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Coolant overflow..


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I had the same issue when I first got my shee, It was the head gasket.


Last time I had a gasket issue it was leaking from the head...this time it's not. That's why I ruled that out. Orings in my case. Do you know the science in how/why would a busted gasket cause coolant overflow ? From the radiator..

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the science behind it is that compression from the cylinder causes excess pressure in the cooling system. but that would cause you to loose coolant, not necessarily have a leak.  

 

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the science behind it is that compression from the cylinder causes excess pressure in the cooling system. but that would cause you to loose coolant, not necessarily have a leak.  
 


Two things...are u saying a busted gasket or oring would cause the excess pressure?

From what u just said, maybe I didn't make my self clear. Looks like you think I have a steady leak, I don't. I do loose coolant when I'm riding. So back to my original post, would the loose clamp to the water pump cause excess pressure which would cause me to loose coolant while riding??

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ok,  trying the clearify,  you dont have a leak that is a drip or consistently coming from somewhere, you are just loosing coolant? 
 


YES YES...EXACTLY..LOL...glad we got that clarified...I was wondering why some of the stuff u were saying earlier made me scratch my head. I apologize if I didn't make it clear from the beginning..

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1 hour ago, justin_smallwood said:

Which made me think in the very first post. If a bad gasket would cause excess compression in the coolant system, then why wouldn't a loose clamp do the same thing? Since they serve the same purpose as keeping things air tight..

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They don't serve the same purpose, the hose clamp you are referring to is to keep coolant from leaking out of the cooling system, the head o rings are to keep coolant in the cooling system AND combustion pressure out. If/when an o ring fails it lets combustion pressure into the cooling system and the excess pressure has to go somewhere, which is the overflow. Also a failed o ring can let coolant into the cylinders which never turns out good. I have a set of pistons in my shop that can verify this.  

A loose clamp is not going to pressurize your cooling system, actually it will do the opposite in that you loose pressure. I will back up what others have said, if your getting coolant out of the overflow you either have a bad head gasket/o ring, bad radiator cap, or your overheating. 

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They don't serve the same purpose, the hose clamp you are referring to is to keep coolant from leaking out of the cooling system, the head o rings are to keep coolant in the cooling system AND combustion pressure out. If/when an o ring fails it lets combustion pressure into the cooling system and the excess pressure has to go somewhere, which is the overflow. Also a failed o ring can let coolant into the cylinders which never turns out good. I have a set of pistons in my shop that can verify this.  
A loose clamp is not going to pressurize your cooling system, actually it will do the opposite in that you loose pressure. I will back up what others have said, if your getting coolant out of the overflow you either have a bad head gasket/o ring, bad radiator cap, or your overheating. 


Thank you for the thorough explanation...Looks like it's leaning towards a bad oring...

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