How to Seal a Spark Plug Oil Leak

What You'll Need
Replacement seal

In order to keep the engine of your car clean and in good working order, it is useful to be aware of the process for repairing a spark plug oil leak. This will involve examining the spark plug and the components used alongside them. By following the necessary steps, you can ensure that the spark plugs work to the best of their ability.

Step 1 – Inspection

Start by examining the engine to determine where the oil leak effecting the spark plug is coming from, which will enable you to determine what steps are necessary for repair. Checking where the leak is coming from will help to find the cause.

Step 2 – Disassemble

You will often find that a oil leaking into the spark plug hole will be caused by the spark plug being fitted incorrectly, or a damaged seal. Remove the spark plug and remove the existing seal, before wiping the surrounding area and the spark plug clean with a rag.

Step 3 – Repair

Repair the spark plug oil leak by fitting a replacement seal, making sure that it's firmly fitted into place. When replacing the spark plug back into position, make sure that it is firmly set, to ensure that a connection is properly made.