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Home >> Lincoln >> 2002 >> Navigator RWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System-General Information >> General Procedures >> Valve - Spring Squareness

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. For the procedure, refer to ENGINE - 4.6L AND 5.4L (2V) for Expedition or ENGINE 5.4L (4V) for Navigator.
    Fig 1: Measuring Out-Of-Square On Valve Spring
    G03442293Courtesy of FORD MOTOR CO.
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