| [GMCnet] Onan only running choked [message #278366] |
Mon, 25 May 2015 10:42  |
Daniel DeLuca
Messages: 120
Registered: June 2014
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Hello,
My onan 6k which ran well last season this season developed a hunt. After a quick spray down of the carb it is now at the point whew it will only run choked. I mean fully choked. The funny thing is it actually runs okay choked with enough grunt to power the main AC.
Still I can't leave it this way. It looks like a carb issue to me. Anyone run into something similar?
Dan
78 Eleganza
NJ
Sent from my iPhone
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| Re: [GMCnet] Onan only running choked [message #278368 is a reply to message #278367] |
Mon, 25 May 2015 11:04  |
Daniel DeLuca
Messages: 120
Registered: June 2014
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Emery,
Thanks, just to clarify do you mean the gasket on the bowl retaining bolt or is there another one on the jet?
Dan.
Sent from my iPhone
> On May 25, 2015, at 11:50 AM, Emery Stora wrote:
>
> I would suggest that you pull the high speed jet from the bottom side of the float bowl. You'll likely find that the "o" ring if damaged or worn and allowing too much air in.
>
> The original is not round but It can be replaced with a round one which has 1/8" ID and 1/4" OD.
>
> Set the initial to 1-1/2 turns from closed and adjust it for best running.
>
> I carry several of these o rings with me and have replaced at least a couple dozen at rallies to fix Onans with the problem you describe.
>
> Emery Stora
> 77 Kingsley
> Frederick, CO
>
>> On May 25, 2015, at 9:42 AM, Daniel DeLuca wrote:
>>
>> Hello,
>>
>> My onan 6k which ran well last season this season developed a hunt. After a quick spray down of the carb it is now at the point whew it will only run choked. I mean fully choked. The funny thing is it actually runs okay choked with enough grunt to power the main AC.
>>
>> Still I can't leave it this way. It looks like a carb issue to me. Anyone run into something similar?
>>
>> Dan
>> 78 Eleganza
>> NJ
>>
>> Sent from my iPhone
>> _______________________________________________
>> GMCnet mailing list
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| Re: [GMCnet] Onan only running choked [message #278369 is a reply to message #278368] |
Mon, 25 May 2015 11:31 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Senior Member |
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When you pull the jet you will see a small o ring on the jet. The gasket on the bowl retaining bolt is much, much larger than 1/4’ OD.
You can find that o rings at auto parts stores, ACE hardware, etc.
Emery Stora
> On May 25, 2015, at 10:04 AM, Daniel DeLuca wrote:
>
> Emery,
>
> Thanks, just to clarify do you mean the gasket on the bowl retaining bolt or is there another one on the jet?
>
> Dan.
>
> Sent from my iPhone
>
>> On May 25, 2015, at 11:50 AM, Emery Stora wrote:
>>
>> I would suggest that you pull the high speed jet from the bottom side of the float bowl. You'll likely find that the "o" ring if damaged or worn and allowing too much air in.
>>
>> The original is not round but It can be replaced with a round one which has 1/8" ID and 1/4" OD.
>>
>> Set the initial to 1-1/2 turns from closed and adjust it for best running.
>>
>> I carry several of these o rings with me and have replaced at least a couple dozen at rallies to fix Onans with the problem you describe.
>>
>> Emery Stora
>> 77 Kingsley
>> Frederick, CO
>>
>>> On May 25, 2015, at 9:42 AM, Daniel DeLuca wrote:
>>>
>>> Hello,
>>>
>>> My onan 6k which ran well last season this season developed a hunt. After a quick spray down of the carb it is now at the point whew it will only run choked. I mean fully choked. The funny thing is it actually runs okay choked with enough grunt to power the main AC.
>>>
>>> Still I can't leave it this way. It looks like a carb issue to me. Anyone run into something similar?
>>>
>>> Dan
>>> 78 Eleganza
>>> NJ
>>>
>>> Sent from my iPhone
>>> _______________________________________________
>>> GMCnet mailing list
>>> Unsubscribe or Change List Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
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> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Onan only running choked [message #278410 is a reply to message #278366] |
Mon, 25 May 2015 21:41 |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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Senior Member |
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Daniel DeLuca wrote on Mon, 25 May 2015 10:42Hello,
My onan 6k which ran well last season this season developed a hunt. After a quick spray down of the carb it is now at the point whew it will only run choked. I mean fully choked. The funny thing is it actually runs okay choked with enough grunt to power the main AC.
Still I can't leave it this way. It looks like a carb issue to me. Anyone run into something similar?
Dan
78 Eleganza
NJ Definitely a vacuum leak. Like the bolts that hold the carb on were loosening and the carb was bouncing around, then part of the gasket wore off and it is sucking a constant amount of air now.
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