Jeep Workshop Service and Repair Manuals

Crankshaft: Specifications

GENERAL SPECIFICATIONS 

Bearing Journal Diameter 
No.1 ........................................................................................................................................................................  51.54 to 51.56 mm (2.029 to 2.030inch)
No.2 ........................................................................................................................................................................  51.28 to 51.31 mm (2.019 to 2.020inch)
No.3 ........................................................................................................................................................................  51.03 to 51.05 mm (2.009 to 2.000inch)
Base Circle Runout ............................................................................................................................................................  0.03mm-max. (0.001 inch -max.)
Valve Lift .............................................................................................................................................................................................  10.29mm (0.405inch)

Crankshaft

Endplay ................................................................................................................................................................  0.038 to 0.165mm (0.0015 to 0.0065inch)
Main Bearing Journal
Diameter No.1-6 .............................................................................................................................................  63.489 to 63.502mm (2.4996 to 2.5001 inch)
Main Bearing Journal 
Diameter No.7 ................................................................................................................................................  63.449 to 63.487mm (2.4980 to 2.4995 inch)
Main Bearing Journal 
Width No.1 .............................................................................................................................................................  27.58 to 27.89mm (1.086 to 1.098 inch)

Main Bearing Journal

Width No.3 ..............................................................................................................................................................  32.28 to 32.33mm (1.271 to 1.273inch)
Main Bearing Journal
Width No. 2-4-5-6-7 ...............................................................................................................................................  30.02 to 30.18mm (1.182 to 1.188 inch)
Main Bearing Clearance ...........................................................................................................................................  0.03 to 0.06mm (0.001 to 0.0025 inch)
Main Bearing Clearance (preferred) ............................................................................................................  0.051mm (0.002 inch )Connecting Rod Journal
Diameter .............................................................................................................................................................  53.17 to 53.23mm (2.0934 to 2.0955 inch)
Connecting Rod Journal Width ..............................................................................................................................  27.18 to 27.33mm (1.070 to 1.076 inch)
Out-Of-Round (Max. All Journals) .........................................................................................................................................  0.013mm (0.0005 inch)Taper
(Max-All Journals) .............................................................................................................................................................................  0.013mm (0.0005inch)

Main Bearing Cap

Bolts .......................................................................................................................................................................................................  108 Nm (80 ft. lbs.)

Main Bearing Brace

Nuts ..........................................................................................................................................................................................................  47 Nm (35 ft. lbs.)