Camshaft, Measuring Radial Clearance
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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.