Camshaft, Measuring Radial Clearance

WARNING: This page is about a different car, the 2021 Audi RS 7 Sportback. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

Plastigauge^®

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 Plastigauge^® over entire width of bearing journal or into the bearing.

The Plastigauge^® 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 camshafts again.

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

Radial clearance:

0.024 to 0.066 mm.

-- Replace the bolts for the final assembly.