Valve Guide: Testing and Inspection

Valve Guides, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW387)

• Dial gauge (VAS 6079)

Work procedure





- Insert valve into valve guide.

• Valve stem tip must seal with valve guide.

• Due to the slight difference in stem dimensions, ensure that only an intake valve is used in the intake guide and an exhaust valve in the exhaust guide.

- Determine tilt clearance:

• Wear limit: 0.8 mm.

• If wear limit is exceeded, re-measure 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.