Quote Originally Posted by shadow View Post
Bring it to a mechanic you don't want plugs breaking.


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Yep! Take it to the professional if you can't. Sometimes it is cheaper because you try to avoid making costly mistakes.

On another note, if the spark plugs are accessible, spray penetrating oil to the base of the plugs while they're still warm. Do not handle the spark plugs while they're still hot and still installed. Let them cool off. Aluminum cylinder heads are too easy to get the spark plug holes to get stripped.