Thread: BBC Main Seal
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06-25-2005 07:25 PM #1
BBC Main Seal
Embarrassed to ask but... I'm putting together a BBC 427 - 2 piece rear main seal and I cannot remember which way the rear main seal goes in. Does the lip point to the transmission or to the front of the engine ? ... or does it matter ?
Thanks,
Ron D.
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07-03-2005 06:00 AM #2
Just remember that the seal relies on crankcase pressure to push it against the shaft, so it has to "lean in" to that pressure.
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07-03-2005 10:25 AM #3
Originally posted by DennyW
Pcv system, neg pressure in crankcase.Mike
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http://hometown.aol.com/kanhandco2/index.html
Thanks for the inputs guys !
Exhsust system