raw water pump

  1. K

    Beneteau 343 Raw Water Pump adjustment and a 1964 Thunderbird

    Hi all, thought I would share a quick experience and possible tip for others. On Friday, while out for a quick sail, after dousing the sails, i noticed the water from the exhaust was weak in flow. Having only owned the boat for two weeks, I am not sure exactly what is the correct flow is, but...
  2. KZW

    Heat Exchanger to Raw Water Pump Hose - An Adventure in Maintenance.

    Long story. Get something to drink and sit back. In August my Oberdorfer raw water pump started leaking water out of the weep holes. Universal M-25 XPB with 490 hours. The Obferdorfer was one of the first things I installed when I bought the boat in 2014 (sail no 307, built in 2005). I'm the...
  3. fourwhitesocks

    Sherwood pump number for Oday 28 with M12 engine

    Trying to figure out which Sherwood raw water engine pump I have on my 1986 28' Oday. Has the Universal M12 diesel. Will it be a Universal or Sherwood number? Might have to replace or purchase a rebuild kit. Anyone know if the rebuild kit will contain a bearing that will need it being...
  4. sailor5017

    raw water pump for yanmar 4jh engine

    I am trying to find parts for said Johnson raw water pump on yanmar engine on 41DS hunter. Found complete pump for $2000.00 . unbelievable rip off price. also found selection of replacement parts cannot buy bearing separate from shaft. $500.00 for shaft and bearing. various other parts...
  5. dkerphunter

    Raw Water Flow Reduced After Impeller Change

    Hello, I just changed the impeller and gasket in the raw water pump on our Yanmar 3GM30F. Before the service the raw water flow was great in terms of volume and frequency. After the service, it decreased to a trickle with lower frequency. There's a clear clear "before and after", leading to...
  6. S

    Yanmar 4JH3 Raw Water Pump Impeller

    Has anyone else used the relocation kit by [SeaSpaceMarine.com] to relocate their raw-water pump? My daughter's boat requires lifting the engine and removing the pump completely just to check the impeller. So instead of repeating this process every year, I am thinking of relocating the pump now...
  7. S

    Yanmar 4JH3 Raw Water Pump Impeller

    Has anyone else used the relocation kit by [SeaSpaceMarine.com] to relocate their raw-water pump? My daughter's boat requires lifting the engine and removing the pump completely just to check the impeller. So instead of repeating this process every year, I am thinking of relocating the pump now...