Engine overheating - Amel54


David Crisp
 

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


 

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.
image.png
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


Mark Erdos
 

David, I am not that familiar with the D3 but I am certain you have a blockage in your raw-water cooling system. Start at the sea chest and work your way along the entire raw-water cooling system ending at the elbow. Remove and clean any heat exchangers (transmission, engine cooling, and after cooler). Check all the hoses to ensure they are clear of debris and ensure the raw-water pump is clean inside. This will solve your issue. Somewhere in the system you will have an “ah ha” moment. It is best to do the entire system since if you have a blockage somewhere, the chances are you’ll have more downstream. Don’t stop at the “ah ha” moment.

 

This is also a good time to replace the seals/o-rings on the heat exchangers as well as any worn hoses.  

 

Hope this helps.

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia

www.creampuff.us

 

From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of David Crisp
Sent: Sunday, July 25, 2021 8:59 AM
To: main@AmelYachtOwners.groups.io
Subject: [AmelYachtOwners] Engine overheating - Amel54

 

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


Mohammad Shirloo
 

Hello David;

 

You are getting some sound advice from others on the forum and any one of them could be your problem.

 

A malfunctioning thermostat, may also present all the symptoms you describe. One simple test would be to remove the thermostat, and see if you have the same issue. If yes, then the thermostat is not your problem. If the engine stays cooler than 80 Celsius and takes a long time to come up to temperature, then the issue s the thermostat.

 

Respectfully;

 

 

Mohammad and Aty

B&B Kokomo

Amel 54 #099

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of David Crisp via groups.io
Sent: Sunday, July 25, 2021 11:59 AM
To: main@AmelYachtOwners.groups.io
Subject: [AmelYachtOwners] Engine overheating - Amel54

 

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


Sv Garulfo
 

Bill,

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. 

Best
Thomas
GARULFO 
A54-122
TAHITI 

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.
<image.png>
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


David Crisp
 

All,

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


Randall Walker
 

David,
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.”

Randall
A54#56

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

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


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
AMEL 54

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


David,
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.”

Randall
A54#56
<IMG_4618.jpeg>

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

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


Ulrich Michael Dangelmeyer
 

Yes Dimitris 
And once per season at least you should shallow your circuit with 5 litres of white vinegar over Night... that bursts the dirt off next morning, promised!
Ulrich Michael 
„Soleil Bleu“ A54#088
Leros Greece.


Am 28.07.2021 um 21:30 schrieb Dimitris Krasopoulos <dkrasopoulos@...>:

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
AMEL 54

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


David,
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.”

Randall
A54#56
<IMG_4618.jpeg>

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

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


Danny and Yvonne SIMMS
 

Hi David, you can check/clean the sea chest inlet in the water. Take the top off, have a rod/tube of suitable diameter and length ready. Turn the seacock on and run the rod up and down. Takes a few seconds, turn the seacock off. Water does flow in but in the time you have it open it is not a problem. Shell fish like oysters and mussels love to grow in the tube.

Regards

Danny

SM 299 Ocean Pearl

On 29 July 2021 at 01:22 David Crisp <david@...> wrote:

All,

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


 


image.png

CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar

On Wed, Jul 28, 2021 at 2:01 PM Danny and Yvonne SIMMS <simms@...> wrote:

Hi David, you can check/clean the sea chest inlet in the water. Take the top off, have a rod/tube of suitable diameter and length ready. Turn the seacock on and run the rod up and down. Takes a few seconds, turn the seacock off. Water does flow in but in the time you have it open it is not a problem. Shell fish like oysters and mussels love to grow in the tube.

Regards

Danny

SM 299 Ocean Pearl

On 29 July 2021 at 01:22 David Crisp <david@...> wrote:

All,

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


Jose Venegas
 

One thing to keep in mind is to make sure that any growth or pieces of shells are cleaned away and do not remain inside the sea chest. I did not do that once and they migrated to the engine heat exchanger suddenly clogging it completely!! It was so bad that the pressure in the pipe increased to the point of blowing out one of the hoses and triggering an alarm. This happened in the worse moment as I was leaving an anchorage in Union Island through a narrow channel between two reefs. My good Ultra anchor was rapidly deployed and saved the day.

Jose Venegas
Ipanema SM278
Currently in Turtle bay marina, Panama