Explorer Sport Trac 4WD V6-4.0L VIN E (2007)
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Valve Seat: Service and Repair
Valve Seat Inspection
Valve Seat Inspection
Valve and Seat Refacing Measurements
CAUTION: After grinding valves or valve seats, check valve clearance.
1. Check the valve head and seat.
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Check valve angles.
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Check margin width.
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Be sure margin width is within specification.
2. Inspect for abnormalities on the valve face and seat.