Topics

[Amel Yacht Owners] Onan Generator


Mark Erdos
 

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Heinz Stutenbaeumer
 

All the electrical fuses are in. The diesel runs perfectly when I hold it Manuel at the start. Something has to tell him he's shutting
Heinz 

Am 29.11.2018 06:52 schrieb "'Mark Erdos' mcerdos@... [amelyachtowners]" <amelyachtowners@...>:

 

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama



John Clark
 

Are you checking for fault codes at the remote start panel?
    John

SV Annie  SM37
Le Marin MQ

On Thu, Nov 29, 2018, 9:36 AM Heinz Stutenbaeumer heinz@... [amelyachtowners] <amelyachtowners@... wrote:
 

All the electrical fuses are in. The diesel runs perfectly when I hold it Manuel at the start. Something has to tell him he's shutting
Heinz 

Am 29.11.2018 06:52 schrieb "'Mark Erdos' mcerdos@... [amelyachtowners]" <amelyachtowners@...>:
 

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama



John Clark
 

A thought,  how are you increasing speed?  The genset governor should handle that automatically


On Thu, Nov 29, 2018, 9:36 AM Heinz Stutenbaeumer heinz@... [amelyachtowners] <amelyachtowners@... wrote:
 

All the electrical fuses are in. The diesel runs perfectly when I hold it Manuel at the start. Something has to tell him he's shutting
Heinz 

Am 29.11.2018 06:52 schrieb "'Mark Erdos' mcerdos@... [amelyachtowners]" <amelyachtowners@...>:
 

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama



Craig Briggs
 

Heinz,

I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., <mcerdos@...> wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


 

Heinz,

The most likely fault is 2 things:
The Onan Governor as Mark and others have said. This governor keeps the generator at constant RPM, regardless of load. The generator is required to be at constant RPM in order to generate electricity at the correct Frequency (50htz). It should never be at idle. Your generator should ALWAYS run at 1,500 RPM.

Are you sure that you know where the Main Breaker is on your Onan. When looking at the control panel, the main breaker is on the left side of the generator, to the back of the left side, near the top.

I am guessing that the governor failed, causing the Main Breaker to OPEN.

I suggest that you get an Onan Certified Technician on board. The Onan OEM governor costs about $380, plus labor. 

Best,

CW Bill Rouse
Admiral, Texas Navy
Commander Emeritus
Amel School www.amelschool.com
720 Winnie St
Galveston Island, TX 77550
+1(832) 380-4970


On Thu, Nov 29, 2018, 12:26 sangaris@... [amelyachtowners] <amelyachtowners@... wrote:
 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Heinz Stutenbaeumer
 

Thanks fore the anther but how do I re-flash a generator?
Heinz



Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


eric freedman
 


Craig Briggs
 

Hi Heinz,

It is very easy, but I would suggest you "google" it on a site in your native language. Basically it is putting 12v across the coils to excite the generating circuit. There are many "U" tube expanations, too.

Good luck with it,
Craig


---In amelyachtowners@..., <heinz@...> wrote :

Thanks fore the anther but how do I re-flash a generator?
Heinz



Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., <mcerdos@...> wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Craig Briggs
 

Hi again, Heinz,

I just stumbled across a technique to flash your generator that I had not seen before. Nor have I tried it but it sounds like fun and just might solve your problem..

Plug an electric drill into an outlet after you set all switches/breakers so the outlet would be energized if the generator were working. Start the generator (keep it running with the preheat switch or jumper the shut-down relay). With the drill switched to "forward", pull the trigger, which, of course, won't do anything because your Onan is not making electricity. Now, spin the drill backwards by hand, while holding the trigger on.  This will generate a small current which will "flash" the generator. If it works the drill will start to spin forwards, so be careful.

Let us know!
Cheers,
Craig SN68


---In amelyachtowners@..., <sangaris@...> wrote :

Hi Heinz,

It is very easy, but I would suggest you "google" it on a site in your native language. Basically it is putting 12v across the coils to excite the generating circuit. There are many "U" tube expanations, too.

Good luck with it,
Craig


---In amelyachtowners@..., <heinz@...> wrote :

Thanks fore the anther but how do I re-flash a generator?
Heinz



Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., <mcerdos@...> wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Danny Simms
 

Hi Heinz,

It is the same way as your engine mounted alternators have to be excited. Properly wired it happens when you turn the start key on. I guess it should work the same with the gen set. With your alternator if the exciting circuit is faulty the excitation can occur by reving your engine. This result tells you the alternator is OK and it is the excitation circuit where the fault lies. So perhaps your problem is in the excitation circuit

Regards

Danny

SM 299 Ocean Pearl


On Fri, 30 Nov 2018 at 09:17, 'Stutenbaeumer.Berlin' heinz@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Thanks fore the anther but how do I re-flash a generator?

Heinz



Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Craig Briggs
 

Hi Danny,
Actually it's a little different than your engine alternator. That does indeed have a direct 12v excitation wire that energizes when you turn the key on. On the Onan (or other gensets), the AC generation is dependent on having a residual magnetism begin the excitation process.  There isn't a separate 12v battery circuit. The residual magnetism can be lost with a long period of non-use, a shock load on the system that kills the engine, which is likely Heinz's case, our faulty brushes.
Cheers, Craig SN68


---In amelyachtowners@..., <sailorman.ds@...> wrote :

Hi Heinz,

It is the same way as your engine mounted alternators have to be excited. Properly wired it happens when you turn the start key on. I guess it should work the same with the gen set. With your alternator if the exciting circuit is faulty the excitation can occur by reving your engine. This result tells you the alternator is OK and it is the excitation circuit where the fault lies. So perhaps your problem is in the excitation circuit

Regards

Danny

SM 299 Ocean Pearl


On Fri, 30 Nov 2018 at 09:17, 'Stutenbaeumer.Berlin' heinz@... [amelyachtowners] <amelyachtowners@...> wrote:
 

Thanks fore the anther but how do I re-flash a generator?

Heinz



Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,


I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 
With any luck, you may simply have to re-flash the generator to solve the problem. 

If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

Let us know what you find.
Cheers, Craig SN68


---In amelyachtowners@..., <mcerdos@...> wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama


Heinz Stutenbaeumer
 

Thanks to all.

I had to go back to Germany for Christmas and new year.

So I cannot try all off your Ideas in the moment.  

 

Fair Winds  

Heinz SM 2000 Quetzal 292

 

Von: amelyachtowners@...
Gesendet: Freitag, 30. November 2018 23:57
An: amelyachtowners@...
Betreff: Fwd: [Amel Yacht Owners] Onan Generator

 

 

Hi Heinz,

It is the same way as your engine mounted alternators have to be excited. Properly wired it happens when you turn the start key on. I guess it should work the same with the gen set. With your alternator if the exciting circuit is faulty the excitation can occur by reving your engine. This result tells you the alternator is OK and it is the excitation circuit where the fault lies. So perhaps your problem is in the excitation circuit

Regards

Danny

SM 299 Ocean Pearl

 

On Fri, 30 Nov 2018 at 09:17, 'Stutenbaeumer.Berlin' heinz@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Thanks fore the anther but how do I re-flash a generator?

Heinz

 


Am 29.11.2018 um 10:41 schrieb sangaris@... [amelyachtowners] <amelyachtowners@...>:

 

Heinz,

 

I believe your Onan has a "No AC Output" shutdown switch that would shut it down as you describe. 

With any luck, you may simply have to re-flash the generator to solve the problem. 



If that doesn't work you'll want to check the circuitry on the generator for winding continuity, resistance through the brushes, etc. (I assume you have fixed the short circuit, of course, and checked breakers.)

 

Let us know what you find.

Cheers, Craig SN68



---In amelyachtowners@..., wrote :

Heinz,

 

I think you are dealing with a couple of issues.

 

Since you had an electrical short did you check the master circuit breaker on the generator?

 

Is the fuel supply sufficient? Are you getting enough fuel from the electric pump? Is the fuel clean? The most common cause of a diesel engine shutting down once it has started is lack of fuel. Believe it or not, it is very hard to stop a running diesel engine.

 

 

 

 

With best regards,

 

Mark

 

Skipper

Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Santa Marta, Colombia

www.creampuff.us

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Thursday, November 29, 2018 7:55 AM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Onan Generator

 

 

Hello
I would have yesterday with Onan generator switched on a short circuit in an electric line.
Then the generator went out.
The generator starts since then briefly, then goes out however immediately again.
Only if I increase the speed of the generator manually after the start, it remains on, but does not generate electricity.
Somebody knows advice.
I am grateful for each suggestion
Heinz
Super Maramu 2000, 292 Panama