Valve Seat Inspection

Valve and Seat Refacing Measurements

NOTE: Refer to the appropriate ENGINE - 3.5L for the specification.

NOTE: After grinding valves or valve seats, check valve clearance.

Check the valve head and seat.
- Check valve angles.
- Check margin width.
- Be sure margin width is within specification.
  
  Fig 1: Identifying Valve Margin Width
  Courtesy of FORD MOTOR CO.
Inspect for abnormalities on the valve face and seat. Install a new cylinder head assembly if abnormalities are found.