Crankshaft Main Bearing Journal - Clearance

WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Special Tool

Courtesy of FORD MOTOR CO.

NOTE: Crankshaft main bearing journals must be within specifications before checking journal clearance.

Remove the crankshaft main bearing caps and crankshaft main bearing.
Lay a piece of Plastigage across the face of each crankshaft main bearing surface.

Fig 2: Identifying Lay A Piece Of Plastigage Across Face Of Crankshaft Main Bearing Surface
Courtesy of FORD MOTOR CO.

NOTE: Do not turn the crankshaft while carrying out this procedure.

Install and remove the crankshaft main bearing cap.
Verify the crankshaft journal clearance.
- Refer to the appropriate ENGINE article for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate ENGINE article for the procedure.
Fig 3: Locating Crankshaft Journal Clearance
Courtesy of FORD MOTOR CO.