[C320-list] Water pump weep hole

[Mike Mellon]

I just installed the JMP pump too, we'll have to see how it goes 
though.  Big Blue very helpful at time of purchase (2 months ago).  More 
like $450 as I recall.  Shipped from Florida, Big Blue in Vancouver BC.  
They do say that one should use the JMP impeller for replacement when 
necessary.

You may have to change fittings on pump to match hose diameters.  That 
can be a challenge if they have been on the old pump for a long time.

Mike Mellon

LaVida 1996 #324


On 9/21/2020 6:00 PM, Dan wrote:
> Thanks Larry I Will check out the JMP. Any hints on installing?
> Dan
> 1995 #250
> Sent from my iPhone
>
>> On Sep 21, 2020, at 5:41 PM, Larry Frank <WindSwept at stx.rr.com>Will check out the JMP.  wrote:
>>
>> Hi Dan,
>>
>> I installed the JMP raw water pump on my Westerbeke 30B yesterday.  Fits perfectly and functions as expected.
>>
>> Larry
>> WindSwept
>> 1995 320 #246
>>
>>
>> On 9/18/20, 5:39 PM, "Larry Frank" <WindSwept at stx.rr.com> wrote:
>>
>>     Dan,
>>
>>     I am going through this right now.  A Westerbeke sourced pump or even rebuild kit including a shaft which should be replaced will be very expensive.  Best I found was a pump from JMP Pump (www.jmpusamarine.com).  Their model WB081P is an aftermarket version for the Westerbeke 30B and replaces Westerbeke part 48080.   I have this new pump on my workbench and planned on installing it on WindSwept this weekend however tropical Storm Beta is headed to the Gulf Coast of Texas where I live.  I don't think I want to get into an engine repair project and not be able to move the boat in an emergency situation if I run into a problem.  However it looks like exactly the same pump.  You can purchase the pump direct from JMP or there is a distributor Big Blue Ocean Marine in Florida.  Ryan at Big Blue is extremely helpful and he told me he would beat any price.  I found out about Big Blue because I called JMP and they referred me to Ryan as the expert.  My local mechanic found this pump for me so I purchased through him.  I paid him $404 for the pump and gasket, plus shipping and sales tax
>>
>>     Larry
>>     WindSwept
>>     C320 #246.
>>
>>     On 9/18/20, 4:07 PM, "C320-list on behalf of Dan" <c320-list-bounces at lists.catalina320.com on behalf of danb70341 at gmail.com> wrote:
>>
>>         Thanks Jeff I thought that was the case so will have to check you tube on how to do it and the pump is expensive (westerbeke) so will see alternatives.
>>
>>         Sent from my iPhone
>>
>>> On Sep 18, 2020, at 3:07 PM, Jeff Hare <Catalina at thehares.com> wrote:
>>>
>>> Nope.  Raw water pump leaking out the weep hole means seals are worn out.
>>> Most likely the body inside is also scored and the impeller faces aren't making a good seal.  Not the tips of the impeller but the front and back side surfaces of the impeller that rub against the back plate and the inside flat.Don't bother with the replacement seal kit.  It really isn't the answer.  Just get a new pump.  Don't know whether you have the Japanese yanmar or the westerbeke...If it's the antifreeze engine water pump, that doesn't have a rebuild kit that I'm aware of.Just but a new pump, spray the old one with wd40 and store it in a Ziploc bag if you feel you need a backup spare.  Unlikely you'll ever use it though...CheersJeff Hare#809
>>> -------- Original message --------From: Dan <danb70341 at gmail.com> Date: 9/18/20  2:48 PM  (GMT-05:00) To: c320-list at lists.catalina320.com Subject: [C320-list] Water pump weep hole Is there any other reason for water dripping out of water pump weep hole other than faulty water pump?Dan BochniakTranquility #250 1995Sent from my iPhone
>>
-- 
Michael Mellon
45 Ortalon Ave
Santa Cruz, CA 95060
mmellon at cruzio.com
831-425-5583 Home