Crankshaft, Measuring Radial Clearance

Special tools and workshop equipment required 

• Plastigage®

Procedure 

-- Remove the guide frame and clean the bearing journals.

-- Place the Plastigage® over the entire width of the bearing journal or into the bearing shells.

• Plastigage® must rest in center of bearing shell.

-- Position the guide frame and tighten the old bolts to the final tightening specification. Refer to -item  7- (See Figure). Do not turn the crankshaft when doing this.

-- Install the guide frame.

-- Compare width of Plastigage® with calibrated scale.

Radial clearance: 

• New: 0.015 to 0.055 mm.
• Wear limit: 0.080 mm.

-- Replace the guide frame bolts that are tightened with an additional turn.