Connecting Rod, Measuring Radial Clearance
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
Proceed as follows:
-- Remove bearing cap.
-- Clean bearing cap and bearing journals.
-- Place Plastigage over entire width of bearing journal or into bearing shells.
- Plastigage must rest in center of bearing shell.
-- Position the bearing cap and tighten the old bolts, refer to -Item 1- PISTONS AND CONNECTING ROD OVERVIEW without turning the crankshaft.
-- Reinstall bearing cap.
-- Compare width of Plastigage with calibrated scale.
Radial clearance:
- New: 0.02 to 0.07 mm.
- Wear limit: 0.10 mm.
-- Replace connecting rod bolts.