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Valve Spring Squareness

  1. Measure the out-of-square on each valve spring.
    • Turn the valve spring and observe the space between the top of the valve spring and the square. Install a new valve spring if out of square. Refer to IN-VEHICLE REPAIR for the procedure.
    Fig 1: Measuring Valve Spring Out-Of-Square
    G03885054Courtesy of FORD MOTOR CO.