Camshaft, Measuring Radial Clearance

Camshaft, Measuring Radial Clearance

Special tools, testers and auxiliary items required

• Plastigage(R)

Procedure

- Remove the camshafts. Refer to => [ Camshafts ] Service and Repair.

- Mark the assignment of the roller rocker lever for installation later.

- Remove the roller rocker lever and place it on a clean surface.

- Clean the bearing and the bearing journals.

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

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

- Install the camshafts, mount the guide frame and tighten the bolts to 8 Nm. Refer to => [ Camshaft Guide Frame Tightening Specifications and Sequence ] Valve Train Overview. When doing this, be careful not to rotate the camshafts.

- Remove the bearing bracket and camshafts.

- Compare width of Plastigage(R) with calibrated scale.

Radial clearance:

• For 24 mm diameter bearings: 0.024 to 0.066 mm

• For 36 mm diameter bearings: 0.032 to 0.078 mm