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Heater Plumbing Easy Question :)


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After rebuilding my Arvin heater, it occasionally leaks a half ounce of fluid - I expect it is a leak in the core. What is the best way to stop the coolant flow through the heater? I was thinking to simply shut off one or both petcocks?

26A5FyO.jpg

 

Showing the two petcock locations.

 

 

 

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You could get a male/male hosebarb adaptor and run the lines into

each other- one’s 1/2 and one’s 5/8 right? So just running a short loop os a no-go. That’s what I would do, then fix the heater at your leisure. If you live where its always warm then just take out the hosebarbs and plug em.

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Thanks guys. I was worried that there might be a hidden process going on that I didn't know about, kinda like no thermostat makes your engine run hotter, not cooler. Sounds like I can shut 'em off and be ok until I get that core sorted.

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