Camshaft, Measuring Radial Clearance

Special tools and workshop equipment required

Plastigage^®

Procedure

-- Remove the camshafts. Refer to CAMSHAFT, REMOVING AND INSTALLING .

-- 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^® over entire width of bearing journal or into bearing.

Plastigage^® must rest in center of bearing.

-- Reinstall the camshafts, mount the guide frame and tighten the bolts to the final tightening specification. Refer to Figure. Be careful not to rotate the camshafts while doing so.

-- Remove the bearing bracket and camshafts.

-- Compare width of Plastigage^® with calibrated scale.

Radial clearance:

For 24 mm bearing diameter: 0.024 to 0.066 mm
For 36 mm bearing diameter: 0.032 to 0.078 mm

-- Use new bolts for the final assembly.