Valve: Service and Repair

Valve Stem Diameter





1. Measure the diameter of each intake and exhaust valve stem at the points shown. Verify the diameter is within specification.

- If out of specification, install new components as necessary.

Valve Inspection





1. Inspect the following valve areas:
1 The end of the stem for grooves or scoring
2 The valve face and the edge for pits, grooves or scores
3 The valve head for signs of burning, erosion, warpage and cracking
4 The valve margin for wear