How do i properly pressure check a new heater core for leaks?
I bought a new heater core. So how do i properly pressure check a new heater core for leaks before installing it? i want to make sure it doesn't leak before waisting all that time installing it. any ideas? or proper way to test it for defects?
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If I were doing it I would take a piece of heater hose and connect it to the 2 pipes on the heater core. I would put a T in the hose with some fittings so I could use my air hose to pressurize it. Set the pressure regulator to about 15 psi and put the heater core under water to see if it leaks.
Kind of a pain but much less painfulk than installing it, having a leak and getting to do it all over again. Smart move on your part. |
Originally Posted by terry s
(Post 267762)
If I were doing it I would take a piece of heater hose and connect it to the 2 pipes on the heater core. I would put a T in the hose with some fittings so I could use my air hose to pressurize it. Set the pressure regulator to about 15 psi and put the heater core under water to see if it leaks.
Kind of a pain but much less painfulk than installing it, having a leak and getting to do it all over again. Smart move on your part. |
Originally Posted by bigdaddykane93
(Post 268095)
that sound like a good idea. where can i get a T fitting that would fit the hoses? i do have an air compresser but im not sure how to connect it to the rubber hoses to pressurize the heater core. have you done this before?
Go to the hardware store or auto store and you can buy a metal tire valve that has 1/8" pipe thread on the other end. The air chuck you fill your tires with will fit on one end and the other end will be 1/8" male pipe thread. The rest of the parts can come from the hardware store. Metal is available but plastic should be cheaper. You need a tee and 2-5/8" hose barb fittings for the hose, and reducing fittings for the other branch of the tee that will take you down to 1/8" female pipe thread so you can screw the tire valve into it. Also a couple of hose clamps. Just be sure you don't over pressurize it and cause a leak in the heater core. The system is designed to run about 15 psi. A new heater core should hold more than that but I do not knowhow much. My guess is you could safely fo to 18-20 psi but I would not go over that and there is no reason to go higher. |
I just thought of a simpler and cheaper way if you have access to a 1/8" pipe tap. Get a piece of thick wall plastic pipe at the hardware store that will slip into the heater hose. Drill & tap the pipe to 1/8" pipe thread. Then use the fitting I described above. :icon_wink:
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