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Old 10-22-2008, 07:19 PM   #18
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Join Date: Jul 2008
Location: Austin, TX
Posts: 124
Quote:
Originally Posted by Jaxonalden
Quote;

"One of my colleagues who is particularly mechanically inclined told me today that it is quite normal for plugs to develop leaks over time as the metal they are made of expand while the ceramic doesn't."

Are you thinking that the oil came from a leaking spark plug because the metal expanded and oil leaked around the metal and ceramic? I don't mean to debunk you friend but I have never (in my 44 years) heard of a spark plug leaking anything. If it did it would be extremely hot, highly pressurized exhaust gas. I have heard of blowing the plug out of a head because of stripped threads or just being loose but never leaking oil.

Your oil problem is from a leaking spark plug tube O-ring.

Fair enough. I am planning on changing them. Another friend from PCA told me he changed his tubes at 110k so perhaps my 120k service effort is a good time to do it.
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