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Onan Carb Adjustment Screw [message #288759]

Wed, 14 October 2015 18:52

Dan

Messages: 99
Registered: August 2014
Location: Allentown, NJ

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Member

I rarely use my Onan but decided to wake it up in case I needed it this weekend. After some typical fiddling I could not get it to run for more than a few minutes. It wanted to be choked. I realized that the main adjustment screw was tightening itself from the vibration. My inelegant solution was to put a drop of RTV on the screw when I had it adjusted and running smoothly. That seemed to work well, but has anyone run into this before?

Dan DeLuca 1978 Eleganza II (http://imgur.com/gallery/YFHhK) Parked at Evil Monkey Farm in Allentown, New Jersey

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Re: [GMCnet] Onan Carb Adjustment Screw [message #288767 is a reply to message #288759]

Wed, 14 October 2015 19:34

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

The seal on the main jet is worn. That means that it is also likely leaking air.

Best to replace it. An o ring 1/8" I'd x 1/4" od will work fine and it won't vibrate out of adjustment

Emery Stora
77 Kingsley
Frederick, CO

> On Oct 14, 2015, at 5:52 PM, Daniel DeLuca wrote:
>
> I rarely use my Onan but decided to wake it up in case I needed it this weekend. After some typical fiddling I could not get it to run for more than
> a few minutes. It wanted to be choked. I realized that the main adjustment screw was tightening itself from the vibration. My inelegant solution
> was to put a drop of RTV on the screw when I had it adjusted and running smoothly. That seemed to work well, but has anyone run into this before?
>
>
> --
> Dan DeLuca
> 1978 Eleganza II (http://imgur.com/gallery/YFHhK)
> Parked at Evil Monkey Farm in
> Allentown, New Jersey
>
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Re: Onan Carb Adjustment Screw [message #288775 is a reply to message #288759]

Wed, 14 October 2015 20:11

Dan

Messages: 99
Registered: August 2014
Location: Allentown, NJ

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Is that the one that was originally square?

Dan DeLuca 1978 Eleganza II (http://imgur.com/gallery/YFHhK) Parked at Evil Monkey Farm in Allentown, New Jersey

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Re: [GMCnet] Onan Carb Adjustment Screw [message #288778 is a reply to message #288775]

Wed, 14 October 2015 20:42

emerystora

Messages: 4442
Registered: January 2004

Karma: 13

Senior Member

> On Oct 14, 2015, at 7:11 PM, Daniel DeLuca wrote:
>
> Is that the one that was originally square?
> --
> Dan DeLuca
> 1978 Eleganza II (http://imgur.com/gallery/YFHhK)
> Parked at Evil Monkey Farm in
> Allentown, New Jersey
>
That is correct but the round one works just fine.

Emery Stora

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