Antifreeze filling up over flow bottle when running. **UPDATE**

[Bondo]

Re: Antifreeze filling up over flow bottle when running. **UPDATE**

You could try pressurizing the cooling system and listen to hear if there is a leak into the raw water side.

Ayuh,.... That's My thought,... Maybe it's gettin raw water into the coolant,...

 

[rick3452]

Re: Antifreeze filling up over flow bottle when running. **UPDATE**

I think we have it…. I spoke to a good guy at "Partman" Marine supply and after explaining that a year and a half ago I had my H.E repaired because there were 5 tubes that were leaking. His theory was that if the 5 already failed, the rest would soon be failing too.
So what appears to be happening , like Bondo and others have suggested is that the H.E is failing, and adding quite a bit of seawater to the coolant. It also made sense due to the fact that the overflow leaking out was not "true green" antifreeze and was just a faint color of green with almost no coolant smell. Thats why after losing all the overflow, the H.E. was still full upon return.
Ordered a new one today.
Thanks again for all your help…. Truly a great community of people.
Rick

 

[Scott Danforth]

Re: Antifreeze filling up over flow bottle when running. **UPDATE**

t

it is over-flowing the bottle for two reasons.

A - too much coolant in the bottle in the first place. remember the 6% volumetric expansion
B - you have a leak in your system and raw water is being introduced to the glycol side of the system

B it is

 

[Speakrdude]

Re: Antifreeze filling up over flow bottle when running. **UPDATE**

Just a hunch but, just before you replaced the impeller, did it overheat?
(Answer C. Head-gasket)

 

[rick3452]

Re: Antifreeze filling up over flow bottle when running. **UPDATE**

Just a hunch but, just before you replaced the impeller, did it overheat?
(Answer C. Head-gasket)

No, not even slightly, Thanks for the thought.

 

[Highmarket]

I know it was a old post but did this solve your overflow problem

 

[southkogs]

Let's not reignite old topics please. :closed_2: