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Some issues from a 2-day HPDE...

Originally Posted by flashburn So if that is the case, wouldn't you want to refill the overflow tank when the engine is hot then? It sounds like if you filled

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Old 05-03-2011, 02:16 PM   #11 (permalink)
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Quote:
Originally Posted by flashburn View Post
So if that is the case, wouldn't you want to refill the overflow tank when the engine is hot then? It sounds like if you filled it to the top when the engine is cool, then it would overflow above max? I checked the actual radiator level, and it was just about at the top there, just the overflow tank is low.
The level in the tank doesn't change very much when the engine comes up to operating temp. So personally I'd rather have it at MAX with a cold engine, than have it at MIN with a hot engine. There is a lot of extra room in the tank above the MAX point, so it won't overflow.

You may have had some air in your radiator that was finally bubbled out with your high-rpm track day. Then when things cooled, the radiator pulled coolant from the surge tank back into the system and the level dropped. Or you're burning/leaking coolant, but you'd have signs (smoke/puddle).
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Last edited by spearfish25; 05-03-2011 at 02:18 PM.
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