Re: Engine overheating - Amel54

Sv Garulfo


I don’t think one should hear gurgling after the first few seconds of engine runtime. To me, continuous gurgling is a sign of an air leak somewhere in the raw water circuit. 

When it was happening to us, we eventually found the source of the air leak as being at the anchor wash check valve, letting air enter the circuit from the outlet at the bow. One easy way to check that is to tape over that outlet and hear the gurgling disappear. 

I don’t know if such an air leak could be enough to explain a overheating engine though. 


On 25 Jul 2021, at 21:11, CW Bill Rouse <brouse@...> wrote:

You should hear gurgling.

Here is a snippet from my book, My guess is that there is debris on the front end of the ZF transmission oil cooler. Read and do this cleaning and let me know.
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar

On Sun, Jul 25, 2021 at 1:59 PM David Crisp <david@...> wrote:
Hi All,

I've a problem with my engine D3-110i-C engine running hot (it has 1350hrs on the clock)  I'm having to keep the rev's down at 1100RPM of less otherwise the engine temp steadily rises, so that once it gets to 95degC I back of  the revs.

Apart from the temperature gauge, if I let it run hot some steam can be seen in the exhaust.

Another thing I've noticed is some gurlgling noise coming from the cockpit drain - I'm suspicious this is coming from the anti-syphon bleed hose from the exhaust anti-syphon loop.

I've check the sea water intake, the sea-chest strainer, changed the impeller (it was okay), I've bled air out of the top of the sea chest, I've taken the hoses off the exhaust elbow and that appears clear.

Any suggestions?

David Crisp
SV Wilna Grace
Amel 54 #58

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