[C38] How do I tell if my heat exhanger is not working?

[1derful at comcast.net]

oil looks clear. 
water is clear 
I flushed cooling system and rusty water came out. 
so water can't leak out of a defective heat changer? Right? 

----- Original Message -----

From: "Mark Lewis" <mwlewis2025 at gmail.com> 
To: "Catalina" <listserve at catalina38.org> 
Sent: Thursday, August 6, 2015 11:55:55 AM 
Subject: Re: [C38] How do I tell if my heat exhanger is not working? 



No. Water loss would mean a gasket or hose leak, or a cracked block or head (not likely). Are the oil and water pure (ie not mixing with each other)? They are tough engines, look for leaks. 
On Aug 5, 2015 2:09 PM, < 1derful at comcast.net > wrote: 



Thanks for your reply. 
If the heat exchanger is dirty will that cause water loss? 



From: "Mark Lewis" < mwlewis2025 at gmail.com > 
To: "Catalina" < listserve at catalina38.org > 
Sent: Wednesday, August 5, 2015 10:35:34 AM 
Subject: Re: [C38] How do I tell if my heat exhanger is not working? 



Another suggestion is to remove the exchange r and clean it. The tubes collect calcification and a wire pipe cleaner can clean it. 
On Aug 5, 2015 10:51 AM, "Patrick" < 1derful at comcast.net > wrote: 

<blockquote>

Thanks for your advice 

Sent from my iPhone 

On Aug 4, 2015, at 3:18 PM, Max soto < maxsoto at gmail.com > wrote: 


<blockquote>

I used my 5424 without a thermostat and a 3" heat exchanger for 12 years and had no problems.. 

Patrick, check on eBay for the heat exchanger... You might find a bargain! 

Regards, 

Max Soto A. 
+506-8312-1367 
Alajuela, Costa Rica 

On Aug 3, 2015, at 08:47, Mark Lewis < mwlewis2025 at gmail.com > wrote: 


<blockquote>



Patrick, I read somewhere that the cooling system doesn't work with out the thermostat installed. I was going to leave it out to make the engine run cooler, but had to put a new one in. 
On Aug 1, 2015 11:29 PM, < 1derful at comcast.net > wrote: 

<blockquote>


Hello, 
My Catalina has been overheating. Universal Diesel 5424. 
I removed the thermostat........it was corroded and wrapped with debris. 
I removed and cleaned the internal water pump. Also lot of debris. 
Put hose in engine. Water didn't flow but eventually it did. More debris. 
now when I run the engine it is cool until I put on the radiator cap..........then it gets too hot and loses water. 
Any thoughts? 
Patrick 

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