Crankshaft Main Bearing Journal - Clearance

WARNING: This page is about a different car, the 2004 Ford RV Cutaway, 2004 Ford Econoline, and 2004 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

SPECIAL TOOL(S)

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: Laying 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 MECHANICAL article for the procedure.
- If out of specification, install new components as necessary. Refer to the appropriate ENGINE MECHANICAL article for the procedure.
Fig 3: Identifying Crankshaft Main Bearing Cap
Courtesy of FORD MOTOR CO.