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.
Valve Inspection
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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.