Allis Chalmers WD 45 won't run

[farm boy00]

I got a allis Chalmers wd45 with loader and 3-pt. I have the loader off and was using the tractor to plow my garden. Ran for about 5-6hrs with 2short brakes cause my a** was sore. Then hooked the tractor to a 6ft pull behind drag to cross drag my garden so I could level out the rows. About half way through is started running rough. I had finished up running it on half choke. Barely been able to keep it running while just moving it. Cleaned the tank, sediment Bulb, and line into carb. Still won't run trying to move it. Need help asap to finish my garden. Will get pics soon

 

[DJ54]

Did you remove the brass elbow going into the carb., where the fuel line attaches..?? It should have a fine mesh strainer attached internally, that is the last filtration before entering the carb. bowl. A can of spray carb cleaner will flush it out, spraying the mesh part externally, rinsing it out, the inlet. Some low pressure compressed air to finish it.

If there is no mesh filter there, due to someone removing it, or deterioration, I'd suspect some sediment has plugged the main jet, or has plugged the cross drilled holes in the discharge nozzle. You'll need to remove the discharge nozzle, and look for the tiny cross drilled holes near the bottom of the tube. Pluck a single wire form a wire brush, or a single strand of automotive type braided wire to use as a cleaning tool. Flush with carb cleaner, then visually check that the tube, and holes are clean, holding it up to the light.

I'd guess bouncing across plowed ground stirred up the finer sediment in the tank, and has plugged your fuel system.

 

[farm boy00]

Did you remove the brass elbow going into the carb., where the fuel line attaches..?? It should have a fine mesh strainer attached internally, that is the last filtration before entering the carb. bowl. A can of spray carb cleaner will flush it out, spraying the mesh part externally, rinsing it out, the inlet. Some low pressure compressed air to finish it.

If there is no mesh filter there, due to someone removing it, or deterioration, I'd suspect some sediment has plugged the main jet, or has plugged the cross drilled holes in the discharge nozzle. You'll need to remove the discharge nozzle, and look for the tiny cross drilled holes near the bottom of the tube. Pluck a single wire form a wire brush, or a single strand of automotive type braided wire to use as a cleaning tool. Flush with carb cleaner, then visually check that the tube, and holes are clean, holding it up to the light.

I'd guess bouncing across plowed ground stirred up the finer sediment in the tank, and has plugged your fuel system.

Yes pulled everything apart. It was not fun. Even at low speeds

 

[DJ54]

If it was running OK starting out, then you had to run it at half choke to keep it going, there is a fuel restriction somewhere. If you had the bowl off, how much crud was in the bottom..?? Does everything include the discharge nozzle ( brass tube located in the Venturi base of the bowl, running at a approx. 45º angle)..?? If not, guessing that's what's plugged. Check the very small cross drilled holes near the bottom of that tube.

I've even had a speck of sediment get in the main jet. A few times, while in the field, I was lucky enough to back it out a couple of turns, and it would pull it on through.

 

[farm boy00]

If it was running OK starting out, then you had to run it at half choke to keep it going, there is a fuel restriction somewhere. If you had the bowl off, how much crud was in the bottom..?? Does everything include the discharge nozzle ( brass tube located in the Venturi base of the bowl, running at a approx. 45º angle)..?? If not, guessing that's what's plugged. Check the very small cross drilled holes near the bottom of that tube.

I've even had a speck of sediment get in the main jet. A few times, while in the field, I was lucky enough to back it out a couple of turns, and it would pull it on through.

Gas is drained right now so I can tear it apart tomorrow. Going to hang with my girlfriend and family today