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Old 06-29-2022, 10:15 AM   #1
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Aqua hot. Issues

So my hot water wasn’t keeping up when I had the diesel aqua hot work9mg.
I check the level of boiler antifreeze and it seemed low.
So I dumped in a couple gallons and holy **** I got boilerv@ntifreeze coming out my exhaust now.
Is that normal, doesn’t sound like it, did I overfill it?
Or do I have a crack in the aqua hot.
Anyone ever have that happen to them

2006 Monterrey beaver..diesel pusher..
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Old 06-29-2022, 01:31 PM   #2
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Looking for the leak

Well thatís not good, you are going to have to pull the covers off and see if you can locate the issue. If you donít see the problem then loosen the two 10mm nuts that hold the motor in place and swing it off to the side and have a look in the combustion chamber and see what you can see. Iím going to try and add a picture to show you the pump , just incase you donít know what I mean.
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Old 06-29-2022, 01:37 PM   #3
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Happened to me and there were two issues:

1. I had about a 6" long crack in my tank, which I had a friend weld up for me.
2. After I got it all back together, I tested it and it leaked again, which turned out to be a bad radiator cap.

I wouldn't say it's common to have a cracked tank. Mine cracked due to rust inside the tank. It is common for the filler neck joint to come loose. There are two ways to fix it. One is to tear it down and braze it back and the other one is to buy a pre-made fix, which people have had good luck with. And the cap is a $5 cap from autozone (or your favorite auto parts store).

What I would do first is pull the cap and see if there's residue on top of the tank around the filler neck. You'll have to remove the rubber cover that sits there. If there is residue, replace the cap with a new one, run it, and see if it leaks. If not, good. If it does, and there's new residue there, it's likely the filler neck. If no residue in the first place, it's another component. Before suspecting a cracked tank, inspect all of the hose connections from the loops and the pumps. I also had a rubber hose connection on the back from one of the loops that started seeping pretty good. Easily replaced with new heater hose and sealant. See my thread here for the entire saga starting with post 54:

https://www.irv2.com/forums/f115/200...ml#post5970911

Good luck! With a little elbow grease, you can repair it yourself. Just try not to do it in the dead of winter. I was VERY lucky to have indoor storage for the majority of it.
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Old 06-30-2022, 12:01 PM   #4
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I am beginning to think that maybe the fluid came in around the motor into the chamber.
I haven’t takin it apart yet, but will. I watched some YouTube videos,too.
I will keep you informed.
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Old 06-30-2022, 12:03 PM   #5
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I think,I,will just replace that cap when I do this aqua hot maintenance.
I really hope it isn’t anything to serious.
It heats, it circulates, but just has holier antifreeze in the exhaust pipe which is @bout 25 ft long.
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Old 06-30-2022, 12:06 PM   #6
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Quote:
Originally Posted by Wildbuckaroo View Post
Well thatís not good, you are going to have to pull the covers off and see if you can locate the issue. If you donít see the problem then loosen the two 10mm nuts that hold the motor in place and swing it off to the side and have a look in the combustion chamber and see what you can see. Iím going to try and add a picture to show you the pump , just incase you donít know what I mean.
I can dang near bet antifreeze will be 8n that chamber when I pull that motor,
Will see what happens. Will have plenty of rags nearby..hahahaha
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