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Valve Spring Squareness

WARNING: This page is about a different car, the 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
    NOTE: This procedure only applies to cylindrical valve springs.
    Fig 1: Measuring Valve Spring Out-Of-Square
    G03885054Courtesy of FORD MOTOR CO.
  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 the appropriate Engine article for the procedure.
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