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ChrisBennet ChrisBennet is offline
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Join Date: Aug 2001
Location: Nashua, NH USA
Posts: 8,089
The factory plug is not a solid disk, it's cup shaped. If you drill a big hole in the middle you might make it harder to tap out. I'm probably overstating the problem.

Then you have your machinist make you some new plugs.

Plug behind fan:

Plug (already removed) from other end of oil gallery, behind flywheel:

Replacement plugs that machinist made for me:

Does that help?
'80 911 Nogaro blue Phoenix!
'07 BMW 328i Coupe
Old 01-11-2005, 04:38 PM
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