Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Radiator Expansion Tank - VENT TUBE
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Old 09-18-2008, 08:50 AM
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Originally Posted by Jmark
Without knowing exactally how the tank is made, i'd have to assume that the "vent" pipe on the bottom extends inside up close to the top. If it was at the bottom, it would push coolant out all the time.
Yep, that's how it is set up (I have the same puke tank). You don't really need a hose on the vent tube unless you want to route the potential puke away from the area below your tank. The vent tube not only allows air out of the tank as it fills up, but is also the "overflow" if the tank fills to the top.
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