Econoline E150 1/2 Ton V6-4.2L VIN 2 (1998)
Valve: Testing and Inspection
Inspection
1. Inspect the following valve areas:
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the end of the stem for grooves or scoring (A)
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the valve face and the edge for pits, grooves or scores (B)
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the valve head for signs of burning, erosion, warpage and cracking. Minor pits, grooves and other abrasions may be removed (C)
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the valve head thickness for wear (D)
