Valve Guides, Checking
Special tools and workshop equipment required
- Dial Gauge Holder VW387
- Dial Gauge - 0-10mm VAS6079
Test Sequence
-- Insert the valve into guide. Valve stem end must be flush with the guide. Due to differences in valve stem diameter, make sure that only intake valves are used to check intake valve guides, and only exhaust valves are used to check exhaust valve guides.
-- 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.