Crankshaft

Crankshaft Main Bearing Journal Diameter

General Equipment:

General Equipment





1. Measure the diameter of the main bearing journals and the big-end bearing journals.
^ Repeat the measurement with the micrometer offset by 90 degrees, in order to determine any eccentricity which may be present.
^ Measure the journal at two different positions to determine any conicity which may be present.

Crankshaft Main Bearing Journal Clearance

Special Tools:

Special Tool(s)

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

1. Remove the crankshaft main bearing caps and crankshaft main bearing.





2. Lay a piece of Plastigage across the face of each crankshaft main bearing surface.

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

Install and remove the crankshaft main bearing cap.





4. Verify the crankshaft journal clearance.
^ If out of specification, install new components as necessary.

Crankshaft End Play





General Equipment





1. NOTE: Carry out the following operation for vehicles with Zetec-E and 2.3L engines only.

Dismantling the crank gear is not permitted on Zetec-SE engines.
Determine the end float.
^ Attach the dial indicator and bracket.
^ Determine the end float by raising the crankshaft with the aid of a screwdriver.
^ If necessary, correct the end float by using new thrust half washers.