running carb dry

Rkh · Dec 18, 2012

any advantages to shutting off gas supply and letting tractor stall? my concern would be carb sucking sediments from gas see thru sediment bowl.

oldtanker · Dec 18, 2012

I do that every time on my gas tractors. Never had a problem.

Rick

Tom in TN · Dec 18, 2012

Rkh,

I have a 1973 Ford 2000, 3 cylinder gas tractor. I use it virtually every day, but I shut off the gas and let it run for about 15 seconds each time I turn it off for the day.

My thought is that I want the needle valve to open a little bit while the engine is stopped.

At the same time, if the needle valve had been stuck open when I stopped the tractor, I don't want the gas to flood out of the carburetor.

Probably just superstition, but it's what I do.

Tom in TN

rusty6 · Dec 18, 2012

I always shut off the gas on my gas tractors but after a few days the valve at the tank leaks enough that it refills the carburetor anyway. No worries on sediment. The bowl and screen at the tank should stop everything.

Jiles · Dec 18, 2012

I do this with all gas engines that will not be run in a month or so. I used a chainsaw last week that hadn't been run on THREE YEARS---cranked and ran as it should!
I have had many people tell me that the "gaskets would dry out" LOL---I guess that's why all new gasket sets are soaked in some solution and sealed to prevent drying out ? LOL
Just my opinion and I don't argue the subject!

old · Dec 18, 2012

A carb only sucks air not gas so no problem and as a matter of fact now days it is a good idea to have the carb dry due the the fact this crap gas has alcohol in it which pulls water out of the air and then evaporates and leave the water behind so you end up with water in your carb and that is bad

Bob M · Dec 18, 2012

For 30+ years I've been running the carbs dry ALWAYS. Never had a lick of trouble. And the engines seem to start faster/easier than if fuel is left in the bowl.

No worries of "sucking sediment" from the sediment bowl. Rather it collects/holds any sediment so it WON'T get into the carb.

JF in MI · Dec 18, 2012

I also have been doing that with everything but my chainsaws for around 30 years. Used to have gummed up carbs before that and never since.

Greenday · Dec 18, 2012

if your sediment bowl is set up correctly the sediment will not leave the bowl

Will Herring · Dec 18, 2012

I have started to do this more lately. Occasionally you have to clean the sediment bowl screen (more often than before), but other than that I've had no issues.

Bus Driver · Dec 18, 2012

The early 2 cylinder John Deere tractors had no magneto kill switch, so turning off the fuel was the preferred way to stop the engine. It took several seconds to empty the carburetor bowl. With dual-fuel, that prepared the tractor for the next cranking cycle on gasoline. Cranking a cold engine on kerosene is impossible.
Occasionally, if it was still quite hot, both weather and engine, it would crank on kerosene if rolled down a steep hill for speed. Big smoke if it fired up!

JohnDeereJimOhio · Dec 18, 2012

We do that will all our gas tractors... Wouldn't recommend in a diesel that would get old lol...

37chief · Dec 18, 2012

I tried that a time or two. Every time I did it the motor died a slow death. Just about the time I thought it would quit it got a shot of fuel again, and made horrible sounds. It is a big motor with 4 in pistons, maybe that's why? Now I just use the kill switch. Stan

Rkh · Dec 21, 2012

talked to my mechanic & he said that the needle valve seal would dry out & doesn"t recommend it.

running carb dry

Rkh

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oldtanker

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Tom in TN

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rusty6

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Jiles

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old

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Bob M

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JF in MI

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Greenday

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Will Herring

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Bus Driver

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JohnDeereJimOhio

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37chief

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Rkh

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