Valve Guide: Testing and Inspection

Valve Guides, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW 387)

• Dial Gauge 0-10 mm (VAS 6079)

Test Sequence

- Insert valve into guide. Valve stem end must be flush with the guide. Due to differences in valve stem diameter, make sure that only intake valves are used to check intake valve guides, and only exhaust valves are used to check exhaust valve guides.








- Determine tip clearance.

Wear Limit






• If wear limit is exceeded, measure again using new valves. If wear limit is still exceeded, replace cylinder head.

• If the valve is to be replaced as part of a repair, use a new valve for the calculation.