transmission

[okiecub51]

Howdy everybody, I am fixing to install a new transmission input shaft in my '51 FCUB "Harry". I have all the parts ready to go and i have a few questions,
1. should I put some grease in the pto shaft pilot bushing?
2.should i grease the new front and rear input shaft bearings?
3.on the front bearing witch way does the open side of the bearing face?
4.how do i remove and install the old rear roller bearing on the input shaft?
Thats all I can think of for now, I'm sure I will have more questions as I go! Thanks.......okie

[RaymondDurban]

Howdy everybody, I am fixing to install a new transmission input shaft in my '51 FCUB "Harry". I have all the parts ready to go and i have a few questions,
1. should I put some grease in the pto shaft pilot bushing?
2.should i grease the new front and rear input shaft bearings?
3.on the front bearing witch way does the open side of the bearing face?
4.how do i remove and install the old rear roller bearing on the input shaft?
Thats all I can think of for now, I'm sure I will have more questions as I go! Thanks.......okie

1) Sure
2) I wouldn't. I do try to "pre-oil" them with gear oil.
3) Open side faces the front.
4) The rear bearing will stay in the case. I will not (at least should not) come out with the shaft.

[Hengy]

OK... someone will correct me if I am wrong, but here goes::

Howdy everybody, I am fixing to install a new transmission input shaft in my '51 FCUB "Harry". I have all the parts ready to go and i have a few questions,

1. should I put some grease in the pto shaft pilot bushing?

Yes, you should grease the Pilot shaft bushing. Just a dab will do you.

2.should i grease the new front and rear input shaft bearings?

gear oil will help until the tranny can sling oil up on them when you start it up and drive it. The top bearings don't get oil unless the tractor is moving and oil goes into the little troughs and down the weep holes in the castings over the bearings.

3.on the front bearing witch way does the open side of the bearing face?

Open side goes toward the seal in the front. It is lubricated by oil falling in between the bearing and the seal and forming a little pool in front of the bearing. The shield helps keep the oil there.

4.how do i remove and install the old rear roller bearing on the input shaft?

Is it on the shaft or in the transmission? The front bearing has a snap ring retainer on the front side that holds it in place. Snap ring off, drive the bearing toward the front. Rear bearing is in the transmission case and should be able to be driven out with a punch and a hammer.

One thing to add... Put a dab of grease on the main shaft front end (the part that goes in the bushing in the flywheel) before reassembling to the tractor. That part gets overlooked!

Mike


Edit to add: Raymond was Way faster than me because he is a man of few words! I gotta do better about self-editing!

[okiecub51]

Thanks for responding guys, the rear bearing that's in the tranny case, some of the rollers fell out of it when I removed the input shaft, Its still in there. What should I use to punch it out? I'm afraid I'm going to get those little rollers all in the tranny case. It still has all the gears in it.

[okiecub51]

Yep, I'm gonna have to get a magnet, I just knocked some of those little rollers into the tranny case

[RaymondDurban]

You'll have to remove the rear transmission cover and drive the whats left of the bearing forward. A brass punch is all you need. A bearing/seal driver will be needed to install the new one.

[okiecub51]

Drive the old one out from the PTO shaft side? Am I going to have to remove all the tranny gears to install the new one into the tranny case? Thanks guys for all the help!

[okiecub51]

If I could figure out how to resize photos with my phone, I would post some pics. I'm sure its easy to do!

[RaymondDurban]

Once the case is drained of oil and the old bearing is driven out from the PTO side to the front, the new bearing is drove in from the rear. Removal of the gears will not be not be necessary (other than the top shaft of course). A magnet on a stick should be run through the case to pick up any wayward rollers from the old bearing.

[okiecub51]

Ok I'm gonna try it tomorrow, thanks guys!

[okiecub51]

Thanks everyone for all the help with my tranny. I couldn't sleep last night so I done some reading on here, and got some courage built up and just got in there and started working. Next thing I know its 6:00 am and the new input shaft is in and the tranny is all back together! I have never ever worked on a transmission in my life, I couldn't have done it without everyone's help, so

[RaymondDurban]

Glad to hear you got it done!

[okiecub51]

One thing I just thought of, I forgot to put grease in the new PTO pilot bushing!

[Scrivet]

One thing I just thought of, I forgot to put grease in the new PTO pilot bushing!

Yep, did that also. Lasted about five or six years and had to put a new bushing in. Made sure I greased it. Really a flip of the coin. It isn't going to disentigrate immediately if you don't grease it and it will eventually get oil splashed onto and into it. The other side of the coin is it's not that big a job to take a couple bolts loose and pull the PTO shaft out and grease it. As long as you're good at getting the lever to engage won't take long at all.