± .0005 in)

Diameter of valve seat insert for exhaust valve ... 43.400 ± 0.015 mm (1.7086 ± .0006 in)

Bore in head for valve seat insert for exhaust valve ... 43.320 ± 0.025 mm (1.7055 ± .0009 in)

(11) Angle of face of intake valve seat insert... 30 1/4 ± 1/2 degrees

Angle of face of exhaust valve seat insert... 44 3/4 ± 1/2 degrees

(12) "Use again" thickness of valve lip:

Exhaust valve ... 2.03 mm (.080 in)

Intake valve ... 2.51 mm (.099 in)



C ATER PILLAR


Valve Mechanism Cover GroupSMCS - 1202-010

G21963P1

(1) Seal. Cut seal to length for each of three covers.

Coat joint with 3S6252 RTV Silicone.

(2) Cover. (Three covers in total group.)



(3) Tighten valve cover bolts 1 thru 6 by numerical sequence to a torque o f ... 12 ± 3 N m (9 ± 2 lbft)

Retighten valve cover bolts 1 thru 6 by numerical sequence to a torque o f ... 12 ± 3 N-m (9 ± 2 lbft)

(4) Spacer. (Provides additional clearance for the jake brake group.)

(5) Breather assembly.

NOTE: On an engine equipped with a fumes disposal hose, [ID = 31.8 mm/ (1.25 in)] and utilizing additional air to produce 19.82 m3 per hour blowby, the crankcase pressure shall be less than 0.4 kPa (.06 psi).

(6) Cylinder head.



CATERPILLAR'


Cylinder HeadSMCS - 1202-010

Depth that all cup plugs are installed (measured from head face to top edge of plug) ... 1.25 ± 0.25 mm (.049 ±.010 in)

Cylinder head bolt tightening sequence:

NOTE: Lubricate bolts with 2P2506 Thread Lubricant prior to assembly.

a. Tighten bolts 1 thru 26 by numerical sequence to a torque o f ... 150 ±15 N-m (110 ± 11 lb ft)

b. Tighten bolts 1 thru 26 by numerical sequence to a torque o f ... 275 ± 15 N-m (200 ± 11 lb ft)

c. Retighten bolts 1 thru 26 by numerical sequence to a torque o f ... 275 ±15 N-m (200 ± 11 lb ft)

d. Tighten bolts 27 thru 33 by numerical sequence to a torque of... 25 ± 7 N-m (18 ± 5 lb ft)

Cylinder head height (new) ... 105.00 ± 0.15 mm (4.134 ± .006 in)

Minimum permissible thickness of cylinder head ... 104.6 mm (4.118 in)

NOTE: Flatness of the cylinder head should be within 0.30 mm (.012 in) total, and a maximum of 0.05 mm (.002 in) for any 150.00 mm (5.906 in) span.



DATERPIL1AR

Specifications3176B DIESEL TRUCK ENGINEMedia Number -SENR5560-01 Publication Date -01/03/1993 Date Updated

Exhaust ManifoldSMCS - 1202-010

C21988P1

(1) Bolts. Apply 5P3931 Anti-Seize Compound to threads.

Tighten to a torque o f ... 55 ± 10 N-m (41 ± 7 lb ft)

(2) Studs. Tighten to a torque o f ... 35 ± 5 N-m (26 ± 4 lb ft)

SENR5560-01

-12/ 10/2001



C ATER PILLAR


Turbocharger (SB3)SMCS - 1202-010

(1) End play for shaft (new)... 0.102 ± 0.025 mm (.004 ± .001 in)

Maximum permissible end play (worn)... 0.20 mm (.008 in)

(2) Thickness of thrust bearing (where thrust rings contact bearing)... 5.36 ± 0.03 mm (.211 ± .001 in)

(3) Diameter of shaft (new) ... 12.697 to 12.705 mm (.4999 to .5002 in)

Bore in the bearing (new)... 12.741 to 12.748 mm (.5016 to .5019 in)

Maximum permissible clearance between bearing and shaft (worn)... 0.05 mm (.002 in)

(4) Maximum permissible gap of oil seal ring, measured in bore of housing ... 0.25 mm (.010 in)

NOTICE



The impeller shaft nut is a left hand thread (CCW).

(5) Install the compressor wheel (at room temperature) as follows:

a. Put compressor wheel on the shaft.

b. Put a small amount of clean engine oil on the threads.

c. Tighten the nut (CCW) to 14 to 17 N-m (125 to 150 lb in).

d. Loosen the nut and tighten again to 9 N m (80 lb in) plus an additional 60 degrees (1/6 turn).

NOTICE

Do not bend or add stress to the shaft when the nut is loosened ortightened.

(6) Thickness of each thrust ring ... 2.553 ± 0.013 mm (.1005 ± .0005 in)

(7) Bore in housing (new)... 20.744 to 20.757 mm (.8167 to .8172 in)

Outside diameter of the bearing (new)... 20.630 to 20.643 mm (.8122 to .8127 in)

Maximum permissible clearance between bearing and bore in housing (worn) ... 0.15 mm (.006 in)

Torque for four nuts (put 5P3931 Anti-Seize Compound on threads) and bolts that hold turbocharger to exhaust manifold ... 55 ± 5 N-m (40 ± 4 lb ft)

Install the band clamps to hold the cartridge to the compressor housing as follows:

a. Tighten clamps to ... 14 ± 1.1 N-m (125 ± 10 lb in)

b. Tap (hit) clamp lightly all around.

c. Tighten again to ... 14 ± 1.1 N m (125 ± 10 lb in)

NOTE: Put clean engine oil in the oil inlet of the turbocharger after assembly or before installation to provide start up lubrication and/or storage protection.



C ATER PILLAR


Camshaft GroupSMCS - 1202-010

(1) Spacer block.

(2) Thrust pin. Tighten pin to a torque o f ... 48 ± 7 N-m (35 ± 5 lb ft)

(3) Gear. Maximum temperature of gear when shrinking in place ... 300°C (572°F)

(4) Camshaft. Diameter of camshaft journals (new)... 74.850 ± 0.025 mm (2.9470 ± .0010 in)

(5) Key.

(6) Camshaft journal (rear). Diameter of camshaft journals (new) ... 74.815 ± 0.025 mm (2.9450 ± .0010 in)

Assemble with journal part no. and "rear" on this side. Maximum temperature of journal when shrinking in place is 300°C (572°F).

(7) Gear. Maximum temperature of gear when shrinking in place ... 300°C (572°F)



(9) Height of camshaft lobes. Typical example exhaust, intake, and injector lobes.

To find lobe height, use the procedure that follows:

a. Measure camshaft lobe height (9).

b. Measure base circle (10).

Exhaust... 55.0 ± 0.4 mm (2.17 ± .02 in)

Intake ... 51.0 ± 0.4 mm (2.01 ± .02 in)

c. Subtract base circle (step b) from lobe height (step a). The difference is actual lobe lift (11).

d. Specified camshaft lobe lift is:

Exhaust lobe ... 9.550 mm (.3760 in)

Intake lobe ... 11.371 mm (.4480 in)

Injector lobe ... 10.474 mm (.4124 in)

Minimum permissible difference between actual lobe lift (STEP C) and specified lobe lift (STEP D) is ... ± 0.13 mm (.005 in)



CATERPILLAR'


Oil Filter GroupSMCS - 1202-010

4 5

(1) Oil cooler base bypass valve.

Opening pressure ... 155 ± 17 kPa (22.5 ± 2.5 psi)

(2) Base assembly.

Tighten stud that holds filter assembly (3) to a torque o f ... 68 ± 7 N-m (50 ± 5 lb ft)

(3) Filter assembly.

(4) Cover. Tighten to a torque o f ... 60 ± 10 N m (44 ± 7 lb ft)

(5) Seal. Lubricate seal with lubricant being sealed.



Section A-A. Oil Filter Bypass Valve.

The bypass opening pressure differential is 170 kPa (25 psi).

(6) Seal.

(7) Spring (8M3182):


Load at assembled length ... 36.5 N (8.92 lb)


Outside diameter... 20.6 mm (.81 in)

(8) Seal.

(9) Plunger.



I I 11

t a Iii

SECTION B-BC373SQF1

Section B-B. Oil Pump Bypass Valve.

(10) Spring (2N6005):


Load at assembled length ... 92.52 N (20.817 lb)


Load at min operating length ... 257.55 N (57.949 lb)



(11) Valve.

(12) Seal.

(13) Seal.



C21994P1

Section C-C. High Pressure Relief Valve.

The relief pressure is 696 kPa (101 psi).

(14) Spacer.

(15) Spring (1A2170):

Assembled length ... 21.43 mm (.844 in)

Load at assembled length ... 198.03 ± 13.35 N (44.500 ± 3.000 lb)



(16) Seal.



Oil Cooler Bypass Valve.

(17) Minimum stroke ... 8.4 mm (.33 in)

(18) Length of valve fully compressed ... 44.2 ± 1 mm (1.70 ± .04 in)

(19) Length of valve fully extended ... 52.6 ± 1 mm (2.10 ± .04 in)

(B) Position "B".

Valve Data:

Start to close temperature ... 100 to 102.8°C (212 to 217°F)

Position "B" temperature activation ... 111.1°C (232°F)

Position "B" bypass opening pressure differential... 155 ± 17 kPa (22 ± 2 psi)

Fail safe activation temperature ... 126.7°C (260°F)

NOTE: Unit will stroke to and remain at position "B" at failsafe activation temperature.



DATERPIL1AR


Oil Cooler AssemblySMCS - 1202-010

With SAE 30W oil, the oil flow through the cooler assembly is 110 liter/min (29 U.S. gpm). The maximum water flow through the cooler assembly is 287 liter/min (75 U.S. gpm).

Install with large end of tapered holes, identified by printed part number, toward outside. Lubricate with Amodrip 365 and press fit to dimension shown both ends. Cure after assembly at 71°C (160°F) for 16 hours or 21°C (70°F) minimum for 72 hours.

Bundle Assembly to be assembled to shell with first baffle in position (1).



C ATER PILLAR


Oil PressureSMCS - 1202-010

Operate the engine to achieve the normal operating temperature. With the engine at operating temperature, the maximum oil temperature is 110°C (230°F). This temperature is from or after the oil cooler. Check the engine oil pressure in the oil gallery on the right side of the engine block.

Oil pressure under full load condition ... 275 to 414 kPa (40 to 60 psi)

Minimum oil pressure at low idle (600 to 800 rpm )... 68 kPa (10 psi)



C ATER PILLAR


Oil PumpSMCS - 1202-010


Section View Through Pump

NOTICE

Before operation, the pump must be lubricated with clean engine oil and the pump must turn freely by hand or damage to parts can be the

result.

Oil Pump Performance:

Oil type ... SAE 30

Oil temperature ... 50°C (122°F)



Pump speed... 3000 rpm

Oil pressure ... 359 kPa (52 psi)

Oil flow (minimum) ... 185 1pm (48 gpm)

(1) Diameter of two shafts ... 18.000 ± 0.005 mm (.7087 ± .0002 in)

Bores in pump body for shafts ... 18.050 ± 0.010 mm (.7106 ± .0004 in)

(2) Seal groove. Prior to installation, lubricate bore in engine front cover where seal groove and seal will slide.

(3) Drive gear. Maximum temperature of gear is 316°C (601°F) when shrinking in place.

(4) Pump gears. Maximum temperature of gears is 316°C (601°F) when shrinking in place on shafts.

Length of gears (new) ... 50.000 ± 0.025 mm (1.9685 ± .0010 in)

Depth of bores in pump body for gears (new) ... 50.13 ± 0.02 mm (1.974 ± .001 in)

(5) Seal.

(6) Distance between outside face of gear and step face on pump body ... 29.40 ± 0.50 mm (1.157 ± .020 in)



C ATER PILLAR


Oil Pan GroupSMCS - 1202-010

■ — ASECTKW A—AC?t9B7F1

(1) Oil pan.

Oil pan is shown in rear sump mounting position.

An alternate front sump mounting position is available.

(2) Assemble gasket with seam against oil pan.

(3) Apply 9S3263 Thread Lock to plug threads, and tighten to a torque o f ... 80 ± 11 N-m (60 ± 8 lb ft)



C ATER PILLAR


Water Temperature RegulatorSMCS - 1202-010

(1) Lip type seal. Install as shown. Lubricate sealing lip slightly with glycerin.

(2) Regulator minimum stroke at fully open temperature ... 9.5 mm (.37 in)

(3) Regulator.

Fully open temperature ... 98°C (208°F)



DATERPIL1AR

Specifications3176B DIESEL TRUCK ENGINEMedia Number -SENR5560-01

Fan Drive GroupSMCS - 1202-010

Publication Date -01/03/1993 Date Updated

(1) Fitting. Fill seal cavity with 2S3230 Bearing Lubricant.

(2) Fan drive mounting plate.

(3) O-ring seal.

(4) Belt pulley.

SENR5560-01

-12/ 10/2001



DATERPIL1AR


Fan Drive Mounting GroupSMCS - 1202-010

(1) Plate.

(2) Damper assembly.



D I S T A N C E F R O M F A N T O C R A M C S H A F TS i d * “ A ”

F a c in g F o rw a rdS M t - S "

F a c in g . F o rw a r d254- m m (1 0 in) 2 7 9 .4 m ni ( 1 1 in)3 0 4 .8 m m (1 2 in) 3 3 0 .2 m m (1 3 in)3 55 .6 m m (1 4 in) 4 0 6 .4 m m (1 6 in)381 m m (1 5 In) 4 5 7 .2 m m (1 8 in)4 3 1 .8 m m ( 1 7 in) 506 m m (20 in)4 8 2 .6 m m (19 in)5 3 3 .4 m m (21 in)



C ATER PILLAR


Coolant Conditioner BaseSMCS - 1202-010

(1) Apply 9S3263 Thread Lock on the tapered end of the stud to a distance o f ... 7.6 mm (.30 in)

(2) Tighten stud to a torque o f ... 60 ± 7 N-m (44 ± 5 lb ft)



C ATER PILLAR


Cylinder Block GroupSMCS - 1202-010

C 53982P1

(1) Distance dowels extend past end surface of cylinder block ... 8.0 ± 0.5 mm (.31 ± .02 in)

(2) Bore diameter in cylinder block for the cylinder liners ... 138.50 ± 0.03 mm (5.453 ± .001 in)

(3) Distance dowels extend past end surface of cylinder block ... 8.0 ± 0.5 mm (.31 ± .02 in)



C53883P1

(4) Spacer block.

(5) Height of dowels above top surface of spacer block and cylinder block ... 8.00 ± 0.03 mm (.315 ±.001 in)

(6) Cylinder Liner.

NOTE: Make reference to the procedure for checking Cylinder Liner Projection in Testing And Adjusting Section of Service Manual Form No. SENR5561.

Cylinder liner projection above the top surface of the spacer block must be ... 0.12 ± 0.08 mm (.005 ± .003 in)

Apply 7M7260 Liquid Gasket as required to cylinder liner shoulder and cylinder block face joint of all liners.



(7) Depth plug is to be installed (from end surface of cylinder block to top of plug)... 1.25 ± 0.25 mm (.049 ± .010 in)

(8) Diameter of camshaft bores ... 75.000 ± 0.025 mm (2.9530 ± .0010 in)

(9) Oil cooling jet assembly.

Tighten bolt that holds oil cooling jet to ... 25 ± 7 N-m (18 ± 5 lb ft)

(10) Width of main bearing cap ... 175.00 ± 0.02 mm (6.8898 ± .0008 in)

Width in cylinder block for main bearing cap ... 175.000 ± 0.018 mm (6.8898 ± .0007 in)

(11) Distance from centerline of crankshaft bore to top surface of cylinder block ... 265.0 mm (10.43 in)

The flatness across the top contact surface of the block must be within 0.05 mm (.002 in) for any 150 mm (5.9 in) section of the surface.

(12) Distance from centerline of crankshaft to bottom surface of cylinder block ... 120.0 mm (4.72 in)

(13) Main bearing cap bolts. Install as follows:

Main bearing caps shall be assembled with the part number towards the right side. Caps are to be identified by stamped numbers 1 through 7 located on the bottom unmachined surface.



Main bearing cap bolts to be lubricated on threads and washer face with SAE 30 oil or molylube. Tighten bolts to 95 ± 5 N-m (70 ± 4 lb ft) plus 90 ± 5 degrees additional turn prior to machining. Tighten bolts simultaneously or tighten both bolts to 95 N-m (70 lb ft) before turning the additional 90 degrees.

(14) Bore in cylinder block for seven main bearings ... 108.000 ± 0.013 mm (4.2520 ± .0005 in)

NOTE: All main bearing bore measurements are to be made before caps are disassembled.



C ATER PILLAR


Spacer BlockSMCS - 1202-010

C219B 7P1 5

Spacer Block Cross Section

(1) Center diameter of bore for cylinder liner ... 151.00 ± 0.30 mm (5.945 ± .012 in)

(2) Diameter of lip of bore for cylinder liner ... 147.30 ± 0.10 mm (5.799 ± .004 in)

(3) Diameter of camshaft bores ... 75.000 ± 0.025 mm (2.953 ± .001 in)

(4) Spacer block height (new)... 100.00 ± 0.05 mm (3.937 ± .002 in)

(5) Diameter of bore for cylinder liner at bottom of spacer block ... 152.40 ± 0.13 mm (6.000 ± .005 in)



C ATER PILLAR


Cylinder LinersSMCS - 1202-010

1

C22013FZ

(1) Diameter of flange ... 138.40 ± 0.03 mm (5.449 ± .001 in)

(2) Diameter of top portion of cylinder liner... 146.95 ±0.15 mm (5.785 ± .006 in)

(3) Inside diameter of cylinder liner ... 125.037 ± 0.037 mm (4.9227 ± .0015 in)

(4) Diameter of seal groove in cylinder liner ... 136.12 ± 0.08 mm (5.359 ± .003 in)

(5) Diameter of center portion of cylinder liner ... 137.00 ± 0.20 mm (5.394 ± .008 in)

(6) Diameter of bottom portion of cylinder liner... 135.50 ± 0.50 mm (5.335 ± .020 in)

(7) Thickness of flange ... 100.12 ± .03 mm (3.942 ± .001 in)



C ATER PILLAR


CrankshaftSMCS - 1202-010

1 2

C22Q12P1 3 4

(1) Main bearing journals. Thrust plate to be used on center main bearing only.

(2) Heat gear to a maximum temperature of 316°C (601°F) for installation.

(3) Connecting rod bearing journals.

(4) Average diameter of gear... 136.18 ± 0.13 mm (5.361 ± .005 in)

Maximum diameter of gear after assembly ... 136.36 mm (5.368 in)

NOTE: After assembly into the block, crankshaft end play is to be a maximum of 0.50 mm (.020 in) and a minimum of 0.10 mm (.004 in).



C ATER PILLAR


Crankshaft SealsSMCS - 1202-010

1 2 3

NOTE: Install front and rear crankshaft seals dry.

(1) Flywheel housing.

(2) Seal group cover.

(3) Front housing.

(4) Crankshaft.



" SECTION A - AC22015P1

Rear Seal Group.

(5) Rear face of cylinder block.

(6) Apply 5P3413 Thread Sealant to bolt threads.

(7) Tighten bolts to a torque of... 12 ± 3 N-m (9 ± 2 lb ft)

(8) O-ring seal. Lubricate seal lightly with lubricant being sealed.



C ATER PILLAR


Connecting Rod And Main Bearing JournalsSMCS - 1202-010

Connecting Rod Bearing Journal

C O N N E C T I N G R O D B E A R I N G J O U R N A LOriginal S ize Jo u rn a l

8 2.000 ± 0 .0 2 0 mm (3 .228 3 ± .0 0 0 8 in)

U n d e rs ize Jo u rn a l 0 .508 nun (.020 0 in)

8 1 .4 9 2 ± 0 .0 2 0 m m (3.2083 ± 0008 in)

U n d e rs ize Jo u rn a l (0 .76 2 m m (.0300 in)

8 1 .2 3 8 ± 0 .0 2 0 m m (3 .19 8 3 ± 0008 in)

Clearance between bearing and journal (new) ... 0.066 to 0.165 mm (.0026 to .0065 in)

Main Bearing Journal

M A IN B E A R I N G J O U R N A LOriginal S iz e Jo urnal

10 0 .0 0 0 ± 0 .0 2 0 mm (3 .9 3 70 ± .0 0 0 8 in)

U n d e rs ize Jo u rn a l 0 .5 0 8 m m (.0 2 0 0 in)

9 9 .4 9 2 ± 0 .0 2 0 m m (3 .9 1 7 0 ± 0008 in)

U n d e rs ize Jo u rn a l (0 .76 2 m m (.0300 in)

9 9 .2 3 8 ± 0 .0 2 0 m m (3 .9 0 70 ± .0006 in)

Clearance between bearing and journal (new) ... 0.081 to 0.181 mm (.0032 to .0071 in)



Main Bearing Bore

M A I N B E A R I N G B O R EOriginal S iz e Bora In B lo ck

10 8 .0 0 0 ± 0 .0 1 3 mm (4.2 5 2 0 ± .0005 in)

O v e rs ize Bora 0-506 mm (.0200 in)

106-508 ± 0 .0 1 3 m m (4 .2 7 2 0 ± .0005 in)



C ATER PILLAR


Connecting RodsSMCS - 1202-010



C2202^P1

(1) Bore in connecting rod for piston pin bearing ... 55.435 ± 0.013 mm (2.1825 ± .0005 in)

NOTE: The connecting rod must be heated for installation of piston pin bearing. Do not use a torch.

(2) Distance rod may be heated to 175 to 260°C (347 to 500°F) to install the piston pin bearing ...85.0 mm (3.35 in)

(3) Bore in bearing for piston pin (new)... 50.830 ± 0.008 mm (2.0012 ± .0003 in)

Diameter of piston pin (new)... 50.795 ± 0.005 mm (2.0000 ± .0002 in)

Thoroughly lubricate piston pin with clean engine oil prior to inserting into piston group and rod assembly.

(4) Bearing joint must be at either location ... ± 10 degrees



(5) Distance between center of bearings ... 225.00 mm (8.858 in)

(6) Bore in bearing for crankshaft journal... 82.116 ± 0.030 mm (3.2329 ± .0012 in)

(7) Location for etching cylinder number on connecting rod and cap. Rods and caps are to be marked with numbers 1 thru 6 on the same side of the rod as the bearing retainer notch.

NOTE: Install connecting rod in engine with the part number to the rear of the engine.

(8) Tighten connecting rod bolts as follows:

a. Before installing bolts, lubricate bolt threads and seating faces of the caps with 2P2506 Thread Lubricant.

b. Tighten each bolt to ... 130 ± 7 N-m (95 ± 5 lb ft).

c. Put an alignment mark on each cap and nut.

d. Tighten each nut an additional... 60 ± 5 degrees (1/6 turn)

(9) Bore in connecting rod for crankshaft rod journal bearing ... 86.800 ± 0.013 mm (3.4173 ± .0005 in)



DATERPIL1AR


Pistons And RingsSMCS - 1202-010

Piston Group.

NOTICE

When handling the piston assembly, be aware that the piston pin plug which fits on the end of the piston pin, is only used to prevent the

piston pin from scuffing the cylinders. It does not retain the pin in the assembly, once the piston assembly is removed from the cylinder, the

pin is free to fall out of the assembly at any time.

(1) Crater. The piston is a symmetrical piston with an "on center" crater.



Thoroughly lubricate piston group 360 degrees in zone (A) with clean engine oil prior to inserting into the block group.

(2) Top piston ring.

Install ring with side marked "UP-1" toward top of piston. Clearance between ends of piston ring when installed in a cylinder liner with a bore size of 125.000 mm (4.9213 in) ... 0.625 ± 0.190 mm (.0250 ± .0075 in)

Increase in clearance between ends of piston ring for each 0.03 mm (.001 in) increase in cylinder liner bore size ... 0.09 mm (.004 in)

Minimum depth of groove in piston for top ring (new) ... 5.43 mm (.214 in)

(3) Intermediate piston ring.

Install ring with side marked "UP-2" toward top of piston. Width of groove in piston for intermediate ring (new) ... 3.061 ± 0.013 mm (.1205 ± .0005 in)

Minimum depth of groove in piston for intermediate ring (new) ... 5.43 mm (.214 in)

Thickness of intermediate ring (new) ... 2.988 ± .013 mm (.1176 ± .0005 in)

Clearance between groove and intermediate ring (new)... 0.047 to 0.099 mm (.0019 to .0039 in)

Clearance between ends of piston ring when installed in a cylinder liner with a bore size of125.000 mm (4.9213 in )... 0.625 ± 0.125 mm (.0250 ± .0050 in)


(4) Oil regulating piston ring.

Oil ring spring ends to be assembled 180 degrees from ring end gap (orange colored portion of spring must be visible at ring end gap).

Width of groove in piston for oil ring (new)... 4.033 ± 0.013 mm (.1588 ± .0005 in)

Minimum depth of groove in piston for oil ring (new) ... 3.727 mm (.1467 in)

Thickness of oil ring (new)... 3.987 ± 0.013 mm (.1570 ± .0005 in)

Clearance between groove and oil ring (new) ... 0.020 to 0.072 mm (.0008 to .0028 in)

Clearance between ends of piston ring when installed in a cylinder liner with a bore size of125.000 mm (4.9213 in )... 0.44 ± 0.15 mm (.017 ± .006 in)


After piston rings have been installed, rotate rings so the end gaps are 120 degrees apart.

(5) Crown assembly.

(6) Piston pin bore diameter in piston skirt... 50.815 ± .005 mm (2.0006 ± .0002 in)

Piston pin bore diameter in piston crown assembly ... 50.830 ± 0.008 mm (2.0012 ± .0003 in)



Thoroughly lubricate piston pin with clean engine oil prior to inserting into piston group and rod assembly.

(7) Piston skirt.



C ATER PILLAR


Front Housing GroupSMCS - 1202-010

1 2

C22018P1 3

(1) Housing assembly.

(2) Seal. O-ring seal is located in cover.

(3) Seal. O-ring seal and crankshaft front seal are part of the front housing group. Lubricate o-ring seal lightly with lubricant being sealed.



4

CW017P1

Front Housing Assembly.

(4) Housing.

(5) Distance dowels extend above surface of housing ... 8.0 ± 0.5 mm (.31 ± .02 in)



CATERPILLAR'


Front Gear GroupSMCS - 1202-010

1 2 3

(1) Diameter of gear bore for bearing ... 60.163 ± 0.015 mm (2.3686 ± .0006 in)

Diameter of shaft for idler gear ... 55.047 ± 0.020 mm (2.1672 ± .0008 in)

(2) Gear assembly (Idler gear).

(3) Air compressor drive gear.

(4) Front face of the block.

(5) Front timing gear housing.



(6) Camshaft.

(7) Water pump drive gear

(8) Front face of block.

Diameter of shaft for idler gear... 69.321 ± 0.020 mm (2.7292 ± .0008 in)

(9) Oil pump drive gear.

(10) Idler gear.

(11) Crankshaft.

(12) Crankshaft gear. Heat gear to a maximum temperature of 316°C (601°F) for installation.

(13) Idler gear. Diameter of gear bore for bearing ... 74.452 ± 0.015 mm (2.9312 ± .0006 in)

(14) Hydraulic pump drive gear.

(15) Align timing marks on idler gear with marks on crankshaft gear and camshaft gear as shown.

Typical Example Of Gear Assembly For Idler Gears

(16) Inside diameter of bearing [installed in idler gear (12)]... 55.163 ± 0.041 mm (2.1718 ± .0016 in)

Inside diameter of bearing [installed in idler gear (10)] ... 69.452 ± 0.041 mm (2.7343 ± .0016 in)

(17) Gear.

(18) Bearing.

(19) Distance between front face of bearing in gear bore and front face of gear [idler gear (12)]...1.00 ± 0.25 mm (.039 ± .010 in)

Distance between front face of bearing in gear bore and front face of gear [idler gear (10)]... 1.00 ±0.25 mm (.039 ±.010 in)



C ATER PILLAR


Flywheel RunoutSMCS - 1202-010

Face Runout (Axial Eccentricity) Of The Flywheel:

Checking Face Runout Of The Flywheel (Typical Example)

1. Install the dial indicator as shown. Put a force on the flywheel toward the rear.

2. Set the dial indicator to read 0.0 mm (.00 in)

3. Turn the flywheel and read the indicator every 90 degrees. Put a force on the flywheel to the rear before each reading.

4. The difference between the lower and higher measurements taken at all four points must not be more than 0.15 mm (.006 in) which is the maximum permissible face runout (axial eccentricity of the flywheel).



Bore Runout (Radial Eccentricity) Of The Flywheel:

Checking Flywheel Bore (Typical Example)



Checking Flywheel Clutch Pilot Bearing Bore (Typical Example)

1. Install the dial indicator (3) and make an adjustment of the universal attachment (4) so it makes contact as shown.

2. Set the dial indicator to read 0.0 mm (.00 in)

3. Turn the flywheel and read the indicator every 90 degrees.

4. The difference between the lower and higher measurements taken at all four points must not be more than 0.15 mm (.006 in), which is the maximum permissible bore runout (radial eccentricity) of the flywheel.

5. Runout (eccentricity) of the bore for the pilot bearing for the flywheel clutch, must not exceed0.13 mm (.005 in)



C ATER PILLAR


Flywheel Housing RunoutSMCS - 1202-010

Face Runout (Axial Eccentricity) Of The Flywheel Housing:

8T5096 Dial Indicator Group Installed (Typical Example)



C (TOP)

A1Q233P1 A (BOTTOM)

1. Fasten a dial indicator to the crankshaft flange so the anvil of the indicator will touch the face of the flywheel housing.

2. Put a force on the crankshaft toward the rear before reading the indicator at each point.

3. With dial indicator set at 0.0 mm (.00 in) at location (A), turn the crankshaft and read the indicator at locations (B), (C), and (D).

4. The difference between lower and higher measurements taken at all four points must not be more than 0.30 mm (.012 in), which is the maximum permissible face runout (axial eccentricity) of the flywheel housing.



C ATER PILLAR


Flywheel Housing BoreSMCS - 1202-010

Typical Example



C (TOP)

A10233P1 A (BOTTOM)

CHART FOR DIAL INDICATOH MEASUREMENTS

Position of dial indicator

LineNo. A B C D

Correction tor bearing clearance 1 0

Dial Indicator Reading M 0

Total of Line 1 & 2 III 0 * # * * #

'Total Vertical eccentricity lout of ruund), ““Subtract the smaller No. from the larger No,

the total horizontal eccentricity.The difference is

A10234P1

NOTE: Write the dial indicator measurements with their positive (+) and negative (-) notation (signs). This notation is necessary for making the calculations in the chart correctly.



1. Fasten the dial indicator to the flywheel so the anvil of the indicator will touch the flywheel housing bore. With the dial indicator in position at (C), adjust the dial indicator to "0" (zero). Push the crankshaft up against the top bearing. Write the measurement for bearing clearance on line 1 in column (C).

2. Divide the measurement from Step 1 by 2. Write this number on line 1 in columns (B) & (D).

3. Turn the crankshaft to put the dial indicator at (A). Adjust the dial indicator to "0" (zero).

4. Turn the crankshaft counterclockwise to put the dial indicator at (B). Write the measurement in the chart.

5. Turn the crankshaft counterclockwise to put the dial indicator at (C). Write the measurement in the chart.

6. Turn the crankshaft counterclockwise to put the dial indicator at (D). Write the measurement in the chart.

7. Add lines I and II by columns.

8. Subtract the smaller number from the larger number in line III in columns (B) & (D). The result is the horizontal "eccentricity" (out of round). Line III, column (C) is the vertical eccentricity.

nrmfir)

UJ>

I

£t= (.008!

IllOG^ ± 0 .1 53 ! (.006)

±0.10(.004)

±0.05t0O2)

1I

^ Nfj r aci ! I ; c e p t a b l e

ACC EPTA8LE N— n

—\\

j. n i- ........... — 1

■+ n tv 1

CIBftUP'(.002) {.004) ( 006) (.008) {,010}

■raFTAL HORIZONTAL ECCENTRICITY

± 0 .3 0 m m (.012m )

9. On the graph for total eccentricity find the point of intersection of the lines for vertical eccentricity and horizontal eccentricity.

10. If the point of intersection is in the range marked "Acceptable" the bore is in alignment. If the point of intersection is in the range marked "Not Acceptable" the flywheel housing must be changed.



C ATER PILLAR


Coolant And Fuel Temperature SensorsSMCS - 1202-010

c VIEW A—AC53895P1

(1) Sensor assembly.

(2) Receptacle (with Pins A,B, and C).

W IR IN G T A B L EPin or

S o c k e tW ire

C o lo rCircuit

S u p p lie dD e sire d

IndicationA O R V S + 5 VB B L G N D C o n tin u ity to

g rou n dC W H S IG 0 ,3 to 4 ,7 V



C ATER PILLAR


Oil, Boost, Atmospheric Pressure SensorsSMCS - 1202-010


(2) Receptacle (with Sockets A, B, and C).

W IR IN G T A B L EPin o r

S o c k e tW ireC o lo r

C ircuitS u p p lie d

D e sire dIndication

A O R V S + 5 VB Y L G N D C o n tin u ity to

groun dC G N S IG 0.3 to 4 .7 V


3176B DIESEL TRUCK ENGINE____________________________________________________________________________________________SENR5560-01

C ATER PILLAR


Inlet Air Temperature SensorSMCS - 1202-010

VIEW A—A


(2) Receptacle (with Pins A,B, and C).


S o c k e tW ireC o lo r

CircuitS u p p lie d

D esiredIndication

A O R V S + 5 VB B K G N D C o n tin u ity to

g rou n dC W H S IG 0 .3 to 4 .7 V



C ATER PILLAR


Speed/Timing SensorSMCS - 1202-010

A

r :

i

c

(1) Receptacle (with Sockets A, B, and C).

(2) Sensor assembly. Tighten to a torque o f ... 40 ± 5 N-m (30 ± 4 lb ft)


S o c k e tW ire

C o lo rCircuit

S u p p lie dD e sire d

Indication

A1

O R V S 1 2 .2 to 1 4 .2 V

----------------------B B K G n d C o n tin u ity to

grou n d

C W H S IG P M W O u tp u t



Pedal-Mounted Throttle Sensor

(1) Control assembly.

(2) Plug (with sockets A, B, and C).



C ATER PILLAR


Support Group-Engine (Front)SMCS - 1202-010

Typical Example

(1) Tighten bolts to a torque of... 105 ± 20 N m (75 ± 15 lb ft)

(2) Front housing group.



C ATER PILLAR


Flywheel GroupSMCS - 1202-010

Typical Example

Make reference to Flywheel Runout for correct method of flywheel inspection.

(1) Flywheel starter gear. Gear must be assembled against shoulder (A) of the flywheel. Maximum temperature of gear when shrinking in place ... 315°C (599°F)

(2) Flywheel.



(3) Apply 5P3413 Thread Sealant to bolts and torque to a torque o f ... 270 ± 40 N-m (200 ± 30 lb ft)



C ATER PILLAR


Adapter Group-Engine To TransmissionSMCS - 1202-010

C31926P1

Typical Example

(1) Flywheel.

(2) Adapter.

(3) Apply 5P3413 Thread Sealant to bolts and torque to a torque o f ... 270 ± 40 N-m (200 ± 30 lb ft)

(4) Apply 9S3263 Thread Lock to bolts and torque to a torque o f ... 70 ± 15 N-m (50 ± 11 lb ft)



DATERPIL1AR


Damper GroupSMCS - 1202-010

CS2 0 O6P2


(2) Crankshaft.

(3) Tighten bolts to a torque of... 270 ± 40 N m (200 ± 30 lb ft)

(4) Pulley [the diameter of the standard pulley is approximately 190 mm (7.5 in), and the diameter of the attachment pulley is approximately 228 mm (9 in)].

(5) Maximum face runout... 2.032 mm (.080 in)



CATERPILLAR'


Belt Tightener GroupSMCS - 1202-010

C 2S 025P 1



Belt Tightener.

1) Alternator.

2) Belt.

3) Front housing.

4) Stops (for belt tightener travel).

5) Pry hole [12.9 mm (.50 in) square for 12.7 mm (1/2 in) drive ratchet]

6) Belt tightener travel (installed on engine) ... 71 degrees minimum

7) Belt path on the damper pulley.

8) Pulley width ... 36.1 mm (1.4 in)

9) Pulley width crown ... 0.36 mm (.014 in) max.

10) Pulley diameter ... 73.9 ± 0.5 mm (2.90 ± .02 in)

11) Protrusion of dowel (used to position belt tightener on front cover of engine)... 6.3 ± 0.5 mm .25 ± .02 in)



C ATER PILLAR


Auxiliary Drive Adapter Group (Front power take off)SMCS - 1202-010




(2) Pulley.

(3) Adapter.

(4) Crankshaft.

(5) Tighten bolts to a torque o f ... 300 ± 40 N m (220 ± 30 lb ft)

(6) Tighten bolts to a torque of... 70 ± 15 N-m (50 ± 11 lb ft)



BELT TENSION CHART

BELT Siz e

WlOTHWIDTH TOP OF PULLET

BELT TENSION "IN ITIAL1*

BELT TENSION "USED11’* BOftftOUGHS GAUGE NUMBERS

GROOVE ■SAUCE READING GAUGE REAPING

fttiYi in. * m in. N lb N ID OLD GAUGE NO- NEW GAUGE NO.

1(J 72 .422 9.G5 ' 3B0 440 ± 22 iCO ± a 403 ± 22 go ± 5 ST 33-95 HT-S3-97

1 3 as .547 t2 70 500 534 i : 22 120 + 5 403 ± 44 go ± 10 ST-J3-95 BT

5V i ; . a s 623 TS 61HO 534 ± ?? i?Q + S 4 0 0 + 44 9 0 + 1 0 RT-03-72-4-15 BT-33-72C

1 1;1& l j - j f . ses 1&.BB ' 025 ' S34 ± 22 120 ± 5 409 i 44 30 ± 10 BT-33-7S-4--5 RT-30-72C

3H 19 OS ■ .733 ■7 53 . .690 534 = 22 120 ± 5 400 + 44 9 0 1 10 bT-03-72-4-15 UT-OS-'/SC

15ft5 23 03 ■963 22.30 676 534 ± 2£ 120 ± 5 400 ± 44 90 ± 10 6T 33 72 4 IS BT-33-75C

■0K. 27 92 . 1.093 : 330 i 22 1 SO ±-5 4 S & ± 44 110 ± 10 ET S3 109

ME ASuFlF TENSION OF FlFL 1 FARTHEST FHQVI I HL LNL.INL

' IN IT AL' Ft.I=LT TENSION is Isr J new Colt ,L USED B E L ' 1 ENSION is lor a Sell w flV*i has m gre 1han 3C mTutaa o i operat>cn ai reieu speed et engine. A1O202-4P1



DATERPIL1AR


Alternator


SMCS - 1202-010

9L5938 12V 65ARotation ... CW or CCW.

Polarity... negative ground.

Rated output (cold)... 58A

Test speed... 5000 rpm

Output voltage ... 14.0 ± .5V

Field current at 12V and 27°C (80°F)... 5.2 to 5.8A

(1) Torque for pulley nu t... 100 ± 7 N-m (75 ± 5 lb ft)

(2) Terminal torques:


Torque for battery connection nu t... 3.7 ± 0.8 N-m (32.5 ± 7.5 lb in)

Torque for ground connection nu t... 9.0 ± 3.0 N m (80 ± 27 lb in)




C ATER PILLAR


RegulatorSMCS - 1202-010

C21G74P3

9L6774Voltage rating... 12V

Polarity... negative ground.

Voltage range ... 14.0 ± .5V



C ATER PILLAR


Electric Starter MotorSMCS - 1202-010

C21S93P1

8C3592 12VRotation as seen from drive end... Clockwise

No load conditions:

Speed (rpm)... 6650 ± 1150

Current (amps) ... 100 to 170

Voltage ... 11.0

(1) Terminal nuts.

Torque for large terminal nuts ... 30 ± 3 N-m (22 ± 2 lb ft)

Torque for small terminal nuts ... 2.6 ± 0.8 N-m (23 ± 7 lb in)

(2) Bolts.

Torque for screws holding nose housing to lever housing ... 23.7 ±6.1 N-m (210 ± 54 lb in)



Torque for motor terminal bolt... 9.6 ±1.1 N-m (85 ± 10 lb in)

Torque for solenoid mounting bolts ... 17.8 ± 3.7 N m (158 ± 33 lb in)

Clearance between pinion and housing (pinion clearance)... 8.3 to 9.9 mm (.33 to .39 in)



C ATER PILLAR


Starter SolenoidSMCS - 1202-010

1

C12U13P1

8T8818(1) Terminal nuts.

Torque for large terminal nuts ... 30 ± 3 N-m (22 ± 2 lb ft)

Torque for small terminal nuts ... 2.6 ± 0.8 N-m (23 ± 7 lb in)

Current consumption (draw):

Pull in windings at 5V ... 34 to 46A

Hold in windings at 10V ... 16.5 to 20A




Documents

Specification - Barrington Diesel Club · Standard Torque For Metric Fasteners Exceptions to these torques are given in this specification module where needed. Refer to Torque Specification