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Home >> Ford >> 2021 >> Edge Titanium, FWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System - General Information >> General Procedures >> Valve Guide Inner Diameter
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Valve Guide Inner Diameter

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NOTE: Refer to the appropriate Engine System articlefor the specification.
  1. NOTE: Valve guides tend to wear in an hourglass pattern. The ball gauge can be inserted into the combustion chamber side of the valve guide, if necessary.

    • Use a ball gauge to determine the inside diameter of the valve guides in 2 directions at the top, middle and bottom of the valve guide.

    • Measure the ball gauge with a micrometer.

    • If the valve guide is not within specifications, install a new cylinder head assembly.

GFD593274Courtesy of FORD MOTOR COMPANY
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