Valve and Seat Refacing Measurements

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to the appropriate article in ENGINE MECHANICAL - 2.5L (EXCEPT HYBRID) , ENGINE MECHANICAL - 2.5L - (HYBRID) , ENGINE MECHANICAL - 3.0L (4V) or ENGINE MECHANICAL - 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: 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.