My later model Sherwood raw water pump on my Universal 5411 started leaking after I replaced the impeller. It wasn't leaking at all before the replacement and it's not overheating and still pumps water but the leak bothers me even on fresh water. I've removed the pump cover several times to make sure that the o ring and paper gasket look ok but it still leaks. I know from reading old posts everyone hates the Sherwood pumps and likes the Oberdorfers but I'd like to fix this one if possible. I'm not sure how I screwed this up if anyone has any ideas.
Here's a video https://www.youtube.com/watch?v=cke6ydQv2dQ
Here's a video https://www.youtube.com/watch?v=cke6ydQv2dQ