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Valve - Inspection

    Fig 1: Identifying Areas Of Inspection - Valve
    G00984646Courtesy of MAZDA MOTORS CORP.
  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 head thickness for wear