Valve Guides, Checking
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
- Dial Gauge HolderVW387
- Dial Gauge - 0-10mmVAS6079
Procedure
Proceed as follows:
NOTE:
If valve is replaced during repair, use new valve for measurement.
Due to different stem diameters, only use an intake valve in the intake guide and an exhaust valve in the exhaust guide.
-- Place valve in valve guide.
- Valve stem tip must seal with valve guide.
-- Determine the tilt clearance.
- Wear limit: 0.8 mm.
-- If wear limit is exceeded, measure using new valves.
-- Replace the cylinder head if the wear limit is still exceeded.
NOTE:
The valve guides cannot be replaced.