Hough carb freezing.

Anonymous-0 · Mar 1, 2010

We have a gas Hough 30B that when run on cold high humidity days, the carb freezes up and loads the engine up with excessive fuel. These industrial engine applications blow air through the radiator backwords, so there is no warm air being pulled toward the engine. Is there a fix to keep these carbs from freezing up?

Andrew Z · Mar 1, 2010

you can rig up a can and pipe from around the muffler and have it go air intake system. This way it will suck warm air in. I am not familiar with the model your talking about but have seen it done on tractors and works well.

Andrew

Bob M · Mar 1, 2010

I've seen what Andrew Z recommends on several tractors around here - it apparently does the job fine.

You might try this also - it works on my Oliver 1600 and 1650 tractors - both of which are quite prone to icing:

Start the engine and get the choke full open as quick as possible. Let the engine run at a fast idle (1,200 RPM or so) with no load for several minutes then shut it off. Wait 5 – 10 minutes for manifold heat to soak down to the carburetor. (If there's wind blowing park the tractor so the carb's on the leeward side). Now restart and put the tractor immediately to work, keeping the engine wound up and as heavily loaded as you can. And don’t let it idle – better to shut it down rather than let it sit and slow idle.

pete 23 · Mar 1, 2010

Andrews idea works very well, all later carbureted auto engines used this type of set up except they had a valve in snorkel to open up when it got warmer out and they used heat from manifold. Don't know if you can get at the muffler to do this on your application or you could go for the manifold area.

pete 23 · Mar 1, 2010

I should have added that Bob's idea is very good also, allowing that carb to soak up some engine heat may be all that is necessary.

Hough carb freezing.

Anonymous-0

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Andrew Z

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Bob M

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pete 23

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pete 23

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