Valve Guide Inner Diameter
WARNING: This page is about a different car, the 2017 Ford F-550 Super Duty, 2017 Ford F-450 Super Duty, 2017 Ford F-350 Super Duty, and 2017 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
For information on Ford Color Coded Illustrations refer to OEM Color Coding .
Check
NOTE:
Refer to the appropriate Engine article for the specification.
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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.