Valve Springs: Inspection
Measure valve stem oil clearance for each guide and corresponding valve stem. Replace valve guide if not within specification. See CYLINDER HEAD table at end of article.
OVERSIZE VALVE GUIDE SPECIFICATIONS
| Size Mark | Guide Oversize: (mm) | Cylinder Head Bore: In. (mm) |
|---|---|---|
| 5 | .05 | .5138-.5145 (13.05-13.07) |
| 25 | .25 | .5217-.5224 (13.25-13.27) |
| 50 | .50 | .5315-.5323 (13.50-13.52) |