I have a Universal 5411 Atomic diesel in my 1983 Catalina 27. There is an Orberdorfer fresh water pump on the engine. On the bottom of the pump is a small hole that drips. Not very fast but all the time the engine runs. I changed the gasket. Any ideas about why it leaks and/or how to fix it will be appreciated
I'm not familiar with that exact pump, but it sounds like you are describing a drip hole that is put between the pump's seal and a bearing. The hole allows water that leaks past the seal to drip out before it damages the bearing. You need to replace the seal.
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