Valve Guides
WARNING: This page is about a different variant/trim than selected.
- Check valve stem oil clearance. Ensure valve stem diameter is within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS. Ream valve guide for valve with oversize valve stem if clearance exceeds specification. See CYLINDER HEAD table under ENGINE SPECIFICATIONS.NOTE: DO NOT ream valve guides from standard to maximum in one step. Ream guides to oversize in gradual steps, so guides are reamed true in relation to valve seat.
- Valves are available with .006" (.15 mm), .016" (.40 mm) and .031" (.80 mm) oversize valve stems. Replace guides if they cannot be repaired using a .031" (.80 mm) oversize reamer.