Camshaft, Measuring Radial Clearance
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2022 Audi S5, 2022 Audi RS 5 Sportback, 2022 Audi RS 5, 2021 Audi S5, and 2021 Audi RS 5 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.
-- Re-install 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 Plastigauge® with the measuring scale.
Radial clearance:
- 0.024 to 0.066 mm.
-- Replace the bolts for the final assembly.