F 450 2WD Super Duty V10-6.8L VIN V (2005)
Valve Seat: Service and Repair
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.
Valve-Seat Width
1. Measure the valve seat width. If necessary, grind the valve seat to specification.
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Measure the intake valve seat width.
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Measure the exhaust valve seat width.
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Recheck the valve spring installed length after the seats have been ground, and shim the valve springs as necessary to achieve the correct
installed spring length.
Valve-Seat Runout
1. Use the Valve Seat Runout Gauge to check valve seat runout.