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Converting a Gasoline Generator to Tri-Fuel
#21
Here's my latest addition to this project. I didn't want to have to try to find a wrench in the darkness if I needed to hook up the generator quickly. So I went out today and picked up a 12" crescent wrench and epoxied a rare earth magnet that I pulled from an old harddrive. Now I can stick the wrench right to the LP tank or directly to the generator.

[Image: p1010266r.jpg]

[Image: p1010267cm.jpg]

Plus having the magnet on the fuel tank will align the molecules of the fuel before they exit the tank thus increasing the fuel economy. Wink
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#22
That is a wonderful idea and thanks so mush for sharing.

Question: After its installed can you move back is gas?

Can you easy use both---moving back and forth from
propane to gas?
INDEPENDENT & FREE THINKER
Pa.Bill, proud to be a member of pa2a.org since Oct 2012.
LIFE/ENDOWMENT MEMBER - NRA
LIFE MEMBER - VIETNAM VETERANS OF AMERICA
U.S.NAVY SEAWOLVES - VIETNAM 1969/70
JEFFERSON SPORTSMANS ASSOCIATION
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#23
Pa.Bill;25690 Wrote:That is a wonderful idea and thanks so mush for sharing.

Question: After its installed can you move back is gas?

Can you easy use both---moving back and forth from
propane to gas?

Yes, all I need to do to use gas is open the valve to the gas tank while there isn't any propane hooked up.
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#24
streaker69;25702 Wrote:
Pa.Bill;25690 Wrote:That is a wonderful idea and thanks so mush for sharing.

Question: After its installed can you move back is gas?

Can you easy use both---moving back and forth from
propane to gas?

Yes, all I need to do to use gas is open the valve to the gas tank while there isn't any propane hooked up.

Great ----Thanks again!
INDEPENDENT & FREE THINKER
Pa.Bill, proud to be a member of pa2a.org since Oct 2012.
LIFE/ENDOWMENT MEMBER - NRA
LIFE MEMBER - VIETNAM VETERANS OF AMERICA
U.S.NAVY SEAWOLVES - VIETNAM 1969/70
JEFFERSON SPORTSMANS ASSOCIATION
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#25
FWIW, I was in Costco last evening and they had a 6.2KW Gasoline/Propane dual fuel portable generator for $700

[Image: GP-7500DEB.png]
Smarter Tools - Generators
Model GP-7500DEB
-JD-, proud to be a member of pa2a.org since Sep 2012.
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#26
Maybe that's why my local Costco had 5 skids of 100# bottles in stock this past week. Sad that they're now selling for $139, when I picked up my first one for $86.
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#27
I'm ordering a conversion kit. I fired up the generator yesterday just to give it a work out and the damn carb float is stuck. There wasnt enough gas in it to even register on the gas gauge when I put the generator in storage back in Feb. The generator has .1hrs on it. The only time I fired it up was to test out transfer switch after installing it.

I put some seafoam in it and will try it again in a few days. Hopefully the seafoam cleans it up and I dont have to take anything apart. This ethanol shit sucks.
We should not forget that the spark which ignited the American Revolution was caused by the British attempt to confiscate the firearms of the colonists. - Patrick Henry

[Video: http://www.youtube.com/watch?v=Qh2sWSVRrmo]
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#28
bucksco;109704 Wrote:I'm ordering a conversion kit. I fired up the generator yesterday just to give it a work out and the damn carb float is stuck. There wasnt enough gas in it to even register on the gas gauge when I put the generator in storage back in Feb. The generator has .1hrs on it. The only time I fired it up was to test out transfer switch after installing it.

I put some seafoam in it and will try it again in a few days. Hopefully the seafoam cleans it up and I dont have to take anything apart. This ethanol shit sucks.

If you can get to the bowl of the carb, you can take that off and clean up the gunk stuck down there. I had the same thing happen to mine, took me about an hour to go over it and clean everything up and put it back together. Then it would start after a few pulls. It still starts easier on LP than Gas though.

If you are going to order a kit, take pictures of the carb with and without the air cleaner on, and any labels on it. Email them to the support people at the company I posted about. They can ensure with that you're getting a kit that will work.
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#29
mikey;1727 Wrote:Hey streaker. I was talking to a friend of mine who works as an HVAC guy and he told me that a 20# bottle would not work on a generator, because it would freeze up the regulator from the large volume of fuel that flows. He said I would need a 100# bottle to make it work. Have you used a 20# bottle for a long time period? I would not want to find out in an emergency that the 20's would not work.

That doesn't make sense to me. The volume of fuel is determined by the appetite of the engine, what difference does it make if it's being fed by a 20#, 30#, 100#, or 5# supply tank?
The pressure in any size tank at 70°F is about 127 P.S.I. and at 105°F it's about 210 P.S.I. so pressure variation between small and large tanks isn't an issue. The temperature of the liquid gas is about -44°F but that temp isn't realized until the gas expands.
That's all in the properties of the propane , not the size of the bottle it's in.

Source of info:
http://www.amerigas.com/pdfs/safe_eng.pdf

Is there a property changing dynamic involved?

Someone told me that he worled at a propand distributor and knew of someone who had a tank that was painted black, filled it to 20# and had it in the sun. He used it for a few hours and because of the heat it weighed slightly over 20#.
That statement shot the hell out of his credibility.
That just can't be. It would have had more internal pressure due to the heat but the volume and mass of the liquid wouldn't increase therefore the physical weight couldn't increase. That's like saying hot water weighs more than cold water. If in a pressure tight vessel, it won't happen, if the volume is decreased by usage it's an even more preposterous notion.
It's weight per unit of volumetric measure may change if not at maximum pressure to start with but a set amount captive vessel will weigh the same because it's occupying the same volume regardless of temperature.
I shouldn't have even typed this because someone will misunderstand and give me a ration of shit about it because they would have worded it differently, but a pound of feathers weighs the same as a pound of steel. It's the same principal, a pound is a pound and changing the temperature of it won't increase or decrease the total weight. Removing some of the volume will reduce the weight and that can't be compensated for by changing the temperature.
The volume of fuel being consumed is determined by the consumption of the engine, not the size of the supply tank. Higher volume of flow will cause a greater cooling effect but that flow is a function of the consumption of the engine, not the size of the supply.

ETA: The purity of the propane in regard to moisture content is a factor, higher moisture content will make a batch of propane more prone to freezing a regulator than pure (anhydrous) propane. Is there something about the dynamics of a smaller tank that affects the rate of the moisture separating from the gas?
There are three types of people in the world:
Those who make things happen,
Those who watch things happen,
And those who wonder what happened.
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