[Amel Yacht Owners] Re: Onan Water Pump


Sv Garulfo
 

Ok,
So Onan’s spec C (and later) uses the 132-0459 pump (G702 in Sherwood’s taxonomy). It can be found for less than 300$. 

Based on the diagrams, the impeller for the newer pump is much bigger. I wonder if it bears the same risk of losing blades that could make their way to the heat exchanger. 
In other words, wouldn’t instaling a handy strainer like Perigee’s and CreamPuff’s be superfluous with such a pump? (It’s one of our projects)

Fair winds

Thomas & Soraya 
GARULFO 
A54-122
Curaçao 

On Thu, 30 Aug 2018 at 17:49, Bill Rouse brouse@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Yes, Onan 132-0459 Raw Water Pump (Replaces 132-0358) and was the raw water pump on most of the Onans installed in SMs and 54s, including the 11kw Onan. The pump is made by Sherwood Pumps...their model is G702


I hope this helps you.

Best,

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus

Amel School  http://www.amelschool.com
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970

Any opinions and conclusions expressed in this message are solely those of the author and should not be construed as representing the opinion of an expert. Manufacturers' and Expert's precautions must be considered when dealing with mechanical and/or electrical systems to ensure that you are NOT harmed, and/or the device and/or system is NOT ruined. If in doubt, do not touch any mechanical and/or electrical device or system referred to above.


On Thu, Aug 30, 2018 at 3:50 PM 'S/V Garulfo' svgarulfo@... [amelyachtowners] <amelyachtowners@...> wrote:
 
[Attachment(s) from S/V Garulfo included below]

Hi Alex,

if you register on this cummins website
https://quickserve.cummins.com/ with the s/n of your generator, you can get pdf versions of all relevant documents to your model (parts / installation/ operators's manuals).
You can get the S/N, model and Spec (letter) from the plate at the front of your generator. (the plate also has common part numbers, but not the water pump)

Our generator is 11MDKBN / spec D, and the parts manual shows (p.80) 132-0358 Pump, [raw] water  for spec a-b, and 132-0459 for spec C onwards.
We have been told that 132-0459 replaces old ref 132-0358 , and also that they are interchangeable.  Still investigating...

Soraya
Garulfo A54-122
Curacao

On Sat, 7 Jul 2018 at 10:39, Alex Ramseyer alexramseyer@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Mark,
I found the G702 on Amazon and would like to order one as a spare.
However, I need to be sure that pump is the right one for my MDKAW model from 2005. Do all ONAN that we use on our AMELS have the same pump? Where can i  ask/research to be sure in case there are different Sherwood pumps for our ONANS available?
Thans, Alex
SY NO STRESS
AMEL54 #15


 

Clean the inside pump walls well when changing the impeller...use sand paper.and make sure the inside wall is smooth. Also, change the impeller every 200-225 hours...you will not lose a blade unless you use Globe impellers if you follow the above.

It is much easier to remove the pump than to try to change the impeller with the pump attached.

Do not let a single drop of saltwater fall on anything. Use towels and a wet vacuum.

This works, I promise.

Best,

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus

Amel School  http://www.amelschool.com
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970

Any opinions and conclusions expressed in this message are solely those of the author and should not be construed as representing the opinion of an expert. Manufacturers' and Expert's precautions must be considered when dealing with mechanical and/or electrical systems to ensure that you are NOT harmed, and/or the device and/or system is NOT ruined. If in doubt, do not touch any mechanical and/or electrical device or system referred to above.


On Thu, Aug 30, 2018 at 5:59 PM 'S/V Garulfo' svgarulfo@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Ok,
So Onan’s spec C (and later) uses the 132-0459 pump (G702 in Sherwood’s taxonomy). It can be found for less than 300$. 

Based on the diagrams, the impeller for the newer pump is much bigger. I wonder if it bears the same risk of losing blades that could make their way to the heat exchanger. 
In other words, wouldn’t instaling a handy strainer like Perigee’s and CreamPuff’s be superfluous with such a pump? (It’s one of our projects)

Fair winds

Thomas & Soraya 
GARULFO 
A54-122
Curaçao 

On Thu, 30 Aug 2018 at 17:49, Bill Rouse brouse@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Yes, Onan 132-0459 Raw Water Pump (Replaces 132-0358) and was the raw water pump on most of the Onans installed in SMs and 54s, including the 11kw Onan. The pump is made by Sherwood Pumps...their model is G702


I hope this helps you.

Best,

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus

Amel School  http://www.amelschool.com
720 Winnie St
Galveston Island, TX 77550

+1(832) 380-4970

Any opinions and conclusions expressed in this message are solely those of the author and should not be construed as representing the opinion of an expert. Manufacturers' and Expert's precautions must be considered when dealing with mechanical and/or electrical systems to ensure that you are NOT harmed, and/or the device and/or system is NOT ruined. If in doubt, do not touch any mechanical and/or electrical device or system referred to above.


On Thu, Aug 30, 2018 at 3:50 PM 'S/V Garulfo' svgarulfo@... [amelyachtowners] <amelyachtowners@...> wrote:
 
[Attachment(s) from S/V Garulfo included below]

Hi Alex,

if you register on this cummins website
https://quickserve.cummins.com/ with the s/n of your generator, you can get pdf versions of all relevant documents to your model (parts / installation/ operators's manuals).
You can get the S/N, model and Spec (letter) from the plate at the front of your generator. (the plate also has common part numbers, but not the water pump)

Our generator is 11MDKBN / spec D, and the parts manual shows (p.80) 132-0358 Pump, [raw] water  for spec a-b, and 132-0459 for spec C onwards.
We have been told that 132-0459 replaces old ref 132-0358 , and also that they are interchangeable.  Still investigating...

Soraya
Garulfo A54-122
Curacao

On Sat, 7 Jul 2018 at 10:39, Alex Ramseyer alexramseyer@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Mark,
I found the G702 on Amazon and would like to order one as a spare.
However, I need to be sure that pump is the right one for my MDKAW model from 2005. Do all ONAN that we use on our AMELS have the same pump? Where can i  ask/research to be sure in case there are different Sherwood pumps for our ONANS available?
Thans, Alex
SY NO STRESS
AMEL54 #15