Thread: AOS Failure: what breaks first?
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Old 12-03-2018, 07:38 PM   #12
Gilles
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Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,998
Quote:
Originally Posted by The Radium King View Post
does the crankcase need to be under vacuum or just vented?
I believe the design of the low friction piston rings requires the crankcase vacuum to seal properly.
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Last edited by Gilles; 12-03-2018 at 07:42 PM.
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