[C38] C38 Losing circulating water

Mon Jun 16 14:42:20 EDT 2008

The Mighty Quinn (Charles Finn) does the same thing as Max.

Anders Finn

On 6/16/08, Max Soto <maxsoto at gmail.com> wrote:
>
> Are you using a coolant reservoir??
> I had the same problem until I put plastic bottle as reservoir at the end
> of the cap's hose!!
>
> Max
>
>
> 2008/6/16, Bob Porter <hiawatha at localnet.com>:
>>
>>  Hi Folks;
>>
>> I have a persistent circulating water leak in my engine. I lose about 500
>> ml of antifreeze in about 50 miles of motoring. I have changed out the heat
>> exchanger, the hoses, the radiator cap. Any thoughts on where the leak might
>> be?
>>
>> Bob Porter
>> Hiawatha
>>
>> ----- Original Message -----
>> *From:* Max Soto <maxsoto at gmail.com>
>> *To:* Catalina 38 Listserve <listserve at catalina38.org>
>> *Sent:* Monday, June 16, 2008 11:28 AM
>> *Subject:* Re: [C38] Water pump
>>
>>
>> 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
>>>
>>>
>>> _______________________________________________
>>> Listserve mailing list
>>> Listserve at catalina38.org
>>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>>>
>>
>>
>>
>>  ------------------------------
>>
>> _______________________________________________
>> Listserve mailing list
>> Listserve at catalina38.org
>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>>
>>
>> _______________________________________________
>> Listserve mailing list
>> Listserve at catalina38.org
>> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>>
>>
>
>
> --
> Max Soto
> C38 #198 ESTANCIA
> Puntarenas, Costa Rica
>
> _______________________________________________
> Listserve mailing list
> Listserve at catalina38.org
> http://catalina38.org/mailman/listinfo/listserve_catalina38.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://catalina38.org/pipermail/listserve_catalina38.org/attachments/20080616/754a42a1/attachment-0001.htm>