Auto Parts and Repairs
Spark Plugs and Wires
Ford Explorer Eddie Bauer
Ford Explorer XLT

Can you repair the head place where the spark plug screws into the engine if it is stripped by using a product that you insert into the head?


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Wiki User
2015-07-15 21:36:59
2015-07-15 21:36:59

There is aproduct called 'heli-coil' that should be avail. through auto parts stores or some machine shops.


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Here are 3 options for you at this point: 1. Bring the head into an automotive machine shop for them to repair it; 2. Repair the stripped hole in the head with an insert 3. Buy a new head, rebuild the engine from the head gasket up.

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You'll need to have an insert drilled and tapped into the head. To do it right, the head should be removed and taken to a machine shop.

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You might try to use krol as this oil can creep into the smallest cracks to help loosen the spark plug. The next problem will be the threads probably will be stripped. Use a Time-Sert insert to repair the stripped threads. Good luck!

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If the sensor is stripped you will have to replace it. If the fitting or hole it threads into is stripped it is likely you can make oversize threads and use a fitting called a bushing to repair it. Mind you I got desperate one night and epoxied one in. Its still working but if I ever have to change it I am toast.

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Auto Part Stores sell oil plugs that are self-tapping. What you do is buy one that has a slightly greater pitch and re-tap the the drain hole with the new plug. Here is a good write-up on this: But it is always perfered to repair the thread back to its original size. Use a TIME-SERT to repair the stripped threads with a steel insert. ----------------------------------------------------------

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