Ford Jubilee carb problems

JClarke

New User
Firstly, I want to thank the people that helped me with the timing and ignition issues on my son’s Ford Jubilee. I believe we have everything timed properly and we were actually able to get the Jubilee to run. One of the obstacles we had to do was to rebuild the carb. However, that is where I think we have a problem. Tractor will start and idle at the right speed, but it will only run on half choke, not full choke or no choke. As soon as we try and give it more throttle or put on any kind of a load on it, it wants to stall. As I was rebuilding the carb, I noticed that the venturi was loose in the new gasket that was provided. With the old gasket, it was quite tight. Is this creating some kind of break in the vacuum? We have good fuel to the carb as it drains from the bottom as it should . Adjusted the main adjustment needle to one and a quarter turns from stop and the idle needle one turn. Any help or expertise would be much appreciated. Thanks.
 
Firstly, I want to thank the people that helped me with the timing and ignition issues on my son’s Ford Jubilee. I believe we have everything timed properly and we were actually able to get the Jubilee to run. One of the obstacles we had to do was to rebuild the carb. However, that is where I think we have a problem. Tractor will start and idle at the right speed, but it will only run on half choke, not full choke or no choke. As soon as we try and give it more throttle or put on any kind of a load on it, it wants to stall. As I was rebuilding the carb, I noticed that the venturi was loose in the new gasket that was provided. With the old gasket, it was quite tight. Is this creating some kind of break in the vacuum? We have good fuel to the carb as it drains from the bottom as it should . Adjusted the main adjustment needle to one and a quarter turns from stop and the idle needle one turn. Any help or expertise would be much appreciated. Thanks.
Do you have it right side up?? When the 2 halves are put together that is what holds it tight not the gasket
 
Firstly, I want to thank the people that helped me with the timing and ignition issues on my son’s Ford Jubilee. I believe we have everything timed properly and we were actually able to get the Jubilee to run. One of the obstacles we had to do was to rebuild the carb. However, that is where I think we have a problem. Tractor will start and idle at the right speed, but it will only run on half choke, not full choke or no choke. As soon as we try and give it more throttle or put on any kind of a load on it, it wants to stall. As I was rebuilding the carb, I noticed that the venturi was loose in the new gasket that was provided. With the old gasket, it was quite tight. Is this creating some kind of break in the vacuum? We have good fuel to the carb as it drains from the bottom as it should . Adjusted the main adjustment needle to one and a quarter turns from stop and the idle needle one turn. Any help or expertise would be much appreciated. Thanks.
I had problems when I took the carb apart on my Farmall C finding the right gasket to put it back together or the rebuild kits were expensive.
I bought a cheap aftermarket carb from Amazon. Exact clone. Worked fine after adjustments. Best part if it doesn't work FREE return shipping. So what do you have to lose?
Here is a cheap aftermarket clone for
ALL-CARB EAE9510C Tractor Carburetor Replacement for Jubilee NAA NAB 600 700 TSX428 Series with 134 CID Gas Engines $32
71IqjcyFjKL._AC_SL1500_.jpg
 
Firstly, I want to thank the people that helped me with the timing and ignition issues on my son’s Ford Jubilee. I believe we have everything timed properly and we were actually able to get the Jubilee to run. One of the obstacles we had to do was to rebuild the carb. However, that is where I think we have a problem. Tractor will start and idle at the right speed, but it will only run on half choke, not full choke or no choke. As soon as we try and give it more throttle or put on any kind of a load on it, it wants to stall. As I was rebuilding the carb, I noticed that the venturi was loose in the new gasket that was provided. With the old gasket, it was quite tight. Is this creating some kind of break in the vacuum? We have good fuel to the carb as it drains from the bottom as it should . Adjusted the main adjustment needle to one and a quarter turns from stop and the idle needle one turn. Any help or expertise would be much appreciated. Thanks.
For how long does it drain from the bottom? what is the gas level in the float bowl?
 
For how long does it drain from the bottom? what is the gas level in the float bowl?
Hmmm. I never really tracked it or measured. If the gas was coming to the carb and I opened the drain, would it not continuously drain the tank?
 
Hmmm. I never really tracked it or measured. If the gas was coming to the carb and I opened the drain, would it not continuously drain the tank?
The thing is the carb bowl is filled to the level controlled by the float. When you first remove the carb drain plug that fuel drains out. At that point you find out what the actual flow is that is getting in your carb to run the engine. When tested new under a full load your tractor used right under 3 gallon an hour. This is a pint in 2 1/2 minutes. You need to test the flow out of the drain plug on the carb. Have the container ready and a timer. Open the plug but don’t catch the initial flow let it drain for 5 seconds or so then start catching it and start the timer. The 5 second delay lets the reserve in the carb bowl drain off that can’t be included in the measure.
 
No one has mentioned this: OP stated adjusted to 1 & 1/2 turns (book setting) no further adjustment mentioned. I would open load adjustment another 1/2 turn and see what happened if no change it needs further cleaning or float level to low.
 
Hmmm. I never really tracked it or measured. If the gas was coming to the carb and I opened the drain, would it not continuously drain the tank?
Yes, it would. However, if at some point the flow were restricted so that it took ten hours for it to drain the tank, and you were trying to run it on that little flow, you would have have your choke half closed and if you tried to put a load on it it would die.
 

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