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Open Roads Forum  >  Tech Issues

 > Running portable generator off vehicle fuel tank.

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Grit dog

Black Diamond, WA

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Posted: 09/20/22 04:52pm Link  |  Quote  |  Print  |  Notify Moderator

jjrbus wrote:

On another forum someone posted about running a Honda EU2200i off the original fuel line from the removed Onan. I have been using the mighty little Honda forever and never heard of tapping into the vehicle fuel supply. Does not seem right? Any input on this.


If you don't have a RV where there is already an aux fuel line and pump to a built in generator, it would be very prohibitive IMO.
If you do, then it would still be quite involved to make it a Hands Off system, although it could easily be a handy storage tank and gas pump to fill a remote located generator.


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jjrbus

FT Myers FL

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Posted: 09/21/22 03:17pm Link  |  Quote  |  Print  |  Notify Moderator

I am not a mechanic, the only experience I had was when I had my gas tank cleaned and lined. I had the tank bolted in and most of the hoses hooked up. Took a break and when I came back out gas was coming out of one of the small lines that was not hooked up. I removed the gas cap releasing the pressure and the gas stopped flowing. I had put about 5 gallons of gas in the tank to check for leaks.

Skibane

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Posted: 09/21/22 07:15pm Link  |  Quote  |  Print  |  Notify Moderator

Another option would be to install a propane conversion kit on your portable generator, and plumb it into one of the RV's existing low-pressure propane lines.

Bobbo

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Posted: 09/21/22 09:28pm Link  |  Quote  |  Print  |  Notify Moderator

Keep in mind that propane only has about 80% of the BTUs per volume that gasoline has. You have to derate the generator by about 20%. So a Honda EU2000i that is 2000 watts surge and 1600 watts continuous is only 1600 watts surge and 1280 watts continuous on propane.


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shastagary

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Posted: 09/22/22 11:12am Link  |  Quote  |  Print  |  Notify Moderator

this guy set up his predator generator to be refilled with a manual activated electric fuel pump and a catch bottle to see when its full
he later installed a night vision camera and a inside remote switch to fill the generator.

youtube Generator Project - RV Living

jjrbus

FT Myers FL

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Posted: 09/23/22 05:13am Link  |  Quote  |  Print  |  Notify Moderator

Interesting setup with the predator. Youngster seems to have put a lot of thought into it, yet he did not pull fuel directly from the vehicle tank. Wonder what his thinking was?? Is he old enough to drive?? LOL

shastagary

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Posted: 09/24/22 12:52pm Link  |  Quote  |  Print  |  Notify Moderator

he did pull fuel from the rv fuel tank as the compartment he used was the original generator compartment and the fuel line was already there.
when he filled the generator tank to full it would over flow into the catch bottle so he could see when the generator tank was full he later installed a night vision camera and a switch inside by his camera monitor to see the overflow bottle so he could release the momentary fill switch and stop the pump.
he had a hour meter and a compartment fan plugged into the generator also.

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