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Farmall & IHC Tractors Discussion Forum
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A Question On Propane Tractor Plumbing

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W. Drew SMTA

08-12-2005 19:07:23




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Can anyone tell me why there are water lines plumbed into the ensign regulator on SMTA's as well as 400's & 450's?? Is it to keep the regulator from freezing up?? I fully understand Gas & Diesel theories, but this has got me curious. Will it run without water to the regulator?? Will it toss me off the seat like a rookie on a bull named FU MAN CHU?? Will it continue to leave me not knowing?? Please help me..... Drew

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Allan in NE

08-13-2005 05:19:11




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 Re: A Question On Propane Tractor Plumbing in reply to W. Drew SMTA, 08-12-2005 19:07:23  
Drew,

Can’t speak to Farmall in particular, but have ran a lot of propane powered stuff in years gone by.

The lines don't run to the regulator do they?

The hot water should be running to the evaporator, which insures that any liquid is changed over to a gaseous state before entering the combustion chamber.

I've run 'em at -40° and they don't freeze up, but will have a bit of lack of power under heavy loads because the propane doesn't get from the tank to that evaporator fast enough to meet the demand.

Allan

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jossette

08-12-2005 19:37:51




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 Re: A Question On Propane Tractor Plumbing in reply to W. Drew SMTA, 08-12-2005 19:07:23  
you are right so far.

propane will gell up a carb. So if you heat the propane it will expand and send less fuel to the carb and keeping it from freezing. Its bad enough with gas in the winter when you have a 1/4" inch of frost on the carb.. imagine colder propane under pressure..



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