[C320-list] Perkins Raw Water Pump

[Irving Grunes]

All,
Again before trying a rebuild, check ebay for a replacement pump.
On our Yanmar 3GM it was so cheap, it didn't pay to consider a rebuild.
Replace and throw the old one away.
Irv 2001 #851

On Mon, Jul 11, 2011 at 5:48 PM, Warren Updike <wupdike at hotmail.com> wrote:

> Myron, I'm interested in your project as my Perkins is approaching 2,000
> hrs
> and I will probably need a rebuild of the pump before long.
>
> I've not done this so my advice is anecdotal.  It is a Jabsco pump and
> parts
> are readily available.  I've thought I would have mine rebuilt as I've no
> idea what's involved in the rebuild: do I have the necessary tools.  I've
> used a web site www.depcopump.com that has lots of good info about such
> pumps.  I've thought I would get a rebuild estimate from them.  You can
> also
> get the necessary parts from them.
>
> Removing the pump is probably doable considering that since you're asking
> the question you're probably considering doing it yourself.  However, refer
> to Section X, of the Detroit Diesel manual for instructions on this pump.
> It says, "Attention": Do not remove the drive housing of the raw water
> pump.
> The alignment of this housing has been carefully adjusted with a special
> alignment tool."  Then it refers to 4 "set screws" that fasten the pump to
> the drive housing that you may remove.
>
> As for the serial number, as I remember, it is stamped on a plate attached
> to the engine on the stbd side forward somewhere above the high-pressure
> fuel pump.  I think it records a model and serial number. Mine is: model
> KD3024J; Serial: 51554X.  If you have trouble locating it, let me know and
> I'll verify where mine is located.
>
> Hope this helps.
>
> Warren & Pattie Updike
> 1994 C320 #62 "Warr De Mar"
>
>
> -----Original Message-----
> From: Welch, Myron D [mailto:myron-welch at uiowa.edu]
> Sent: Sunday, July 10, 2011 10:57 PM
> To: <C320-List at Catalina320.com>
> Subject: [C320-list] Perkins Raw Water Pump
>
> The raw water pump shaft seal on my 1995 Perkins is dripping. The engine
> has
> just under 1,000 hours of use.
>
> Is it best to put in a new seal or should I just replace the complete pump?
>
> If replacing the pump, where is a good place to purchase without breaking
> the bank?
>
> Is this an easy job to remove and replace or should the boatyard mechanic
> do
> it?
>
> One company asked me for the serial number of the engine. Where do I find
> the SN?
>
> Thanks for your help.
>
> Myron Welch
> Wind Instrument, #238
> Iowa City, Iowa
>
>