Not really a problem at all... - Saab 9000 Bulletin Board - Saabnet.com
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Not really a problem at all...
Posted by Kyle [Email] (more from Kyle) on Thu, 21 Feb 2002 10:32:47
In Reply to: Check valve is blowing off.., max, Wed, 20 Feb 2002 17:59:42
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The length of hose between the check valve and the intake is constantly under high pressure from the turbo boosting.
The check valve allows air to flow from the valve cover into the intake when the intake is under vaccuum. As soon as the vaccum changes to positive pressure under boost, the check valve closes and prevents pressure from going back into the valve cover and blowing the seals. The hose blows off because it isn't held onto the nipple tight enough. Just take a little wire tie and tighten the hose onto the check valve. In fact, it's probably a good idea to put wire ties on all of the vaccuum hoses. Enjoy!
-Kyle
posted by 64.65.19...
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