F 450 2WD Super Duty V10-6.8L VIN S (1999)
1. Check the valve head and seat.
^
Check valve angles.
^
Check margin width.
^
Be sure margin width is within specification.
2. Inspect for abnormalities on the valve face and seat.
1. Check the valve head and seat.
^
Check valve angles.
^
Check margin width.
^
Be sure margin width is within specification.
2. Inspect for abnormalities on the valve face and seat.