[C320-list] Simple Hose Replace? - Between sea water pump and heat exchanger (resend w/o images)

[Doug Treff]

I went ahead and bought a new pump and hose between it and the heat exchanger. Went with the YEU pump because it was considerably less expensive. Planning to install this weekend.

Of course this means I'll need to get new spares because the impeller is different and it uses an O-ring instead of a paper gasket.

--
Doug Treff
doug at treff.us



On Wed, Jun 26, 2019, at 12:42 AM, Joel Krauska wrote:
> Well, I replaced the hose, and it looks like it was never the hose, but rather the pump. I can now give the new hose a little squeeze and I hear and see water coming from the pump.
> (looks like at the shaft -- same issue as Doug reported just now -- maybe it's something in the water! -- and thanks also Ted.)
> 
> I see a thread from last summer about taking it to a shop to have the seals rebuilt.
> 
> Need to check prizes on replacements.
> 
> Doug: What are you going to do?
> 
> Best,
> 
> Joel Krauska
> Grace #802
> 2001 Catalina 320
> 
> 
> 
> 
> 
> On Mon, Jun 17, 2019 at 2:59 PM <sail-ability at sympatico.ca> wrote:
>> Me too. 
>> 
>>  Sent from my iPhone
>> 
>>  > On Jun 17, 2019, at 4:03 PM, Joel Krauska <joel at krauska.net> wrote:
>>  > 
>>  > Thanks John.
>>  > 
>>  > I found this:
>>  > 
>>  > https://j109.org/docs/Yanmar-3GM30-parts-catalog.pdf
>>  > Page 48, Fig.39. COOLING FRESH WATER LINE
>>  > Part Number: 128690-49010
>>  > 
>>  > Looks correct to me.
>>  > 
>>  > 
>>  > 
>>  > 
>>  > 
>>  > 
>>  >> On Mon, Jun 17, 2019 at 12:50 PM <sail-ability at sympatico.ca> wrote:
>>  >> 
>>  >> I replaced mine and used the OEM hose. You won’t get a straight run hose
>>  >> to work properly. Sadly I don’t have part # to hand but U can find it
>>  >> online.
>>  >> Cheers
>>  >> JohnM
>>  >> 1999#574
>>  >> 
>>  >> Sent from my iPhone
>>  >> 
>>  >>> On Jun 17, 2019, at 3:19 PM, Joel Krauska <joel at krauska.net> wrote:
>>  >>> 
>>  >>> Howdy.
>>  >>> 
>>  >>> I have a Yanmar 3GM30F.
>>  >>> 
>>  >>> I found a slow drip coming off the hose leading out of the sea water
>>  >> pump.
>>  >>> 
>>  >>> Images here:
>>  >>> https://cajoel.smugmug.com/Grace/Yanmar/Dripping-Sea-Water/n-cCL2pm/
>>  >>> 
>>  >>> It looks to be coming from near the clamp on to the hose. I could try to
>>  >>> tighten up the clamp, but I think it's probably best to replace also
>>  >>> replace the hose.
>>  >>> 
>>  >>> I'm guessing that since this particular hose is still flaking silver
>>  >> paint
>>  >>> that it probably was factory.
>>  >>> 
>>  >>> I've replaced other hose runs with Shields 250 5/8" hose.
>>  >>> 
>>  >>> I'd like to do the same here but I was curious about the big bend right
>>  >>> before it enters the heat exchanger. Will shields 250 set and hold a
>>  >> bend
>>  >>> like that?
>>  >>> 
>>  >>> Any other advice on doing this well?
>>  >>> 
>>  >>> Best,
>>  >>> 
>>  >>> Joel
>>  >>> Catalina 320 - Grace #802
>>  >>> South Beach, SF, CA.
>>  >>