Yanmar 3GMD Raw Water Pump Dripping

tomgrigsby

tomgrigsby

.
May 21, 2009
362
Hunter 30 Smithfield, VA
Noticed today after shutdown of the engine that the raw water pump is dripping. I haven't had to do anything to it in the 10 years that I've owned the boat. Just wondering what your experience is with rebuild kits and recommendations. New pump is VERY pricey, but so are the rebuild kits. All comments welcome.
 
Ken Cross

Ken Cross

.
Oct 24, 2010
2,405
Hunter 30 Everett, WA
I have totally rebuilt one (bearing, seal, impeller, and gasket) was pretty easy, but I did it at home where I have more tools.
They are really pretty simple.

You might consider remove it and tear it down before spending the money on a rebuild kit. That way you will see if the housing and shaft are okay before you commit money. At the same time, you will see the difficulty or lack of.

Ken
 
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seadaddler

seadaddler

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Dec 19, 2006
5,832
Hunter 36 Punta Gorda
Do a search here and plenty of sailors have done the rebuild and plenty of info and photo's showing all the parts and how to rebuild.
nick
 
O

odaydokay

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Jul 5, 2011
764
Oday 28 Madison, CT
tomgrigsby said:
Noticed today after shutdown of the engine that the raw water pump is dripping. I haven't had to do anything to it in the 10 years that I've owned the boat. Just wondering what your experience is with rebuild kits and recommendations. New pump is VERY pricey, but so are the rebuild kits. All comments welcome.
Click to expand
www.depcopump.com. These guys were great and not expensive. Rebuilt my Sherwood. Fast turnaround also.
 
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