Valve Guides, Checking
Special tools and workshop equipment required
- Dial Gauge Holder VW 387
- Dial Gauge 0-10 mm VAS 6079
Test Sequence
-- Insert the valve into guide. Valve stem end must be flush with the 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 tip clearance.
Wear Limit
| Intake Valve Guide | Exhaust Valve Guide |
|---|---|
| 0.80 mm | 0.80 mm |
NOTE:
If wear limit is exceeded, measure again 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.