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Farmall & IHC Tractors Discussion Forum
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M Carb Frosting

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Clarkbug

12-28-2006 20:20:52




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Hello again everyone.

See, I warned you I would be asking lots of questions on here, but no tough ones yet.

When running my M first thing in the day, I notice that the carb gets a layer of frost on the outside of it.

Is this an indicator of any problems, or is it simply because the air is cold out? (it has been high 30's here all week) I havent noticed it on any other tractors, but then again I havent been looking...

Thanks in advance,

~Bug

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Jason(ma)

12-29-2006 16:14:16




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 Re: M Carb Frosting in reply to Clarkbug, 12-28-2006 20:20:52  
it's normal, here's how to deal with it. When you see the frost forming shut the machine down for 5 min and let some of the manifold heat get into the air intake side. Start it up and go to work. you should be all set for the rest of the day.



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Clarkbug

12-29-2006 16:41:42




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 Re: M Carb Frosting in reply to Jason(ma), 12-29-2006 16:14:16  
Thanks for the tip!

Its not a problem with anything running funky at all, just a light frost on the outside of the carb once I just start things up.

If it gets to be a problem when I actually try to work the tractor, Ill give your idea a shot.

Thanks again!



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Mark Ollila

12-29-2006 15:41:30




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 Re: M Carb Frosting in reply to Clarkbug, 12-28-2006 20:20:52  
Clarkbug, Look in "Tractor Photos" under Galaries at this site. In Tractor Photos do a search under "1953 Farmall Super H". There you will see a solution to the carburetor icing problem on my Super H. It should work on a Farmall M -- just use larger components. Good luck. Mark



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Wardner

12-29-2006 07:40:58




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 Re: M Carb Frosting in reply to Clarkbug, 12-28-2006 20:20:52  
Ya, it's true. Frostings do have alot of carbohydrtes.



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Clarkbug

12-29-2006 07:55:29




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 Re: M Carb Frosting in reply to Wardner, 12-29-2006 07:40:58  
Mmmm...now I want a cake...



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Wardner

12-29-2006 08:20:44




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 Re: M Carb Frosting in reply to Clarkbug, 12-29-2006 07:55:29  
Well, you can have your cake and eat it too. You should have a nice carbohydrate high. Are you thinking about running a marathon?



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old

12-28-2006 20:39:39




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 Re: M Carb Frosting in reply to Clarkbug, 12-28-2006 20:20:52  
Would you believe its just part of life and is normal. It does that because of the way a carb works and is nothing to worry about. It will even do it whens is 90 degrees out and the weather is wet or humid, just doesn't do it as long as it does in the winter because the manifold warms up fast when its hot out then it does when its cold.

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Clarkbug

12-29-2006 06:12:33




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 Re: M Carb Frosting in reply to old, 12-28-2006 20:39:39  
Thanks for the quick reply guys!

I believe its a normal thing, I just wasnt sure if there was something else at work here or not.

It can stay as frosty as it likes, as long as it keeps running. And if it ever goes airborne on me, I have bigger problems than a frosty carb :)



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RustyFarmall

12-29-2006 07:10:07




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 Re: M Carb Frosting in reply to Clarkbug, 12-29-2006 06:12:33  
Like the others said, it's more or less normal, but it is not always harmless. Sometimes frost will form on the inside also, and that will cause rough idling, reduced power, and could even cause the engine to stall. Reduced power and stalling out is not as critical on a tractor as it would be with an airplane, but can still be quite frustrating. I've seen more than one farmer rigged contraptions that eliminated or at least reduced the problem.

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Tom Windsor

12-28-2006 20:58:21




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 Re: M Carb Frosting in reply to old, 12-28-2006 20:39:39  
As Old says, just a part of life. On my airplane we call it have Carb icing. The engine begins to run rough as the ice builds up and restricts the intake. Can be serious when your feet are not on or near the ground. We are able to throw heat to carb from the manifold to thaw it out and working properly.

and by the way "old" I get to slobbering every time I look at the grader on your web page...I need to tear into one of these bad!!!!!

I have leads on several but nothing concrete yet.

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old

12-28-2006 21:48:25




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 Re: M Carb Frosting in reply to Tom Windsor, 12-28-2006 20:58:21  
Well you wouldn't belive how many times I have used that old grader and how many miles of road I have work on with it over the years, and that was with a weak engine. I now has a very strong engine in it and of course you know what it looks like. I even let other people drive it if they want when they come and see me or for that matter even my other toys.

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