Connecting Rod Bearing Journal-to-Bearing Clearance
WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Refer to the appropriate Engine Mechanical article for the specification.
NOTE:
The crankshaft connecting rod journals must be within specifications to check the connecting rod bearing journal clearance.
- Remove the connecting rod bearing cap.
- Position a piece of Plastigage across the bearing surface.
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NOTE: Do not turn the crankshaft during this step.
Install and tighten to specifications, then remove the connecting rod bearing cap.
- 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.