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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System - General Information >> Component Test(S) >> Valve Seat Inspection >> General Procedure

General Procedure

NOTE: For specifications refer to the appropriate engine mechanical article. For 2.0L GTDI, refer to the GENERAL SPECIFICATIONS , or for 3.5L Ti-VCT, refer to the GENERAL SPECIFICATIONS tables.
NOTE: After grinding valves or valve seats, always check valve clearance.
  1. Check the valve head and seat.
    • Check valve angles.
    • Check margin width.
    • Be sure margin width is within specification.
    Fig 1: Identifying Valve Angles And Margin Width
    G06289047Courtesy of FORD MOTOR CO.
  2. Inspect for abnormalities on the valve face and seat. Install a new cylinder head assembly if abnormalities are found.