Ford Explorer: Engine System - General Information / General Procedures - Valve Guide Inner Diameter

Ford Explorer 2020-2026 Service Manual / Powertrain / Engine / Engine System - General Information / General Procedures - Valve Guide Inner Diameter

Check

NOTE: Refer to the appropriate Section 303-01 for the specification.

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.

General Procedures - Spark Plug Inspection

Inspection NOTE: Dropped spark plugs should always be discarded. Unfired An unfired spark plug should appear very clean with a pure nickel finish to the threads and ground strap..

General Procedures - Valve Stem Diameter

Check NOTE: Refer to the appropriate Section 303-01 for the specification. Measure the diameter of each intake and exhaust valve stem at the points shown...

Other information:

Ford Explorer 2020-2026 Service Manual: Description and Operation - Important Safety Instructions

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Ford Explorer 2020-2026 Owners Manual: Principle of Operation

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