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For those who care.......
If you don't pin prick the hose with the ball bearing insert with the hose placed back on the tube stub you will induce a vacuum of 2-3 in of Hg from summer to winter temperatures. The positive pressure increase can be as high as 4-5 PSI (best guess) since the air will heat up a lot when the engine is running.
Orb
Last edited by Orb; 07-03-2007 at 09:56 PM..
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