[C320-list] Raw water pump

[Ken Geiger]

I should have included Ocean Marines complete caution, as below at


https://bigblueoceanmarine.com/yanmar-replacement-engine-cooling-pump-jpr-ym08ih2-replaces-yanmar-128377-42500-johnson-10-24509-02/



"PLEASE NOTE:
JPR-YM08IH2 is ONLY for 2GM or 3GM as per the cross-reference part numbers in product information below. This should NOT be confused with 2GMF or 3GMF models. If you have the 2GMF or 3GMF please refer to JPR-YM08IH and its cross-reference information. If still unsure please contact us with your question.

You must use JPR-YM08IH2 pump model to replace Yanmar 128377-42500 as there is a difference in revolutions per minute vs the JPR-YM08IH (Flow rate of JPR-YM08IH is greater vs JPR-YM08IH2) which some have thought is good for both this Yanmar number and 128397-42500 . . . this is not true. Use JPR-YM08IH2 to replace Yanmar 128377-42500.
What is the internal difference between JPR-YM08IH2 and model JPR-YM08IH?
The difference is the thickness of the machined "Cam" which is incorporated or part of the Body / Casing itself. The machined cam thickness is less (2mm) for JPR-YM08IH2 vs a larger thickness (4mm) found in the JPR-YM08IH. This is why it is very important to order the correct pump for your model of engine by referring the the cross-reference information provided."


Ken Geiger
Northern Dream #765




 

 

 

---- Original Message ----
From: Onat Dogruer <onatdogruer at gmail.com>
To: C320-List at Catalina320.com <C320-List at catalina320.com>
Cc: c320-list <c320-list at lists.catalina320.com>
Sent: Wed, Aug 1, 2018 10:59 am
Subject: Re: [C320-list] Raw water pump

We have 3GM30F-YEU on board. The cost of rebuild kit (+amount of time)
vs new pump is not worth it. Besides, new Johnson pump has a higher
output than the older version.

The new part # for Yanmar is: 128397-42500 for this specific engine.

Simple installation, probably 15 min of labor.

Onat
S/V Kittiwake
1998, #546

On Tue, Jul 31, 2018 at 9:45 PM, Crosby Roper <vmdatsea at hotmail.com> wrote:
> I agree with Dick. a penny saved is often hours of frustration and cost earned. It’s not that much in the big scheme of boat ownership.
>
> Sent from my iPhone
>
>> On Jul 31, 2018, at 9:01 AM, Dick Walker <dickwalker at att.net> wrote:
>>
>> 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 <ttalling at gmail.com> wrote:
>>>
>>>
>>> Can anyone recommend an affordable aftermarket raw water pump that holds up?
>>> Regards,
>>>
>>> Tom Talling
>>> One Shot
>>> Bohemia River
>>> TTalling at comcast.net
>>> 215-262-1427
>>>
>>> Please excuse my brevity.
>>>
>>> Sent from my iPhone
>>