Re: Engine overheating - Amel54

Dimitris Krasopoulos

I had the same the main problem is the sea water cooled refrigerators they circulate all the time through the sea chest and clog all the systems. This is a difficult problem which can be sold by the fresh water tank circulation for cooling the compressors if the refrigerators.

Στάλθηκε από το iPhone of Dimitris Krasopoulos 
Alma Libre Too

On Jul 28, 2021, at 5:38 PM, Randall Walker <sailingalbedo@...> wrote:

Does your sea chest look like this picture. I was in Gib and the hull was very clean with no scrapping required. But after just a few months this happened.
And it can migrate through the whole cooling system. I have started doing regular flushing with mild hydrochloric solution, similar to Barnacle buster. 
Yes I was shocked how quickly it formed.”


On Wed, Jul 28, 2021 at 09:22 David Crisp <david@...> wrote:

The problem turned out to be the transmission oil cooler which was 3/4 blocked.  The gurgling has stopped - I'm pretty sure this was the exhaust anti-syphon pipe sucking in air because of the upstream blockage.

Thanks for all the advice, really grateful.

Interestingly, now sea water can flow at full rate, when I rev the engine to over 2,000 to engage the alternator the sea chest alarm sounds, so at least I know that works!  I'm hauling out next week and will give the sea chest inlet a thorough check and clean out.
David Crisp
SV Wilna Grace
Amel 54 #58

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