Hi everyone. I've had an old 3/4hp single speed pump on its last legs that finally gave up the ghost this weekend. Had been running hot, finally siezed up. I already had a direct replacement motor on hand, so I did the swap out this weekend. Ran to the local pool store for help with seals/gaskets. In the end I replaced the motor, the shaft seal, the diffuser, and diffuser gasket. Reinstalled, and it runs, but once the pump primes and I have pressure, water is trickling out at the bottom between the motor frame and the seal plate.
I took it apart again this afternoon, looked everything over, put it back together. Still trickling.
My pump (unknown make) has the band-style clamp between the seal plate and the wet end of the pump. That gasket seems fine, not leaking there. I can't see where the diffuser gasket could cause a leak like what I'm seeing. That suggests maybe the new shaft seal itself is bad? Or is there anything between the seal plate and the motor? I don't remember a in gasket there offhand, but I'm not sure there should be any water there to seal.
I'll probably be pulling it apart again tomorrow. Just wonder what else I should be looking for. What are the odds I got a bad shaft seal? Or put it in incorrectly? Or should I suspect the seal plate itself?
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Ok, title is a bit misleading. Replacement pump MOTOR, now it's leaking...