Radial Clearance, Measuring

WARNING: This page is about a different car, the 2010 Audi Q7, 2009 Audi Q7, 2008 Audi Q7, and 2007 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

NOTE:

Marked the used bearing for installation later, but not on the running surface.

Replace bearing shells worn down to the base layer.

-- Remove guide frame and clean journals.

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

Plastigage® must rest in center of bearing shell.

-- Install guide frame and tighten to 30 Nm. Do not turn crankshaft.

-- Remove guide frame again.

-- Compare width of Plastigage® with measuring scale.

Radial clearance:

New: 0.017 to 0.044 mm.
Wear limit: 0.08 mm.