Radial Clearance, Measuring

Radial Clearance, Measuring

Special tools, testers and auxiliary items required

• Plastigage

Work procedure

• Do not interchange used bearings

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

- Remove main bearing cap and clean bearing cap and journals.

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

• Plastigage must rest in center of bearing shell.

- Install main bearing cap and tighten to 30 Nm. Do not rotate crankshaft.

- Remove main bearing cap again.

- Compare width of Plastigage with measuring scale.

Radial clearance:

• New: 0.018 to 0.045 mm.

• Wear limit: 0.08 mm.