Connecting Rod Bearing Journal-to-Bearing Clearance

Refer to the appropriate Section 303-01 for the specification.

The crankshaft connecting rod journals must be within specifications to check the connecting rod bearing journal clearance.

1. 1
   Remove the connecting rod bearing cap.
2. 2
   Position a piece of Plastigage across the bearing surface.

1. 1
   NOTE: Do not turn the crankshaft during this step.

   Install and tighten to specifications, then remove the connecting rod bearing cap.

2. 2
   Measure the Plastigage to get the connecting rod bearing journal clearance. The Plastigage should be smooth and flat. A changing width indicates a tapered or damaged connecting rod or connecting rod bearing.