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1955 model 70 Propane

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Alan Baldwin

02-14-2001 16:50:22

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Just got my brand new 1955 Model 70 on propane Rolo Matic front end home today what can anyone tell me about them got this on a trade deal and I have never owned a tractor on propane. Any pointers would be helpfull Thanks in advance. Alan

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M.Adams

02-16-2001 17:41:58

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Re: 1955 model 70 Propane in reply to Alan Baldwin, 02-14-2001 16:50:22

Alan, I have a 720 on LP and I love it,wouldn't trade it for anything,well almost anything, check the valves on tank for leaks. Its cheaper to buy LP parts from a good LP man than it is to buy from Deere. Another good thing is LP does not go bad in the tank like gasoline. Have fun and good luck. Mark

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G Taylor

02-14-2001 20:08:21

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Re: 1955 model 70 Propane in reply to Alan Baldwin, 02-14-2001 16:50:22

Check for leaks with a dishsoap & water solution.

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Tom in Mo.

02-14-2001 17:35:54

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Re: 1955 model 70 Propane in reply to Alan Baldwin, 02-14-2001 16:50:22

Hey Alan,

L.P. tractors are good as they have lots of power and run super clean. The Deere service manuals cover the L.P. fuel system completly for service. L.P.'s are great for SLOW races. Note on slow idleing for long periods of time tho; the older flat top pistons didn't like long periods of low R.P.M. as the propane would ignite explosively instead of burning quickly like gasoline. They would fail sooner than an engine run at normal working revs. Deere and Co. went to domed pistons but I don't know when. The domed pistons would redirect the shock of the explosion better than flat tops. Refueling is easy from a 100 LB. bottle turned upside down to feed liquid. Just vent the tractor tank to equalize pressure; when it spews liquid you're full. The converter, carburater, and lines will get a black tar in them and gum things up over long periods of time (20 years). And the tank valves get old too (over 20-30 years). Parts are still available from Deere and from local propane suppliers. Have fun, there's not many around.

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STMTS

02-14-2001 18:02:32

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Re: Re: 1955 model 70 Propane in reply to Tom in Mo., 02-14-2001 17:35:54

I have 5 propane 70's in Sw Okla.and sold several.And stiil quite a few around.

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Shorty Dear

02-14-2001 18:21:31

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Re: Re: Re: 1955 model 70 Propane in reply to STMTS, 02-14-2001 18:02:32

The first thing you need to check is the flywheel. Be sure it is properly adjusted for end play and is tightened to specks. You need to check the flywheel often and be sure and keep it tight. Most 70LP's will start better if you pull the throttle clear to the rear and start the motor turning over and then start giving it some throttle till it starts. I hope this will help you out. Shorty

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Alan Baldwin

02-15-2001 15:59:39

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Re: Re: Re: Re: 1955 model 70 Propane in reply to Shorty Dear, 02-14-2001 18:21:31

Thanks that helps now where do I go to check the oil and the rear end fluids I have looked hi and low and im lost the it manual I bought today tells how much but not where to check. Any help would be appreicated. Thanks Alan

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