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Old 02-11-2019, 07:12 AM   #7
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,273
Quote:
Originally Posted by Anker View Post
AOS can't pressurize the crank case. It uses vacuum to lower the crank case pressure.
Correct, but if the AOS fails, blow by from the low tension piston rings will.
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