Valve Guide: Testing and Inspection

Valve Guides, Checking

Special tools, testers and auxiliary items required

• Dial Gauge Holder (VW 387)

• Dial Gauge (VAS 6079)

Procedure

• 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.

- Secure (VAS 6079) to cylinder head with (VW 387).





- Place valve in valve guide.

• The end of the valve stem must be flush with the guide.

- Determine tip clearance.

• Wear limit: 1.0 mm.

- If wear limit is exceeded, measure using new valves.

- If wear limit is still exceeded, replace cylinder head.

• The valve guides cannot be replaced.