Super A Carb Sweating

Goodman · Aug 10, 2011

Hey Guys,

Question about Carb.....The upper intake on my carburator around the idle screw gets extremly cold, so much so that it sweats and puddles up water on top of the carburator. Even after running 20 minutes both tabs on the manifold where the bolts go through to attach carb will be ice cold.
Have I got a air flow problem, am I pulling in air from around the gasket.....??

Thanks

Bob · Aug 10, 2011

What you are seeing is NORMAL!

Allan from PA · Aug 10, 2011

Physics. As Bob said this is normal. Allan.

Absent Minded Farmer · Aug 10, 2011

Yes, quite normal. The manifold on my 400 will frost up when I first start it. You can "burn" the frost off by starting the tractor, letting it warm up for a few minutes & shutting it off. The intake should warm up enough to dry off the condensation in a minute or two. I don't know if that little bit of water getting sucked by the gasket would make a difference in how your engine runs or not. I'm still learnin', here.

Mike

NawlensGator · Aug 10, 2011

Thermodynamics. Evaporation of the gasoline is cooling the gas (and the carburator)below the dew point temperature of the outside air.

old · Aug 10, 2011

Simple and if it does not do that I would worry about it since it is just how a carb works. The ones in the older cars did the same thing and that is why the pipe from the exhaust manifold to the air intake was put on way back when. In the winter it can cause the carb to ice up but again just how nature and carbs do things. An air compressor does the same sort of thing. When air is compressed it causes heat when air is in turn lit out of the tank it cause the air to cool fast and that is the same sort of effect as the carb an atomizing of the gas

Anonymous-0 · Aug 13, 2011

I have a Farmall B with loader on it. Carb on it wants to ice up bad in winter.I took a piece of stove pipe a little bigger than muffler and slip it over the outside of the muffler with a tube running to the top of air stack. You can push snow all day and the carb stays warm. Come spring I take it off and put air cleaner cap back on.

Super A Carb Sweating

Goodman

Member

Bob

Well-known Member

Allan from PA

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Absent Minded Farmer

Well-known Member

NawlensGator

Member

old

Well-known Member

Anonymous-0

Well-known Member

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