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Minneapolis Moline Tractors Discussion Forum
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New to MMs

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dwm

08-11-2003 19:05:35




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Need a little help. Always liked these tractors. After reading the explanation for all the model designations (24 different U Models in the MM serial listing!), we now have what we think is a 1950 UTS. It's a standard type, wide front fixed tread front axle on LP. The serial plate says simply Model U, and the serial number starts out 012038xx. I assume we drop the front '0'. Are we on the right track so far?

The tractor has been sitting inside for at least 10 years, don't even know how long it's been since it ran. Will do the usual stuff to free up the cylinders.

We're gonna need some help with the LP system as this is new to us. Externally, everything looks fine, though the tank's paint is peeling and shows some rust. Should the tank, regulator, and carb be checked out before fueling? Anything in particular we should look for or be careful of?
Any help appreciated.

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louboy

08-13-2003 10:34:16




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 Re: New to MMs in reply to dwm, 08-11-2003 19:05:35  
If there is no fuel in the tank.Take the fuel line loose at the filter and put a air chuck on the tank side.Use your air compressor and pressure up your tank.Then use a spray bottle with soapy water to check for leaks on all fittings.When your finished,let the pressure off make any repairs then fill with gas.You will have to leave the bleeder open a little longer to get rid of excess air.When i bought my tractor it leaked at the fill valve. Took it off went to local propane dealer and matched it right up

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dwm

08-12-2003 19:38:28




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 Re: New to MMs in reply to dwm, 08-11-2003 19:05:35  
Thanks for the response.

I think we'll keep it original as an LP. From what I've read, they have higher compression, and LP burns cleaner than anything else. We need to learn about it anyway.

My largest concern is the integrity of a 50-plus year old tank and system. If this is usually not a problem, and the tanks are generally okay, then we'll go with the suggestion on replacing the liquid and vapor valves. What exactly do you mean by 'pumping it down'? Can you just open the valves and let the tank bleed completely empty? dwm

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John G

08-13-2003 04:51:32




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 Re: Re: New to MMs in reply to dwm, 08-12-2003 19:38:28  
You can empty it that way, but the usual fuel spill hazards apply and LP is heavier than air and tends to "puddle" in low areas. Mine was about half full and I didn't want to take that chance. The liquid and vapor valves will be okay if they don't leak either in the open or closed position. The pressure relief is the one that is important, if it faces up like both of mine do, there's the possibility they may have had rain in them and be corroded or rusted. Just my 2 cents. Also, consider the possibility of static electricity when venting the fuel to the atmosphere as an ignition source. John

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D.Miller

08-12-2003 08:10:25




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 Re: New to MMs in reply to dwm, 08-11-2003 19:05:35  
dmw,if you are uncomfortable with the L.P.Fuel system it is not that big of a job to change it to gas.These tractors (U Model)are fairly plentiful therefore you can find the fuel tank,sheet metal,and carb ect.,I personaly do not have a problem with L.P. but if you are unfamiliar with it and don't have a fuel supply on hand you may want to make a change.
D.Miller



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John G

08-11-2003 20:14:07




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 Re: New to MMs in reply to dwm, 08-11-2003 19:05:35  
I have a '50 UTS LP and a '47 GTB LP, on both, after I put fuel in them, I had to run them out, "or have them pumped out" so I could replace the vapor and fluid valves on the tank, as they leaked in the open position, and replaced the safety relief valve on both, as that is the MAJOR SAFETY factor on these tractors. I'll help in any way I can with questions as they come up, get an owners manual, it gives the basic instructions on LP use and safety. John

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