[C38] Water pump

[Anders Finn]

Everyone,

Looks like my pops was able to grab one from someone and have it shipped to
Duluth. The leak is minor at one of the seams and they're only losing an
ounce or two per hour of engine running so it's not bad. Thanks for all of
your help.

Anders


On 6/16/08, Max Soto <maxsoto at gmail.com> wrote:
>
> This might help
> I got this from very old forums, but there are some part numbers.
> *Oberdorfer Rotary Seals must seal *07/30/02 10:53AM
> http://forums.torresen.com/eThreads/view/engines/view_post?id=3916
>
> The first time I changed the impeller on my Oberdorfer I ended up pulling
> the whole shaft out and after replacing the impeller on the shaft and
> inserting the shaft back into the pump it started to leak water. (This water
> will rust the front of your engine as well as the oil pan) Very bad news.
> The next time I replaced the rotary seals as well as the impeller and this
> did stop the water leak. The shaft seems to be shaped like a Coke bottle
> that necks down to a considerably smaller diameter at both the water seal
> and the oil seal center point. This necking looks like an intentional design
> feature. Anyway, my engine needed a higher capacity pump and it is now using
> a Sherwood water pump no. 302648 - 42175 that has twice the water flow
> capacity. The pump came as a kit #302837 for retrofiting Universal models
> 5411, 5416, 5424, 5432, and 5444
>
>
>
> *Sherwood has twice the flow of Oberdorfer*
>
> Markus Ritter (MarkusRitter at hotmail.com)
>
> 08/02/02 09:32AM
>
> I replaced my Oberdorfer last week with a Sherwood, so far it is great. I
> love getting more water through and I no longer get steam.  see
> http://sankaty.homestead.com/Universal_5432_rawwater_pump_cap.html    A
> KIT IS AVAILABLE TO MOUNT THE CURRENT PUMP ON the universal 5411, 5415,
> 5424,5432, & 5444 IN PLACE OF THE OBERDORFER. KIT PART #302837. THE KIT
> CONTAINS THE NEW PUMP AND MOUNTING HARDWARE   some folks have also changed
> to the 3 inch heat exchanger in place of the original 2 inch unit.
> see http://sankaty.homestead.com/Overheating_Heat_Exchanger_size_.html
>
>
>
> *Pumps/oberdorfer/sherwood re:kubota/universal prices and compare*
>
> Rick (pelago at phoenixcon.net)
>
> 08/05/02 11:09AM
>
> DEPCO PUMP COMPANY 1 800 445 1656   I have read with interest the posts
> re: gpm and cost and compare Oberdorfer with Sherwood.. the Universal/Kubota
> uses two types of pumps 2 bolt and four bolt, but in reality they are the
> same pump they are 202 pumps and the flow rate is 9.59 gal per minute at
> 2500 rpm... cost is $140.00 from Depco, I use them for all pump needs,
> rebuild kit is $32.31 and comes with all needed for complete rebuild. If you
> want to replace the shaft it is $21.57. Sherwood no longer makes the M-5 or
> the H-80 that would be the Sherwood model to replace the 202 style, However
> a Westebeke kit deal from Sherwood thru Westerbeke or Westerbeke distributor
> is G903 for 234.20..HOWEVER THE FLOW RATE IS DAMN NEAR THE SAME AS THE
> OBERDORFER...  no brainer 140.00 versus 234.20....  Just ordered a new
> oberdorfer as a backup for existing pump, also ordered a rebuild kit for ON
> HAND!!!!   happy sailing and Pelago is getting ready for cruise #8
> --
> Max Soto
> C38 #198 ESTANCIA
> Puntarenas, Costa Rica
>
>
>
>
>
>
>
>
> 2008/6/16, RICHARD KILROY <dickkilroy at verizon.net>:
>>
>> There are two water pumps on the 5424 one is the saltwater cooling pump
>> and
>> the other the fresh water circulation pump. I have replaced both on my cat
>> 38 I think it is the saltwater pump that Charles has leaking, it has a
>> long
>> name I have forgotten( sounds Italian I think) If that is the pump it
>> should
>> be replaced with a Sherwood which is adapted to fit  by the dealer. it
>> pumps
>> more gallons per minute and cools the engine better. If the Great Lakes
>> guy
>> doesn't have what you want you can also try Hansen Marine in Marblehead Ma
>> 781=631-3282. There is a freeze plug on the bottom of the face of the
>> engine
>> where this pumps drip will run , if it goes on long enough, the freeze
>> plug
>> will corode and fail and you will loose the engine oil, again it happened
>> to
>> me in saltwater. Hope all ends well
>>
>> Dick
>>
>>
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>
>
>
>
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