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Farmall & IHC Tractors Discussion Forum
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LP Farmalls

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jed

02-13-2004 16:32:09




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I would appreciate any comments or pointers on LP Farmalls, such as the M, 706 and the 806. I am familiar with the gasoline and diesels versions, but know nothing about the LP's. I have a chance to get several at a good price, but I have no idea what I am getting into.




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Mark

02-16-2004 06:27:57




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 Re: LP Farmalls in reply to jed, 02-13-2004 16:32:09  
I don't like them. Somewhere on this site within the last 3-4 days I answered another post concerning LP tractors. Was either tractor talk, JD, Farmall/IH,or Ford discussion Forums. Might be in your best interest to read my true to life comments as I knew nothing about LP engines except the trucks which deliver LP to my house for heating are LP converted.....course these trucks are NEW and they have the gas. No LP tractors are currently on my property.

Mark

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John A

02-13-2004 20:32:23




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 Re: LP Farmalls in reply to jed, 02-13-2004 16:32:09  
jed, First, Basically an LP tractor is a gas engine with a different fuel & delivery system. Like Roger said in his explination on the vaporizor and regulator that is all true. Yes LP can be tempramental in cold weather. But if the Diaphrams are all good then there shouldn't be problem in starting. They do run cleaner and engins will last longer. The LPs most of the time have higher HP than the gas powered sisters.
IHs first Factory built tractors were the SM-LP Stage IIs. Even though many regular Ms were converted @ farm/dealership/LP dealer.
The run of LPs ended on the 856s as a opition. I like many here at YT like the LPs for various reasons So ask away and those of us who know will take a shot at answering it.
Hope this helps,
Later,
John A.

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jed

02-15-2004 14:13:29




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 Re: Re: LP Farmalls in reply to John A, 02-13-2004 20:32:23  
Thank you all. I know by far more than I did earlier. I have found 5 M's , 2 706's and one 806 and they are all reasonibly priced. None of them run, but they appear to be complete. I will probably get them and sell a few to help offset my cost.



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Wayne

02-13-2004 20:05:51




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 Re: LP Farmalls in reply to jed, 02-13-2004 16:32:09  
Jed, I think that these tractors were basically a gasoline engine built to run on the cheaper Lp fuel. You would see these more often in the southern states. They require a vaporizer or regulator to take the liquid propane fuel and turn it into a vapor that could be burned easily. This is helped along by the heated engine water that runs thru the regulator. They seem to run much cleaner than a gas or diesel. My experience is that they are difficult to start and run in very cold temperatures. I like these tractors because of there uniqueness. Send me aline if you are not not interested in all of them.

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Roger

02-13-2004 19:34:19




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 Re: LP Farmalls in reply to jed, 02-13-2004 16:32:09  
I would have LP before any other fuel if possible. I've got 2 LP Case's here, one is Dad's Case 830 from '62, we just overhauled it 2 years ago. Cousin has an 830 identical to Dad's & he used to have an IH 806 LP, I should have bought it when he got rid of it.



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Joe

02-14-2004 17:48:49




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 Re: Re: LP Farmalls in reply to Roger, 02-13-2004 19:34:19  
I have a 1949 Super M and have very few problems getting it started as long as the battery is fully charged. On very cold days I start it on the liquid and switch to the vapor after a few minutes. I've had the tractor about 5 years and finally had to change my spark plugs about 3 weeks ago (and I probably could have just cleaned them). I really like mine, but you do need to respect the fact that it can be dangerous if you are careless around the fumes.

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MT Pockets

02-15-2004 14:09:59




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 Re: Re: Re: LP Farmalls in reply to Joe, 02-14-2004 17:48:49  
Joe, could you have just mispoke on your starting procedure? You have it right backwards. You should start on vapor and when the water starts warming up, then open the liquid valve and close the vapor valve in that order. Steve Norwood



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Joe

02-16-2004 07:49:22




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 Re: Re: Re: Re: LP Farmalls in reply to MT Pockets, 02-15-2004 14:09:59  
No, I didn't misspeak, but I won't guarantee I do it correctly. This is my first tractor and someone told me to do it that way. They said the liquid provides more kick and horsepower. They also said the liquid uses more fuel than the vapor. I am unable to tell much difference in the power portion between the two, but then I don't do anything that neccessitates having major horsepower.

Thanks for the info. and any more you may offer.
I am never to old to learn!

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Wayne

02-16-2004 15:47:58




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 Re: Re: Re: Re: Re: LP Farmalls in reply to Joe, 02-16-2004 07:49:22  
Joe, I agree with MT Pockets, try to start on the vapor and then after the water warms up switch it to liquid. On a cold winter day in Michigan the regulator will freeze up if you do it the otherway around. You will also get more HP from the liquid. I pull a 460 with a 301 engine with a fair amount of headwork and have tried it both ways on the dyno. There's a BIG difference.



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Joe

02-16-2004 17:52:36




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 Re: Re: Re: Re: Re: Re: LP Farmalls in reply to Wayne, 02-16-2004 15:47:58  
You know - after thinking it over - I remember a couple of months ago on a very cold day I was running on liquid and my tractor started cutting out. Then I noticed it was freezing up around the carb and that area. It took a good while for it to thaw and run correctly. That solves that mystery! Thanks gentlemen for educating me.



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