Valve Guides
- Check valve stem-to-valve guide clearance. Ensure valve stem diameter is within specification. Valve guide may be replaced if clearance exceeds specification. See CYLINDER HEAD table under ENGINE SPECIFICATIONS at end of article.
- To replace valve guide, use hammer and Valve Guide Remover (J-37985). Drive valve guide out from combustion side of cylinder head. Using hammer and Valve Guide Installer (J-38462), drive valve guide into cylinder head.
- Measure valve stem-to-valve guide clearance. If clearance is less than .0009" (.023 mm) on intake valves or .0012" (.030 mm) on exhaust valve, ream valve guide.