[C320-list] Perkins Raw Water Pump

[Warren Updike]

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