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      07-06-2023, 02:57 AM   #27
F87source
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Drives: Bmw M2
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Quote:
Originally Posted by gerri View Post
Sorry, the question was not well posed. I wanted to know what length of helicoil you used, 0.5D-1D or 1.5D because the longer it is, the less oil comes out of the cap during an oil change.
1D no longer than this or else you will have excess coil sticking into the oil pan. The reason why is because the stock drain bolt is 17 mm, 1D = 12 mm, and you want the longest insert possible for maximum strength when the bolt is torqued down.
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