[C320-list] Replacement sea water pump

[Rod Boer]

Hi Jon,

Thanks for the prompt reply. I just ordered the kit a few minutes ago. I appreciate the prompt reply.  I sail on the Chesapeake Bay which normally is a really good place to sail.  Unfortunately, this sailing season has been a bummer in terms of sailing time. I launched Odyssey the middle of April and because of really bad weather, visits from family, boat issues and a plethora of other things, I only managed to sail for 30 minutes this year on Odyssey. I did manage to race on other boats. I swear if I get this boat fixed no one is going to see me until November. Thanks again.

Rod 

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Jon Vez
Sent: Monday, September 17, 2018 4:52 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Replacement sea water pump

Hi Rod,
After about 8 years, my pump began to leak in the same area and I had quick access to the lip seal kit so I decided to go that route with the intent of getting a new pump and save the old one as a spare. The lip seal kit did the trick and I never bothered with the new pump. This wasn’t an effort to save money, it simply solved the problem. The seal fits in without any need for a mechanical press and took 15 minutes to rebuild.
On my new 3YM I had the same problem (same Johnson pump) and did the same thing.
Not sure if it’s a cause, but I loosen the belts every winter to keep the side load off the shaft...

Sent from my iPad

> On Sep 17, 2018, at 4:24 PM, Rod Boer <rod.boer1 at verizon.net> wrote:
> 
> All,
> 
> The sea water pump on my 3GM30F Yanmar has been leaking for a while. I 
> first determined that the outgoing hose was leaking and I replaced it. 
> That reduced the leak considerably but the sea water pump is also 
> leaking from the middle of the shaft. The part number of the Johnson Pump is 10-24509-01.
> When I entered that for a search on PumpVendor.com, it came back with 
> Yanmar 128397-42500. I am guessing that is a replacement. From the 
> parts list for this number the parts that I think would have an effect 
> on leakage from the middle there is a "lip seal" and an O-Ring 
> Slinger. Has anyone rebuilt the sea water pump or have any recent 
> experiences with replacing the original pump?
> 
> 
> 
> Rod Boer
> 
> Odyssey #688
>