3rd time AINT a charm with 50 Cub

Farmallb

Well-known Member
Broke it 3 times. Replaced the throw out bearing first time. Tried to find why it wouldn't work right the second. Reversed the clutch plate so the center extended hub faced the back as per Messicks the third. Supposed to have a mechanic call me tomorrow.
 
hmmmmmmm Doncha think after opening it 3 times, IF I KNEW THE PROBLEM, ida fixed it by now lol
 
Did you get a clutch adjustment manual or a I&T manual or an IH service manual? I"d go there, try everything, and read up on it. It may not be possible for someone here to type in everything yu have to know.
 
I just checked my I&T manual, and for the Cub there's a half a page of text and three or four pictures just for clutch adjustment. I know I would not be able to type it all in without about 5 or 6 mistakes.
 
1. You stated the throw out bearing didn't have a grease zerk. That's not right, so it could be that the whole TO bearing in wrong, unless you replaced it with the right one, which you didn't say if you did.

2. You had the disc in backwards? You probably busted the center hub of the disc. I know many people who have done that and every time it results on a busted hub.

3. Did you adjust the fingers properly?
 
(quoted from post at 22:55:58 10/09/13) hmmmmmmm Doncha think after opening it 3 times, IF I KNEW THE PROBLEM, ida fixed it by now lol
was asking what kind of problems you were having, sorry if it sounded wrong. clutch not releasing, gears grinding, clutch making noise when depressed or vibrating, clutch slipping, etc.
 
I have a CUB that came to my repair shop with a lot of small parts in a box. The transmission and final drives were on one pallet and the engine was on another pallet, but assembled. When I started to assembled I decided to hang the engine on the torque tube without the flywheel and clutch in place to check the pilot bushing in the back of the cranshaft. I then reached through the starter hole and I'm able to move the transmission shaft up and down a bunch in the pilot bushing. I have ordered a new bushing and tomorrow I will split the CUB and install the new bushing and then the clutch.

I'm not sure what your clutch problem is but I would check out this bushing next time you have her apart.
 
Which bushing are you talking about. Where is it located? I got a new throw out bearing. The shaft flops through the center of it.
 
The bushing is located in the center of the crankshaft where the flywheel bolts on. The driveshaft that goes from the transmission to the clutch. The front end of this shaft sticks into this bushing. The job of the bushing is to hold the shaft centered in the clutch. Bigger tractors have a ball bearing usually located in the center of the flywheel. Commonly called pilot bearing. I have seen these bushing in the smaller tractors like the CUBs, A, B, C, & I'm sure this bushing is used in the 100, 200 series of tractors as well. I hope this helps.
 
that era of Cub should have a carbon slipper style throw out bearing (unless it has been updated) The pilot bushing is in the center of the crankshaft, it can wear or get dry and cause the shaft to keep turning.
Clutch hub faces to the rear, if memory serves me right, also roll the shaft with your fingers and check for straightness. The three dimples on the pressure plate must go into the holes in the flywheel as well.
 
(quoted from post at 19:05:01 10/10/13) Which bushing are you talking about. Where is it located? I got a new throw out bearing. The shaft flops through the center of it.

The throw out bearing does not support the shaft. It's supposed to be a loose fit because the bearing moves on a slight arc. If it wasn't loose it would bind on the shaft.

All the throwout bearing does is push against the three fingers on the clutch plate.

There's a little brass bushing in the center hole of the flywheel that the machined end of the shaft pokes into when you stab the tractor back together. That is what supports the shaft.
 

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