Today I pulled the top off the transmission and the gears look really good.
They rotate freely and the engagement gear slides easily between the forward and reverse gears.
On closer inspection I see that the key is broken on the pinion gear and the keyway in the gear is gouged out.
So ... I'm leaving that problem for the moment and will come back to it later.
The shifting lever slides a shaft in and out to change gears and that shaft is frozen up.
There is a threaded plug in the top of boss on the transmission that I assume has a ball and spring that hold the shifter in place.
I learned long ago to go ahead and try to move something before I reach for the hot wrench and in this case it worked.
The plug unscrewed and the spring and ball fell right out.
I clamped the top of the transmission in the vice and used emery cloth to sand the rust off both of the exposed ends of the shaft.
The shaft still wouldn't move so I heated up the housing on each side a little and it soon started moving freely.
The three photos are positions of the shift lever for : forward ...
The transmission had three mounts to fasten it to the frame but one of them has been broken off and that side of the transmission was fastened to the frame by an L-bracket at the front and another L-bracket at the back that was attached to the bolt sticking out of the side of the transmission.
You can see that someone had tried to repair the original mounting bracket using brazing rod but it didn't work.
I'm going to have to come up with a stronger mount for that side of the transmission but I won't worry about that until I'm ready to mount it on the frame. ( as a side note ... I think I may have uncovered some original paint here )
This tractor has absolutely no provision for any sort of braking system.
I picked up this 4 inch drum and band brake set at the tractor show last week and I'm going to use it for a brake on this tractor.
I want to mount it on the drive sprocket but I need to get that sprocket off the transmission in order to be able to fit the drum to it.
The set screw turned freely without having to use any heat.
I tapped the sprocket with a hammer and it seamed pretty solid so I put a puller on it and it started to move without too much effort.
The sprocket and key came off without too much trouble.
Now ... back to the broken key in the pinion gear ....
I took the cover off the left side and removed the bearing.
The shaft would move a little but wouldn't come out.
I took the cover off the other side and there is a thrust bearing on that side.
I can pull the shaft part way out this side and you can see the broken key.
This shaft has a collar on each end that the bearings ride on and the keyway is in-between these two collars.
I have tried using a big brass punch to force the shaft out of these collars and neither one of them will budge at all.
I don't want to use heat on them because that will destroy the temper in them.
I'm stumped ... one of these collars have to come off in order for the shaft to slide out of the gears.
............ Can anyone tell me how to get one of these collars off ? .............
That's enough for today, I turned the transmission upside down to let the oil drain out of it for the night and came inside to post this.