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Massey Harris & Massey Ferguson Tractors Discussion Forum
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44 Special, cold-weather operation

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Don

11-09-2003 11:41:47




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Has anyone dealt with the problem of intake manifold/carb icing in cold/damp weather? Alcohol in gas helps a little along with wrapping the manifold/carb with insulation. Any tips other than keeping tractor/fuel warm? Tractor runs fine in warm, dry weather.




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marlowe

11-09-2003 12:45:54




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 Re: 44 Special, cold-weather operation in reply to Don, 11-09-2003 11:41:47  
all the 260 and 277 do this when it's cold and damp out but it will clear up after the tractor gets hotter.looks worse then it is



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BONE

11-10-2003 00:28:24




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 Re: Re: 44 Special, cold-weather operation in reply to marlowe, 11-09-2003 12:45:54  
i used my mh 44 4 cylinder last year in tempature around 12F degrees, plowing snow off the driveway.. seems to be working just fine.. just start it up and let it run for awhile before you start driving, its hard to shift the gears..thats pretty much it.

sbone



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Allan C

11-11-2003 19:23:53




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 Re: Re: Re: 44 Special, cold-weather operation in reply to BONE, 11-10-2003 00:28:24  
This is part of the reason hot manifolds were invented. It's mainly a problem when outside temps are just above freezing to say 50 F. At lower temperatures like the man says, 12 - no problem.



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Don

11-12-2003 17:52:43




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 Re: Re: Re: Re: 44 Special, cold-weather operation in reply to Allan C, 11-11-2003 19:23:53  
Does anyone know of a device, preferably for sale at a parts store, that can be used to warm the fuel before it gets sucked thru the carb? I'm guessing that warmed fuel would take care of the icing problem which causes the rough running and loss of power. Would like to use the tractor more in colder weather but can't the way it's running now. Something like a diesel fuel line heater on semi's. Did old Massey diesels have anything like that? Thanks

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Allan C

11-13-2003 18:56:10




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 Re: Re: Re: Re: Re: 44 Special, cold-weather opera in reply to Don, 11-12-2003 17:52:43  
No dice. It's the air you have to warm. You may be able to monkey-rig a jacket over the exhaust and have it suck air there. There are probably hot manifolds available too if you want to spend the money. Icing is caused by the refridgeration effect of the air expanding after it passes through the carb venturi. (expanding gases require heat). If the air is damp and the temp is in the right range it will do this. Having the fuel hot may help slightly but the volume of fuel is so small compared to the air volume that I can't see that working. That's why carburettored car engines have heat riser valves and intakes that suck over the exhaust manifold.

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