Valve Guide: Testing and Inspection

Valve Guides, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW 387)

• Dial Gauge (VAS 6079)

Test Sequence

- Insert valve into valve guide.

• Valve stem tip must seal with valve 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 tilt clearance.





• Tilt clearance wear limit: Intake and exhaust valve guide 0.8 mm.

• If wear limit is exceeded, re-measure using new valves. If wear limit is still exceeded, replace cylinder head. The valve guides cannot be replaced.

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