[C320-list] Broken Impellar

[Warren Updike]

When our #62 was ours for about a year or two, I had overheating problems.
In removing the fwd cap from the heat exchanger, I found 7 impeller blades
there. There was more than one color blade so I know it was more than one
incident. None of them were from our ownership. So, for maybe two years I
did not have a problem. Then, for no explainable reason, they became a
problem. Hard find, easy fix. Also a Perkins engine.

Warren & Pattie Updike
Catalina 320, #62, "Warr De Mar"
Middle River, Chesapeake Bay

-----Original Message-----
From: Jane & Ken [mailto:obuoy4848 at sbcglobal.net] 
Sent: Sunday, April 11, 2010 12:05 PM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] Broken Impellar

Kurt,
I have had three vanes missing (don't ask) without any problems on my
Perkins engine.  I was able to locate them in the heat exchanger and discard
them.  My vanes were small enough to not block too much water flow.   OBUOY
#219,  Ken Cathey

--- On Sun, 4/11/10, Kurt R. Budelmann, M.D. <krbmd77 at charter.net> wrote:


From: Kurt R. Budelmann, M.D. <krbmd77 at charter.net>
Subject: [C320-list] Broken Impellar
To: C320-List at Catalina320.com
Date: Sunday, April 11, 2010, 10:40 AM


I opened up the water pump to replace the impellar and noticed one of the
vanes is missing.  I could not get to the heat exchanger to open it and look
for the missing vane.  What is the best case scenario and the worst case
scenario if I don't do anything?

I have the 3YM-30 Yanmar engine.  Does anyone know how to remove the
alternator to get to the front of the heat exchanger?

Thanks,

Kurt