soapy
Senior Member
I just repaired one of my Ray Pak boilers and thought I would make a post showing simple repairs for others. I had a small leak coming from under the boiler and was not sure what it was. I removed the hood so that I could get down to the heat exchanger, and manifolds on each end of the exchanger. WHen looking down on the exchanger I could see some water puddled up on the return manifold on the far side of the exchanger. This could have been from a bad exchanger, cracked manifold or bad seals. I loosened up the 6 bolts that hold the manifold on and pulled it off. The manifold looked good with no cracks and I could not see any leaking on the heat exchanger. When I looked at the seals between the manifold and the heat exchanger I could see one of the red rubber seals had cracked causing the leak. I ordered a seal kit from Huron valley sales for $19 and installed 9 seals over the heat exchanger pipes using some high temperature silicone on the exchanger side of the seal. Then I snugged up the manifold back onto the exchanger. Do not go to tight here just snug them up good. Picture 1 shows the inlet/outlet side of the first manifold, the heat exchanger and the removed manifold. Picture 2 show the seals installed ready for the manifold. It would be s simple basic repair to fix almost anything on the ray pak boiler wet side of things. View attachment 594View attachment 595
Interesting the design changes from mine with the insulation exposed on the top. I would ask how old yours was but I don't know how old mine was. LOL 