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Old 04-14-2012, 10:22 PM   #1 (permalink)
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22r Propane, bad fuel economy

I just put the GotPropane conversion on my 22r. Went on a snow run today and sucked thru eight gallons way too fast. I figure I ran about 20 miles before I had to turn around and switch to my other tank, and yes I did have my foot in it but come on thats only a little better then 2 mpg !! I adjusted the air/fuel screw all the way lean, truck ran fine but still ate thru the fuel. Has anyone messed with the regulator to slow the fuel down going thru it? Or anything else that might help me out?
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Old 04-14-2012, 10:39 PM   #2 (permalink)
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the amount of fuel pumped into the engine is determined by the vacuum from the engine. i am running into the same thing right now. there arent many adjustments you can make, but give Cary a call and he will be more than happy to help you out. On my old ftoy I could get about 1 day out of a tank. about 6-8 hours of riding depending on how hard we ran it. propane forklifts typically get about 8 hours out of a tank as well as a reference point.
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Old 04-15-2012, 05:03 AM   #3 (permalink)
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How is your tank mounted?

They have a siphon tube that is angled. I've seen guys "run out of propane" because they had the bottle oriented wrong.

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Old 04-15-2012, 12:16 PM   #4 (permalink)
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tank is mounted laying on its side and then I orient the tank so that the guage is up giving me an accurate reading.
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Old 04-15-2012, 12:51 PM   #5 (permalink)
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Call Cary. You have his kit and he has great service.
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Old 04-15-2012, 07:09 PM   #6 (permalink)
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Did you advance your timing?
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Old 04-15-2012, 07:12 PM   #7 (permalink)
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I burn about 1 gallon per hour with my 22r. I currently run the GotPropane kit, but will be switching to EFI in the near future. I love the way the rig runs, but it burns up too much fuel and costs more than gasoline per gallon around here.
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Old 04-16-2012, 07:38 AM   #8 (permalink)
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I can run all day and a night run and still have fuel left in my 8 gallon tank. Not much but around a gallon. How many hours did it take you to go the 20 miles?
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Old 04-16-2012, 07:42 AM   #9 (permalink)
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The 22r is pretty thirsty. I'd get about 8 hours on my tank on trail rides. If I was out of the truck, the truck was off.

On the road I'd get about 110 miles out of the 33.3# forklift tank.

Edit: Also watch them fill it. I got the most out of a tank when they'd fill it until it started pour liquid out the purge. A lot of people filling them are affraid of getting burnt. The gauges on the tanks are not very accurate either.
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Old 04-16-2012, 08:17 AM   #10 (permalink)
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Soap all your connections down and check for leaks. Something is not right. I've run Montrose one day and carnage canyon the next, so two full days of wheeling on one 33lb tank.
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Old 04-16-2012, 08:56 AM   #11 (permalink)
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Set your total timing in the mid to upper 30's. If I was absolutely floored my 22r stroker would suck fuel too, but could trail ride all day long on one tank. Carey has great service, give him a call.
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Old 04-16-2012, 10:02 AM   #12 (permalink)
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Quote:
Originally Posted by nate_ View Post
tank is mounted laying on its side and then I orient the tank so that the guage is up giving me an accurate reading.
regardless of your gauge orientation, the valve should be pointing down.
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Old 04-16-2012, 08:20 PM   #13 (permalink)
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Originally Posted by overeasy View Post
I can run all day and a night run and still have fuel left in my 8 gallon tank. Not much but around a gallon. How many hours did it take you to go the 20 miles?
Took about 4 hours.
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Old 04-16-2012, 08:24 PM   #14 (permalink)
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Originally Posted by slobuild57 View Post
Soap all your connections down and check for leaks. Something is not right. I've run Montrose one day and carnage canyon the next, so two full days of wheeling on one 33lb tank.
I did the soapy water as part of the original install. I turn the tank off when the truck is going to sit for more then a little bit. The system stays pressurized because when the tank gets turned on I don't hear anything leaving the tank, like the first time it was hooked up it ran for a good 10 seconds to fill the lines.
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Old 04-16-2012, 08:28 PM   #15 (permalink)
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Set your total timing in the mid to upper 30's. If I was absolutely floored my 22r stroker would suck fuel too, but could trail ride all day long on one tank. Carey has great service, give him a call.
I will adjust the timing. That hopefully is a huge part of my problem, and yes I know it only take a second to do it, just haven't yet. Figured I'd leave things alone for the first run and just see how it went. I do have my foot to the floor pretty much the whole time but that's snow wheeln', right??!!
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Old 04-16-2012, 08:35 PM   #16 (permalink)
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I haven't opened up the regulator, but was wheeling with a guy who had propane once apon a time, and he said he tightened up the tolerences in the regulator. Something along the lines of making it so the diafram couldn't open as far by adding some washers to ?something?.
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Old 04-16-2012, 10:17 PM   #17 (permalink)
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Quote:
Originally Posted by nate_ View Post
I haven't opened up the regulator, but was wheeling with a guy who had propane once apon a time, and he said he tightened up the tolerences in the regulator. Something along the lines of making it so the diafram couldn't open as far by adding some washers to ?something?.
Don't do that, your problem is elsewhere.
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Old 04-16-2012, 10:30 PM   #18 (permalink)
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Don't do that, your problem is elsewhere.
I'll adjust the timing and see where that gets me.
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Old 04-16-2012, 11:30 PM   #19 (permalink)
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regardless of your gauge orientation, the valve should be pointing down.
i'll bite the bullet and "ass"ume since you didn't quote me that your valve is pointing down?

if your valve is not pointed down everything else is void.

post a pic of your tank setup for clarification
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Old 04-17-2012, 08:04 AM   #20 (permalink)
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Just saw this, timing is absolutely critical. It will create all kinds of issues if not advanced significantly. It needs to be done under load. Advance it a little bit then drive it. Keep doing that as your throttle response and power come up. When you have made an adjustment that made no difference, go back a notch. There is a ton of unburnt fuel slipping out your tailpipe when the timing is retarted.
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Old 04-17-2012, 10:42 AM   #21 (permalink)
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Went on a snow run today and sucked thru eight gallons way too fast.
This is your other issue. The snow eats up the propane. You will do much better in the rocks. I have a 28 gal tank and still have propane after 5 days on the trail. On a good deep snow run I can burn it up in two days.
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