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Old 07-30-2016, 06:15 AM   #12
JFP in PA
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Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,614
Quote:
Originally Posted by Gforrest2 View Post
The easy check would be to see if you could remove your oil cap while the engine was running.
That does not always work with an AOS that has begun to fail (oil fill vacuum in the 5-8" of water), but does work on units well into failure (vacuum over 10" of water).
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