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

[Mark Lewis]

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:
>
>> Thanks for your advice
>>
>> Sent from my iPhone
>>
>> On Aug 4, 2015, at 3:18 PM, Max soto <maxsoto at gmail.com> wrote:
>>
>> 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:
>>
>> 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:
>>
>>>
>>> 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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