Valve Guide: Testing and Inspection

Valve guides, checking
Special tools, workshop equipment, testers, measuring instruments and auxiliary items required





^ VW 387 Universal dial gauge bracket
^ Dial gauge





Test sequence
- Insert new valve into guide until end of valve stem is flush with end of guide. Due to the slight difference in stem dimensions, make sure that only an intake valve is used in the inlet guide and an exhaust valve in the exhaust guide.
- Determine rock. Wear limit: 0.8 mm
If rock tolerance is exceeded:
- Replace cylinder head.