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Farmall H flooding/fuel running on ground

G

getitrunning

New User
Hi - I have a 1949 Farmall H, was my grandfathers & fathers until it stopped being used in the mid-80's. I have got it running again, with a number of refurbishments, etc. My problem is that it floods easily and if it doesn't start in the first 10seconds or less, I have fuel running out of the bottom of the carb fairly fast. I'm not sure that's the problem or the symptom, but it doesn't seem like it should be doing that.

Today I had the lower half of the carb off so I could look at the need and float valve. My needle doesn't have a rubber tip like I've seen on some, but it doesn't leak when the tractor is off, or when running, only when failing to start. So I assume that the needle is closing sufficiently or it would leak all the time?

Otherwise, is it pumping too much into the carb when trying to start, or is there another issue? I adjusted the main fuel screw and the idle adjustment screw today to the book's settings (2.5 turns out and 1 turn out, respectively), but that didn't change anything.

Thanks
Michael
 
you may be over choking the engine when you are starting it. my h will start with 1/4 throttle, pull choke out, crank engine over once and push the choke in, it should pop right off. if you crank it with the choke on too much it will flood easily.
 
You are choking it to much/to long. Probly to the point you are flooding it if its not starting. Basicly when full choking, you are shutting the air off, and the engine is sucking liquid gas out of the carb. Thats what is running out the bottom of carb when you quit cranking. It shouldn't take hardly any full choke to get it going. 1/2 or maybe 1 engine revolution and it should be fireing. Once it starts you may have to adjust choke to a partial position untill engine is warmed up. Over choking is your problem, and that extra gas running out bottom of carb is normal when that happens.
 
Choking is an art form rather than a science. Each engine is a little different and you need to "learn what she wants" at startup.

It's better to start cranking with no choke and give it quick "blips" of choke until the engine fires.
 
Thank you everyone. I have experimented for a while to get the right combination of things at startup. I have started it more often lately with a quick pop of the choke out and back in. But it hasn't started well lately (I am getting new plugs today) and I end up doing a bit of cranking in my attempts. It will eventually start dripping that way too ....... but the choke is eventually more and more out as I try so maybe it I didn't do any choking it wouldn't do that.

It also has lower compression on some cylinders, I believe that would cause difficulty starting too? And the plugs get fouled easily because I don't use it for any heavy jobs, usually just as the extra tractor needed to run an auger on PTO.
 
(quoted from post at 11:01:05 11/07/14) Thank you everyone. I have experimented for a while to get the right combination of things at startup. I have started it more often lately with a quick pop of the choke out and back in. But it hasn't started well lately (I am getting new plugs today) and I end up doing a bit of cranking in my attempts. It will eventually start dripping that way too ....... but the choke is eventually more and more out as I try so maybe it I didn't do any choking it wouldn't do that.

It also has lower compression on some cylinders, I believe that would cause difficulty starting too? And the plugs get fouled easily because I don't use it for any heavy jobs, usually just as the extra tractor needed to run an auger on PTO.
Click to expand...

Why don't you post compression, timing, etc. & maybe a pic of your ignition system so we can see what you have.

As stated above the H should start almost when you mash the button.

It sounds like you have issues beyond the carb.
 
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