Cherokee 2WD L6-4.0L VIN S (1998)
Connecting Rod Bearing Fitting Chart
10. The clearance is measured with a pair of 0.0254 mm (0.001 inch) undersize bearing inserts installed. This will determine if two 0.0254 mm (0.001
inch) undersize inserts or another combination is needed to provide the correct clearance.
11. FOR EXAMPLE: If the initial clearance was 0.0762 mm (0.003 inch), 0.025 mm (0.001 inch) undersize inserts would reduce the clearance by
0.025 mm (0.001 inch). The clearance would be 0.002 inch and within specification. A 0.051 mm (0.002 inch) undersize insert would reduce the
initial clearance an additional 0.013 mm (0.0005 inch). The clearance would then be 0.038 mm (0.0015 inch).
12. Repeat the Plastigage measurement to verify your bearing selection prior to final assembly.
13. Once you have selected the proper insert, install the insert and cap. Tighten the connecting rod bolts to 45 Nm (33 ft. lbs.) torque.
SIDE CLEARANCE MEASUREMENT
Fig.20 Checking Connecting Rod Side Clearance-Typical
Slide snug-fitting feeler gauge between the connecting rod and crankshaft journal flange. Replace the connecting rod if the side clearance is not
within specification.
