I've tracked down my leak on my water pump to the pump housing. It's leaking between the plate that attaches to the motor and the rest of pump housing. I did notice when taking it apart that the threaded hole on that bottom side (where the leak is) felt stripped. I tried to use some teflon tape, but that doesn't seem to help at all.
Is all hope lost, or could some silicone get me some more life on this pump?