Radiator Surgetank Fill

Radiator Surgetank Fill
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Posted by: NC ^®

12/09/2005, 09:21:27

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I'm having problem doing an initial "non-evacuated" fill at 3 gpm. Upon overflow it only took 55% of total system volume which meant air was not properly vented out by the water. Needless to say when we started the engine no (water) pump pressure could be recorded until we added another 35% of water into surgetank by which time cavitation already took place. I've ensured all the lines (vent & shunt) are declining "smoothly", tried different hose sized, and even disconnected the vent hoses but still could not get the trapped air out. I can't raise the surgetank any higher nor increase/decrease the lines further. What are my alternative to get a minimum of 35% (volume) trapped air out to get a 90% initial "natural" fill? Is there such a solution without modifying the tank?

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Re: Radiator Surgetank Fill

Re: Radiator Surgetank Fill -- NC Post Reply Top of thread Forum

Posted by: randykimball ^®
Barney
12/09/2005, 19:12:47

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Are you able to put a "T" in the lower hose with a valve between it and the radiator? Place a second valve on the new leg of the "T". If so you could close the valve to the radiator and force feed the system through the new leg and valve until water comes out the top. This most likely is the opposite that the surgetank is doing. My thought is this will push air out the top and not trap it with downward or mixed direction traveling coolant. I say this because most systems I know of use this direction of flow by design, so I would expect it to evacuate the air by design if you do this. (and.... don't forget to open the valve to the radiator when you get the air evaculated, and close the one to the new input hose ...) .

The worst suggestion of your lifetime may be the catalyst to the grandest idea of the century, never let suggestions go unsaid nor fail to listen to them.

Modified by randykimball at Fri, Dec 09, 2005, 19:14:30

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Re: Radiator Surgetank Fill
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