Connecting Rod Bearing Journal-to-Bearing Clearance

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: The crankshaft connecting rod journals must be within specifications before checking the connecting rod bearing journal clearance.

Remove the connecting rod bearing cap and connecting rod bearing.
Position a piece of plastigage across the face of the connecting rod bearing surface.

Fig 1: Locating Piece Of Plastigage Across Face Of Connecting Rod Bearing Surface
Courtesy of FORD MOTOR CO.

NOTE: Do not turn the crankshaft during this step.

Install and tighten to specifications, then remove the connecting rod bearing cap.
- For additional information, refer to Engine .
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.

Fig 2: Measuring Plastigage To Get Connecting Rod Bearing Journal Clearance

Courtesy of FORD MOTOR CO.