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 > convert gas generator to propane

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joebedford

Finally back home in the north

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Posted: 01/10/19 08:00pm Link  |  Quote  |  Print  |  Notify Moderator

My 5er has two gas tanks: 20 gallons for the generator and 30 gallons for the toys. Of course the 30 gallons can easily be pumped into the generator tank.

johntank

North MS

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Posted: 01/11/19 05:51pm Link  |  Quote  |  Print  |  Notify Moderator

Moderator please lock or delet this thread as I have not gotten any real useful answers.

Thank You

johntank

fj12ryder

Platte City, MO

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Posted: 01/11/19 05:59pm Link  |  Quote  |  Print  |  Notify Moderator

You're welcome, come back anytime.


Howard and Peggy

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philh

Belleville MI

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Posted: 01/11/19 06:50pm Link  |  Quote  |  Print  |  Notify Moderator

Pure gas is good

Aviation gas is better

JaxDad

Greater Toronto Area

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Posted: 01/12/19 05:46am Link  |  Quote  |  Print  |  Notify Moderator

johntank wrote:

Moderator please lock or delet this thread as I have not gotten any real useful answers.

Thank You

johntank


It that’s your thoughts why did you even start here?

There’s plenty of online info, Google IS your friend. It’s dead simple, you need a vapourizer, regulator, tank(s), lines and some form of carb adapter plate, or a new carb altogether.

The chances of finding someone who’s done this anywhere is slim, on a single forum? Buy a PowerBall ticket, I think the odds are better.

Realistically however, unless you remove the fuel tank and replace it with a ASME type permanent tank you’re going to stuck with 20 or 30 pounders for a fuel source, read ‘very expensive’.

joebedford

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Posted: 01/12/19 05:56am Link  |  Quote  |  Print  |  Notify Moderator

johntank wrote:

Moderator please lock or delet this thread as I have not gotten any real useful answers.

Thank You

johntank
You're welcome. Bibi.

bobsallyh

Livingston, TX.

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Posted: 01/12/19 10:25am Link  |  Quote  |  Print  |  Notify Moderator

It just fascinates me that so many genny manufactures now have dual fuel setups, by just throwing a switch, while Onan just keeps plugging along with old style technology.

road-runner

Oregon

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Posted: 01/12/19 11:00am Link  |  Quote  |  Print  |  Notify Moderator

johntank wrote:

Moderator please lock or delete this thread as I have not gotten any real useful answers.

Thank You

johntank
You asked 3 very specific questions, and from 23 prior responses, none have been answered. Of those 23 responses, about 14 of them have stated to some degree that you shouldn't make the conversion. Not knowing how you use your generator I won't assume to know what's best for you, but will say it all depends on your usage model. I have a propane 4k Onan, and it's a good choice for the way I use it. In 10 years, I've needed it for the air conditioner about 2 times. I don't use it to charge the battery because it's so darn noisy, using a small portable generator instead. The Onan gets used infrequently for short periods of time, more often than not for running the microwave. Having to top off the propane a bit more often is a lot easier for me than worrying about old fuel and/or a gummed up carburetor.

And I just made it worse with another post that doesn't answer your questions.


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MrWizard

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Posted: 01/12/19 12:46pm Link  |  Quote  |  Print  |  Notify Moderator

RVs with propane generators, have frame mounted tanks
I have never seen an RV with portable cylinders and a propane powered built in Onan generator

We had a DP with a propane Onan generator, as dry campers, propane is costly and a hassle

The OP stated his generator is used infrequently, he believes the conversion to be worth while, I think it would cost less and be more efficient, to just exercise his Onan once a month and keep stabilizer in his fuel

He thinks he did not get any helpful info
He did not get change over conversion info, because nobody here has done what he wants to do
He got lots of helpful info, but not the info he wanted
Sometimes learning that what you want to do, is not very feasible, is helpful info

Like our parents telling us not to do things we wanted to do when we were children

This doesn't fall in the same category, as riding the bicycle down the barn roof into the snow drift

But the concept is the same,
Don't get offended because you don't get the consensus and info you want
Maybe what you want isn't the best way

If the OP pursues this and finds the way
I hope he comes back with pictures and detailed info on the how-to

* This post was last edited 01/12/19 01:25pm by MrWizard *   View edit history


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Chum lee

Albuquerque, NM

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Posted: 01/12/19 02:30pm Link  |  Quote  |  Print  |  Notify Moderator

This isn't that hard. Google is your friend. First hit on Google searching for:

"converting an Onan 4000 gas to propane"

https://centuryfuelproducts.com/onan-microquiet-4000-df

A veritable plethora of information, none of which I have tried, but hey, if Onan can do it both ways from the factory, how hard can it be?


Chum lee

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