Ford Focus Service Manual: Valve Seat Width

NOTE:

Refer to the appropriate Section 303-01 for the specification.

1. Measure the valve seat width. If necessary, grind the valve seat to specification.
   • Measure the intake valve seat width.
   • Measure the exhaust valve seat width.
   • Recheck the valve spring installed length after the seats have been ground, and shim the valve springs as necessary to achieve the correct installed spring length.
   • Depending on the engine, check the valve lash. Refer to General Procedures in Section 303-01.