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Valve & Seat Refacing Measurements

WARNING: This page is about a different car, the 2003 Mazda Tribute and 2002 Mazda Tribute. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: After grinding valves or valve seats, check valve clearance.
  1. Check the valve head and seat.
    1. Check valve angles.
    2. Check margin width.
    3. Be sure margin width is within specification. Refer to SPECIFICATIONS .
    Fig 1: Checking Valve Head & Seat
    G01151233Courtesy of MAZDA MOTORS CORP.
  2. Inspect for abnormalities on the valve face and seat.
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