Valve Guide: Testing and Inspection

Valve Guide Wear, Checking

Special tools, testers and auxiliary items
^ Dial indicator
^ Holder VW 387
^ New intake and exhaust valves (2)

Checking

- Place new valve in guide.

^ Valve stem end must be flush with guide

CAUTION!
Intake guides and exhaust guides have different diameters. Be sure to insert an intake valve in intake valve guides and an exhaust valve in exhaust valve guides.

- Install VW387 and dial indicator on cylinder head, adjacent to guide being checked.





- Rock valve back and forth (arrows) against dial indicator and note total travel.

Wear limit

^ Intake valve guide: 1.0 mm (0.040 in.)

^ Exhaust valve guide: 1.3 mm (0.051 in.)