Farmall 140 help

Farmall4life · Mar 27, 2013

I have a 1972 Farmall 140. It will start up fine and idles fine but when I try to give it some throttle, it chokes off. I have rebuilt the carburetor, cleaned out the sediment bowl, and tried without the air filter on to make sure it's getting air. Nothing I do seems to help. Any ideas would be greatly appreciated as I really need this tractor running and breaking ground.

D7fever · Mar 27, 2013

check your point adjustment

Farmall4life · Mar 27, 2013

(quoted from post at 18:34:50 03/27/13) check your point adjustment

Done that too.

TheDurk · Mar 27, 2013

Verify distributor advance is working. Take a look at the springs and counterweights and if things look gunked up take them out and clean them. If there is a broken spring, replace it.

gbs · Mar 27, 2013

i replaced 2 valve push rods and tuned one up for a man and time he gets home he calls with the same problem,i removed the plug in the carb. bowl and caught some gas in my hand and found fine almost clear sand particles that were blocking the main jet,come to find out his young grandson had added a handful of fine sand from under the shelter to the tank,try choking it a little and see if it will speed up,i may be wrong but it sounds like something is stopping the gas from going through the main jet,sometimes though rare it can also be caused by a ventura in wrong or cracked

erik dekeyser · Mar 27, 2013

Did you try to disconect the fuel line at the caburator to see if you have a good flow of fuel. You might have cleaned the bowl out but at the top of the bowl the part that goes into the tank there isnt a nice opening it has a little peice of steel up there that stops bigger peices of dirt and rust from getting into the bowl. So if there is some rust in the tank it will slow down the fuel going into the bowl. Also there is a filter in the fuel line at the carb right in the elbo. I hope this helps you.. Erik.

ken house · Mar 27, 2013

i own a c. pretty typical if it sets over winter, the fuel does not get to carb. have to clean the line, several times, before it will run for a while.

IHSMOKE · Mar 27, 2013

do you have the float set way to low and cutting the fuel off with out enough fuel in the carb. bowl to speed up /// think of it as running out of gas cause there is not enough in the bowl to allow for a faster engine speed .. faster engine speed draws the gas out of the fuel bowl faster then it flows back in cause the float cuts it off early ..problem is that ya set the float lower to stop flooding and then u starve the engine for fuel ....CLEAR AS MUD RIGHT ?? IHSMOKE

longear · Mar 28, 2013

I have the same problem with my 140 after it sits over winter. I have found it to be water in the fuel from condensation.

Farmboy856 · Mar 28, 2013

If I were you I would completely drain the gas from the tank, fuel line, and carb, then add new, fresh gas. I had a Super A that sat all winter and did the same thing, and a Case VAC too. Once I did this, they both ran like new ones.

This new gas will not hold over a winter in a tractor--- one mechanic told me it starts breaking down within two weeks after it comes off the truck. Just my 2 cents worth.

Farmall 140 help

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D7fever

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