Re: [C320-list] C320-list Digest, Vol 3232, Issue 1 raw water pump

[Tom Talling]

Yes very frustrated. It would not draw over 1 gallon of antifreeze at the end of last year and I replaced the impeller and it still wouldn’t draw. When it went back in the water in the spring it would draw but it was leaking so I replaced the impeller again as well as cleaning up the surfaces. It stilled leaked. I am thinking it is the impeller shaft seal and am trying to replace it but having difficulty finding the right one. Just thinking buying a whole new pump would be a lot easier.

Regards,

Tom Talling
215-262-1427
Blue Mountain Medical
www.BlueMountainMedical.com

Please excuse my brevity.

Sent from my iPhone

> On Jul 31, 2018, at 4:00 PM, c320-lis...@lists.catalina320.com wrote:
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> Today's Topics:
>
> 1. Raw water pump (Tom Talling)
> 2. Raw Water pump (Tom Talling)
> 3. Re: Raw water pump (Dick Walker)
> 4. Re: Raw water pump (Dick Walker)
> 5. Re: Raw water pump (Graeme Clark)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 31 Jul 2018 09:14:18 -0400
> From: Tom Talling <ttal...@gmail.com>
> To: c320...@lists.catalina320.com
> Subject: [C320-list] Raw water pump
> Message-ID: <03248F2C-0448-40F1...@gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
>
> Can anyone recommend an affordable aftermarket raw water pump that holds up?
> Regards,
>
> Tom Talling
> One Shot
> Bohemia River
> TTal...@comcast.net
> 215-262-1427
>
> Please excuse my brevity.
>
> Sent from my iPhone
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 31 Jul 2018 09:15:17 -0400
> From: Tom Talling <ttal...@gmail.com>
> To: c320...@lists.catalina320.com
> Subject: [C320-list] Raw Water pump
> Message-ID: <3FDF262E-DB7A-4AD2...@gmail.com>
> Content-Type: text/plain; charset=us-ascii
>
> I forgot to say it was for a Yanmar Diesel.
>
> Regards,
>
> Tom Talling
> 215-262-1427
>
> Please excuse my brevity.
>
> Sent from my iPhone
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 31 Jul 2018 09:01:04 -0700
> From: Dick Walker <dickw...@att.net>
> To: C320...@Catalina320.com
> Cc: c320...@lists.catalina320.com
> Subject: Re: [C320-list] Raw water pump
> Message-ID: <4BC661C8-E640-476B...@att.net>
> Content-Type: text/plain; charset=us-ascii
>
> I would not mess around and get the stock pump.
>
> Cheers
>
>
>
> Dick Walker
> 740 Olive Ave.
> Coronado ,CA 92118
> 619.435.8986
>
>
>
>> On Jul 31, 2018, at 06:14, Tom Talling <ttal...@gmail.com> wrote:
>>
>>
>> Can anyone recommend an affordable aftermarket raw water pump that holds up?
>> Regards,
>>
>> Tom Talling
>> One Shot
>> Bohemia River
>> TTal...@comcast.net
>> 215-262-1427
>>
>> Please excuse my brevity.
>>
>> Sent from my iPhone
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 31 Jul 2018 09:01:04 -0700
> From: Dick Walker <dickw...@att.net>
> To: C320...@Catalina320.com
> Cc: c320...@lists.catalina320.com
> Subject: Re: [C320-list] Raw water pump
> Message-ID: <4BC661C8-E640-476B...@att.net>
> Content-Type: text/plain; charset=us-ascii
>
> I would not mess around and get the stock pump.
>
> Cheers
>
>
>
> Dick Walker
> 740 Olive Ave.
> Coronado ,CA 92118
> 619.435.8986
>
>
>
>> On Jul 31, 2018, at 06:14, Tom Talling <ttal...@gmail.com> wrote:
>>
>>
>> Can anyone recommend an affordable aftermarket raw water pump that holds up?
>> Regards,
>>
>> Tom Talling
>> One Shot
>> Bohemia River
>> TTal...@comcast.net
>> 215-262-1427
>>
>> Please excuse my brevity.
>>
>> Sent from my iPhone
>
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 31 Jul 2018 17:50:43 +0100
> From: Graeme Clark <c...@skyflyer.co.uk>
> To: Catalina list <C320...@Catalina320.com>
> Subject: Re: [C320-list] Raw water pump
> Message-ID: <E899DDD3-7B8C-43BC...@skyflyer.co.uk>
> Content-Type: text/plain; charset=utf-8
>
> Tom
>
> I?m curious; I have a 22 year old Yanmar 3GM30 with the stock pump (actually made by Jabsco, I believe) and it has held up for over 2000 hrs? You sound as though you?ve had a frustrating time with yours? If so i think you?ve been unlucky.
> For what its worth - possibly irrelevant - I always replace the impeller every year, as well as the cover gasket. They are both low cost items and it seems worth it for peace of mind.
>
> Graeme
> 1996, #366
>
>> On 31 Jul 2018, at 14:14, Tom Talling <ttal...@gmail.com> wrote:
>>
>>
>> Can anyone recommend an affordable aftermarket raw water pump that holds up?
>> Regards,
>>
>> Tom Talling
>> One Shot
>> Bohemia River
>> TTal...@comcast.net
>> 215-262-1427
>>
>> Please excuse my brevity.
>>
>> Sent from my iPhone
>
>
>
> End of C320-list Digest, Vol 3232, Issue 1
> ******************************************

[Greg Flanagan]

Tom,

It’s not your impeller. Take out the water pump, it’s fairly easy to do and take it to a marine machine shop to have it rebuilt. Save the impeller and put it back in. I did this two yearS ago and it only cost ~ $100. When you bring it to the shop. When they leak they are telling you they need a rebuild or replacement. A new one cost $500. Mine has worked great again for two seasons so far.


Greg
Hoop Dancer #1076
Sidney, BC

[Joe Luciano]

I’ve replaced the seal on my raw pump in the past. The easiest way I’ve found to do it, is to remove the pump and take it to a shop because the seal has to be pressed out and a new one pressed in. It’s a pretty simple job in a shop with the right tools. I found it to be much cheaper than replacing the pump, especially if the inner surfaces are in good shape. A leaking pump at the shaft seal however is a different animal than the pump not drawing water and pumping. My guess is that if you have a new impeller and good cover sealing surfaces, your problem may likely be air trapped in the pump. This happens commonly on my pump when I clean the suction strainer. Try loosening the clamp on the suction hose to the pump and see if there is water right there or a bunch of trapped air. You have to bleed all of the air out in order for the pump to pull suction. Because of this, I installed a hose connection just upstream of my strainer where I can put a short length of clear hose to get some head height, fill the hose with water and let it prime itself from a bucket of water. If you do this, you have to close your thru hull valve or the water will just pour through it however. Once it pumps clear water from the bucket, I shut the engine down, disconnect the hose and line up the thru hull valve again. I also use the same set up to flush my raw water system with fresh water or pink antifreeze for winterizing. Hope this helps…

Regards,

Joe Luciano
Second Wind
2005 Catalina 320

[Dave Hupe]

See if anything matches your need here for a new raw water pump for your Yanmar engine https://www.parts4engines.com/yanmar-gm-series/
I ordered a water pump from them for my Perkins Perama M30 engine sealed coolant system (they are in the United Kingdom). The price was exceptional compared to what I could find in the US, the pump was original manufacturer, and I received it for $15 shipping in 3 days...… perfect!
Or, contact Depco Pump Company about a pump rebuild http://depcopump.com/  I had them rebuild my raw water Jabsco pump and they did a great job. It was pricey since they needed to replace the pump shaft which is the most expensive part due to shaft scoring (the cause for the shaft seal leak). However, it was about half as costly as a new pump. 
Dave Hupe
1994 Cat 320 "Mayan Sun" (#32)
Holland, MI