Crankshaft, Measuring Radial Play

Crankshaft, Measuring Radial Play

Special tools, testers and auxiliary items required

• Plastigage

Procedure

• 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 the Plastigage over the entire width of the bearing journal or into the bearing shell.

• The plastigage must rest in the center of the bearing shell.

- Position the main bearing cap and tighten it to 60 Nm. Do not rotate the crankshaft when doing so.

- Remove the main bearing cap again.

- Compare the width of the Plastigage with the measuring scale.

Radial clearance:

• New: 0.017 to 0.037 mm.

• Wear limit: 0.15 mm.