Crankshaft, Measuring Radial Clearance

WARNING: This page is about a different car, the 2012 Audi Q5, 2011 Audi Q5, 2010 Audi Q5, and 2009 Audi Q5. 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.

If the bearing shells are worn down to the nickel layer, they must be replaced.

-- 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 the old bolts to the final tightening specification, refer to -item 7- Long Bolt, Large Shoulder (See Figure). Do not turn crankshaft.

-- Install the guide frame.

-- Compare width of Plastigage^® with calibrated scale.

Radial clearance:

New: 0.015 to 0.055 mm.
Wear limit: 0.080 mm.

-- Replace bolts for the final assembly.