[C320-list] Coolant mixing with raw water

[Marianne Waterbury]

Dave,


If you can send me the detailed replacement procedure written with 
photos, I would really appreciate it, I'm starting to think it could be 
the tank. I'm heading to get the heat exchanger tested now. 
my email address is water23 at optonline.net


Kevin Waterbury
1994 Catalina 320 #111 Harvest Moon
Mount Sinai, NY


On Thu, Jun 27, 2019 at 09:11 AM, Dave Hupe wrote:

>  I think if it was a blown head gasket, you would quickly know it by 
> examining your oil color/level.  However, it sounds like you believe 
> the oil is fine.  That seems to strongly suggest that your problem is 
> either the heat exchanger tube or the tank itself being cracked.  If 
> the tube is cracked, coolant might seep in and be ejected along with 
> the seawater through the exhaust.  Similarly, if the tank is cracked, 
> it is possible coolant also can become part of the exhaust and be 
> directed through the exhaust elbow.
> I replaced my Perkins Perama M30 heat exchanger tank, reused the 
> exchanger tube (had it cleaned/tested) and exhaust elbow, and replaced 
> the end rubber caps this past Spring due to a cracked coolant filler 
> neck on my tank. I have a detailed replacement procedure written with 
> photos that I've submitted to the association for possible 
> publication.  I can send it directly if desired. I purchased all of 
> the parts from here in the United 
> Kingdom  https://www.parts4engines.com/perkins-perama-m30-parts/ . 
> Prices and shipping are very good and fast.  I have used them multiple 
> times (also for an engine water pump previously) with perfect success 
> and can't recommend them more highly. 
> Dave Hupe
> 1994 Cat320 (#32) "Mayan Sun"
> Holland, MI
>  
>