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oberdorfer

  1. windblown

    Oberdorfer raw water pump leaking water

    We replaced the impeller on our Oberdorfer raw-water pump two days ago (Universal Mx25, Ericson 32-3). It went reasonably well, though getting the snap ring back on was quite challenge. Since then, we see a steady drip of water (when the engine is running) from the bottom of the pump where it...
  2. Christian Williams

    M25 Raw Water Pump Replacement

    My old Sherwood water pump started leaking this summer. A seal failed, and water and oil dribbled increasingly from the base, in which the shaft turns. At first I rigged a funnel and a tube to route the water into a jug instead of the engine drip pan, which was getting filled up. Then I closed...
  3. Loren Beach

    leaking Oberdorfer

    New problem today. (Sigh) Friday I did the oil and filter change and put in the new impeller and ran it for 20 minutes. All was well. Today I ran it in gear after checking the level in the transmission. (Oddly enough I did have to add about 1/4" of pink ATF. Cannot feel any seepage under the...
  4. B

    Oberdorfer Water Pump

    Can anyone offer suggestions on how to remove the cover plate off the water pump? After haul-out I wanted to check the condition of the impeller and replace it with a new one in the spring but I can't get the cover off. I removed the 4 screws holding the cover on but the cover appears to have...
  5. K

    Oberdorfer Impeller Replacement

    Well, I was able to replace the impeller without taking the shaft out. Seached previous threads and it looks like some say beware of sliding out the shaft and some say it's ok. So, with a bit of cursing, good reading glasses and some more cursing, I was able to get er done. The special little...
  6. M

    Oberdorfer pump - worn seals

    Hi all, My 1988 Universal M25XP has raw water Oberdorfer pump. The Shaft and seals had worn and water started dripping. The pump has one graphite bushing and two rubber/spring seal. Is anyone can tell me how to replace the seals and bushing? Thanks, Mike E32-89 Scotch Plains, NJ
  7. Cory B

    Oberdorfer Seal Replacement

    Hello, I have two Oberdorfer waterpumps that I need to replace the oil & water seals as well as the graphite bearings for. (see "http://www.ericsonyachts.org/infoexchange/showthread.php?t=4931" if you want to know the story) I have the parts, but I can't figure out how to get the old...
  8. WBurgner

    Oberdorfer Impeller

    I recently tried to install a new impeller for the Oberdorfer raw water pump on my Universal M40. While it looked identical to the one removed it did not leave enough room on the shaft to allow replacement of the split ring. When asked, Torresen Marine said they had not heard of that problem...
  9. WBurgner

    Oberdorfer Impeller

    I recently tried to install a new impeller for the Oberdorfer raw water pump on my Universal M40. While it looked identical to the one removed it did not leave enough room on the shaft to allow replacement of the split ring. When asked, Torresen Marine said they had not heard of that problem...
  10. G

    How to install water pump impeller w/o pulling shaft?

    Because I have read that it is possible to damage the seals on my Oberdorfer pump when pulling the impeller shaft (the easiest way to change the impeller and the reason I keep a spare impeller mounted on a spare shaft), I bought an impeller puller which works great when removing the impeller...
  11. Sean Engle

    Oberdorfer Raw Water Pump Wear

    I received an email from O Barquinho's new owner, Erwin - who took OB to Alaska this summer. He had an issue with the raw water pump not priming, and subsequent overheating of the engine. He sent an email outlining his fix, and it's the 'Racing and Cruising' forum. There's also a nice...
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