Farmall M Carburetor Issues

I've been working on getting an old Farmall M which I inherited running again. It's been out in a field for 20 years, so it needs some love.
I decided to overhaul the carburetor since I knew there had been a lot of contamination in the fuel line and since there was a slow leak out of the carburetor drain. I attempted to overhaul the carburetor once, but couldn't get the tractor to fire up after the overhaul. I then brought the carburetor to a guy I know who loves fixing up old tractors. After he overhauled the carburetor, I reinstalled it and turned the fuel back on. After about 30 seconds, fuel started pouring out of the bottom of the carburetor. I attached an image to show the exact location.

I removed the carburetor, ordered new gaskets and a new float seat, and rebuild the carburetor with those parts. I put the carb back on and had the same issue.

The float is still sealed with no fuel inside of it. I can't find any place on this carburetor to adjust the float or the float seat height other than just bending the float. Any suggestions on what I can do to stop fuel from pouring out of my carburetor?

could be a couple things... is the pin that holds the float in correctly? Make sure the float is not rubbing the sides or the
gasket preventing it from shutting off flow. You need to adjust the float height, the little tab that pushes the needle is meant
to be bent to adjust it. Check the archives for the float height specs. There was a youtube video with step by step
instructions.I'm pretty sure those are the only things that will make the gas keep flowing like in your picture. Let us know if
you have any success and good luck.

that is perfectly normal for the carb to leak like that when being choked.
also i can tell that carb has never even been soaked in carb cleaner either, as that is the most important thing before putting new parts in it. after three attempted overhauls...
turn carb upside down to check float level. if its sitting level its good. a slight out of levelness will not make it leak fuel.
with carb installed remove the bowl half and just hold the float up lightly, should be no leakage. make sure float is not heavy... as a hole in the float.

(quoted from post at 10:10:57 11/26/16) could be a couple things... is the pin that holds the float in correctly? Make sure the float is not rubbing the sides or the
gasket preventing it from shutting off flow. You need to adjust the float height, the little tab that pushes the needle is meant
to be bent to adjust it. Check the archives for the float height specs. There was a youtube video with step by step
instructions.I'm pretty sure those are the only things that will make the gas keep flowing like in your picture. Let us know if
you have any success and good luck.

Click to expand...

It turns out that the float was rubbing on a side. I bent it back into position and rechecked the height. I guess I was just too hesitant to bend the float before. After reassembling, the float could be heard moving when the carb was tilted back and forth. I put it on and it stopped the gas from pouring out. It still has a drip every 10 seconds or so, but I can live with that.

(quoted from post at 11:33:34 11/26/16)

(quoted from post at 10:10:57 11/26/16) could be a couple things... is the pin that holds the float in correctly? Make sure the float is not rubbing the sides or the
gasket preventing it from shutting off flow. You need to adjust the float height, the little tab that pushes the needle is meant
to be bent to adjust it. Check the archives for the float height specs. There was a youtube video with step by step
instructions.I'm pretty sure those are the only things that will make the gas keep flowing like in your picture. Let us know if
you have any success and good luck.

Click to expand...

It turns out that the float was rubbing on a side. I bent it back into position and rechecked the height. I guess I was just too hesitant to bend the float before. After reassembling, the float could be heard moving when the carb was tilted back and forth. I put it on and it stopped the gas from pouring out. It still has a drip every 10 seconds or so, but I can live with that.

Click to expand...

Bending the float arm is the only way to adjust the height. Usually even a brand new float will need adjusting, and you can count on needing to adjust the float height on nearly every carburetor that is opened up for repairs.

I am glad you fixed it and appreciate the update.

I've found on H's and M's I have to set the float about 1/8" lower than the book says, otherwise I have problems with gas running over.