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Old 06-06-2016, 22:34   #1
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Orberdorfer pump

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
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Old 06-06-2016, 22:39   #2
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Re: Orberdorfer pump

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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Old 07-06-2016, 12:58   #3
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Re: Orberdorfer pump

Do you know how to replace the seal?
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Old 07-06-2016, 13:09   #4
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Re: Orberdorfer pump

Oberdorfer Pump Rebuild 101 - Mysteries of the Oberdorfer - Seal Replacement - REBUILDING A PUMP w/Flix
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Old 07-06-2016, 19:53   #5
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Re: Orberdorfer pump

My pump is an N202M. I believe you are right about a seal problem. I just have to get instructions.

Thanks

Frank
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