Valve and Seat Refacing Measurements

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to the appropriate ENGINE article service information 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: Checking Margin Width And Valve Angles
Courtesy of FORD MOTOR CO.
Inspect for abnormalities on the valve face and seat. Install a new cylinder head assembly if abnormalities are found.