Pictures of 49 cub and solved fuel issue

[wvginseng]

I have figured out what is going on with the stalling going up hill. The throttle lever rod is either disconnected or something is not working. When I work the throttle lever back and forth it is not moving the actual throttle on the carburetor at all. I inspected the rod and it is bent up so maybe that has something to do with it. Here is a few pictures I took.

[wvginseng]

I believe it has a homemade drawbar with the 2 pulleys welded to it.

[John *.?-!.* cub owner]

The drawbar appears to be a Woods unit that has been modified. It originally clamped around the drawbar mounting brackets.

[Criswell]

The throttle lever rod is either disconnected or something is not working. When I work the throttle lever back and forth it is not moving the actual throttle on the carburetor at all. I inspected the rod and it is bent up so maybe that has something to do with it.

When you say that you are working the throttle lever back and forth, is this being done with the engine running or not running? The throttle lever (governor control lever) that is mounted to the steering shaft support is not connected directly to the carburetor, rather it is connected to the governor. From the governor the connection is made to the carburetor and throttle arm. If the engine is not running, you would not see any movement on the throttle arm on the carburetor. The governor controls the carburetor/throttle, the lever on the steering shaft support/column controls the governor.

[staninlowerAL]

Here's a picture of the governor and linkage that connects to the carb. The throttle rod is connected to part #11 and is probably not moving on the shaft part #12 due to rust/dirt/lack of lubrication. Click on the picture to make it larger. More information is available in the service manual at the top of the page. I have found the best approach to free it up WITHOUT BREAKING IT, is to soak it well with some lubricant like KROL, PB Blaster etc. for a few days before trying to move it, then without very much force. It is easily broken. When it moves freely, take it off the shaft, clean it well and use some neversieze before reassembly. Periodic lubrication will be needed but it will last a long time before needing to be done again. It is more easily done with the hood/fuel tank removed. Just take your time and good luck. Stan

[attachment=0]gov [attachment=0]gov parts list.JPG]

[wvginseng]

The reason I figured this to be the problem with fuel is I went to a auction earlier which had a farmall cub like mine and when I moved the the throttle lever back and forth a little it moved the linkage to the carburetor which mine does not. So I figured they should be the same since they look the same. Like I said the linkage is bent up and moving around before it gets to the governor. I checked the linkage going to the carburetor and it moves fine if I move directly.

[Ben B]

Thanks for sharing the photos with us. You've got a lot of farmer fixes on that tractor from the looks of it. If you take the time to fix those things back to the way they're supposed to be, I believe you'll have better service from it. I did with mine.

[staninlowerAL]

The reason I figured this to be the problem with fuel is I went to a auction earlier which had a farmall cub like mine and when I moved the the throttle lever back and forth a little it moved the linkage to the carburetor which mine does not. So I figured they should be the same since they look the same. Like I said the linkage is bent up and moving around before it gets to the governor. I checked the linkage going to the carburetor and it moves fine if I move directly.

Disconnect the throttle control rod at the governor and see if Part #11 will move. If it does not move freely, you will have to find and correct the problem. BTW, there is supposed to be a clip on top of the head that holds the throttle rod in place about halfway between the throttle lever and the governor. The control rod is supposed to be bent in several different places to get the angle of the throttle rod lined up with the governor connection at part #11.

[wvginseng]

I think that clip is also causing a problem because when I moved the throttle lever the rod was moving up out of the clip so I don't know if it is missing something or if it is installed in the wrong way. I removed that clip when I was trying to take out the oil filter so I could prime the oil pump so I may have installed it wrong. I will have to do more inspecting when I get back out there.

[wvginseng]

Went to the farm today to take another look at the farmall cub and like staninlowerAL suggested I inspected part 11 and it seems to be froze up a little. Part 11 does move a little but not very much so I soaked it good with wd 40 and moved it a little to work in the wd 40 then sprayed it again. Hopefully that will help free it up a little.

[staninlowerAL]

... Part 11 does move a little but not very much so I soaked it good with wd 40 and moved it a little to work in the wd 40 then sprayed it again. Hopefully that will help free it up a little.

I'll bet you are on the right track to free up the throttle. Congrats. If you can get some KROL or PB BLASTER it does not evaporate as quickly. Stan

[wvginseng]

Ok I will have to get some. Do you think I will have to take the top off to get it freed up?

[staninlowerAL]

Ok I will have to get some. Do you think I will have to take the top off to get it freed up?

If you are referring to removing the hood, it depends on how lucky you are. If you disconnect the carb linkage on the left side by the radiator and the throttle rod that goes into part #11, you should be able to work with it better. It is a lot easier to do with the hood off, then you can perform the other maintenance that needs to be done like oil the fan shaft, generator, distributor/mag, check and gap the plugs, you get the picture. When you get it freed up if it were me I would remove part #11, clean it all up with sandpaper or wire brush and use some neversieze before reassembly. JMHO opinion.

[wvginseng]

thanks for all the help, I have yet to get out to the tractor to take another look at it.