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Jabsco housing leak
Hello, all. I recently did a refurb on my Jabsco head (joker valve, seals, etc.) and, on reassembly, can't get the valve cover (on top of the pump cylinder) to stop leaking when pumping water. It didn't do this before (although the leaky seal did allow water up the pump shaft past the seal housing assembly -- which is why I replaced the seal. That seals fine now.)
I have disassembled and checked everything, and torqued the six screws as much as I dare. Still leaks. What's up? Do I need to put some good old fashioned engine head gasket sealer in there or what? The head is functional, but it sure is annoying to have water spurt out from under the valve cover when using the head! Thanks for any advice.