Valve Guides, Checking
WARNING: This page is about a different car, the 2022 Audi Q8, 2021 Audi Q8, 2020 Audi Q8, and 2019 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Dial Indicator Holder: VW387
- Dial Gauge - 0-10mm: VAS6079
Procedure
- If the valve is replaced during a repair, use a new valve for measurement.
- Only use an intake valve in the intake valve guide and an exhaust valve in the exhaust valve guide.
-- Secure the : VAS6079 on the cylinder head with the : VW387 as shown.
-- Place the valve in the valve guide.
- Valve stem tip must seal with the valve guide.
-- Determine the tilting clearance.
- Wear limit: 0.8 mm.
-- If the wear limit is exceeded, measure using new valves.
-- Replace the cylinder head if the wear limit is still exceeded. The valve guides cannot be replaced.