Quote:
Originally Posted by PaulE
I think they isolate the spark plugs from the oil in the top of the cylinder head. The spark plugs go through the cam covers to get screwed into the combustion chamber in the top of the head. The spark plug tubes were eliminated starting with the 3 chain engines in 2002 on the 9996 and 2003 on the Boxster.
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Gotcha. Thank you.
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1998 Porsche Boxster
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