Crankshaft, Measuring Radial Clearance

WARNING: This page is about a different car, the 2015 Audi S7, 2015 Audi RS 7, 2014 Audi S7, 2014 Audi RS 7, and 2013 Audi S7. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Plastigage®

Procedure

NOTE:

Use old bolts to measure radial play.

-- Remove the guide frame and clean the bearing journals.

-- Place the Plastigage® over the entire width of the bearing journal or into the bearing shells.

Plastigage® must rest in center of bearing shell.

-- Position the guide frame and tighten it with an additional turn; do not turn the crankshaft, refer to Figure.

-- Install the guide frame.

-- Compare width of Plastigage® with calibrated scale.

Radial clearance:

New S6/S7: 0.017 to 0.044 mm.
New RS6/RS7: 0.017 to 0.033 mm.
Wear limit: 0.08 mm.

-- Replace bolts for the final assembly.