Valve and Seat Refacing Measurements

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. 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.

Check the valve head and seat.
- Check valve angles.
- Check margin width.
- Refer to appropriate ENGINE article for the procedure.
- 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.