Camshaft, Measuring Radial Clearance

WARNING: This page is about a different car, the 2022 Audi S7 and 2022 Audi Q7. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Plastigage^®

Procedure

Use the old bolts for radial clearance measurement.

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

-- Mark the allocation 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 the Plastigage^® over entire width of bearing journal or into the bearing.

The Plastigage^® must rest in center of bearing.

-- Reinsert the camshafts, mount the camshaft housing and tighten with an additional turn Refer to Figure, do not turn the camshafts while doing this.

-- Remove the camshaft housing and the camshafts again.

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

Radial clearance:

0.024 to 0.066 mm.

-- Replace the bolts for the final assembly.