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Massey Harris & Massey Ferguson Tractors Discussion Forum
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intake icing

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graybeard

05-16-2005 10:47:54




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The throat of the intake manifold, as well as the top end of the carb on my 44 ices up pretty badly. I think the distance between the carb and the intake ports on the head are too far apart. During warm weather months I simply shut down for a few minutes and let the heat coming off the motor melt it away. I have given up using it during cold weather because it gets much worse. Is there a solution to this problem? I do not have the sheet metal sides for the hood.

Thanks for taking the time to read this.

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nitro

05-17-2005 12:18:55




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 Re: intake icing in reply to graybeard, 05-16-2005 10:47:54  
Drill and tap a hole on the exhaust manifold and run a small copper tubeing to the intake and carb. Take the copper tube and wind it around the intake and carb a few times and as the exhaust heats up it will act as a heater for the intake and carb. You are to leave the copper tube open ended so there is a little bit of exhaust flow through the tube. And if you get to much flow you can always pinch the end of the tube a little to slow it down. I never tried it but it shure sounds like it would work.

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Graybeard

05-17-2005 10:35:37




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 Re: intake icing in reply to graybeard, 05-16-2005 10:47:54  
Thank you all for the input.



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TomTX

05-17-2005 10:19:56




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 Re: intake icing in reply to graybeard, 05-16-2005 10:47:54  
Also, make sure you have a correct model of an operating thermostat, engine running at full temp will help some. Look in your MF Repair Manual to see how the intake is supposed to be warmed.



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Jerry/MT

05-16-2005 18:36:26




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 Re: intake icing in reply to graybeard, 05-16-2005 10:47:54  
As the previous author said, it's not the ice on the outside that's the problem, its the ice on the internal part of the carb that fouls up the fuel metering. I have a TO-30 and if the weather is very humid and the temperatures are les than 45 F I can have the problem. It's caused by the evaporative cooling effect of the fuel in the airflow through the carb. I just let it run and when the engine and manifold get warm enough the conduction of heat takes care of the problem. Some foks build little "ovens" out of sheet metal, aluminum foil, etc that they put around the carburetor to try to trap some heat. Look in the archives under "Carburetor Icing" and there will be several posts on this problem.

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acmfmh

05-16-2005 12:27:32




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 Re: intake icing in reply to graybeard, 05-16-2005 10:47:54  
This is a common problem on 44's. Mine does the same. Search this sit using a word like "icing" or "carb icing". This subject comes up often. Some of the tips may help.

It was said once that ice on the outside is not a problem. It is a problem when the ice starts to form on the inside of the carb.

Hope this helps.



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