Crankshaft Radial Play, Checking

Crankshaft Radial Play, Checking

Special tools, testers and auxiliary items required

• Plastigage(R)

Conditions

• Do not rotate the crankshaft when checking the radial clearance.

Test Sequence

• Do not interchange used bearings.

• Bearing shells that are worn down to the nickel layer must be replaced.

- Remove the main bearing cap and clean the bearing cap and pins.

- Place Plastigage(R) over the entire width of the bearing journal or into the bearing shell.

• The Plastigage(R) must rest in the center of the bearing shell.

- Install and tighten the main bearing cap. Do not rotate the crankshaft while doing this.

- Remove the main bearing cap again.

- Compare the width of the Plastigage(R) with the measuring scale.

Radial clearance:

• New: 0.023 to 0.043 mm

• Wear limit: 0.07 mm