Farmall 300 transmission (picture included)

I recently purchased a 300 which was not running, after getting it running I found that it had a ticking noise in the transmission. After taking the top deck off the rear end it appears that one of the gears is chipped on the driving gear for second gear. This gear also runs the idler that drives reverse. The chip is approximately 2/3 to 3/4 of one tooth. I will need to split the tractor to repair. I am probably going to do this however I wanted to get some opinions. Will this chipped tooth cause me problems if I leave it as is? The heavest work the tractor will do will likely pull hay wagons or gravity wagons of ear corn but will also be used for raking hay and other light tasks. This gear is used for reverse and 2nd gear however it always meshes with the idler so you can always hear the ticking (not real loud but you can hear it if you try. I have a picture that I am attaching if I can figure out how.

Thanks,

Ted

Been there done that!!

Ted
You already have the hard work done ( Clearing the deck).
Might as well get her fixed. Its not that hard at all. if its a top gear it will be just cake. Bottom gear is more work but can still do easy.
Once you get the gears out check them out, you may have to replace more than one.
Put a add for gears on this site in the classifieds. You will get all kinds of RE's. Lots of 300/400 rears sitting out there. You will get all kinds of prices from $100 gear on down. I got 5 gears for my 400 for $100 total.
A good book to get would be.
IH Blue Ribbon Service manual. Form GSS-1063, Transmision 300 series.
Call Bonder Books 10:00 AM to 5:00 PM Monday through Friday at 503-684-2024.
Its not really Bonder books. For some reason this site kills certain names that they feel compete with thier sales. Its Binder.

• My Farmall web site w/ 400 trans repair.

If you can get an IT manual it will give you the step by step proceedure. I along with a friend did this 35 years ago and believe me it was the blind leading the blind. We must have been good as 300 is still going and the 560 is now a modified puller turning about 300 hp and still going. Believe me we were both amatures, was the first gear box we ever had apart. Just trying to build your confidence. You have the worst part done, getting top off transmission.

I was kind of thinking on this too.
Could you remove the PTO seasonal disconnect insp plate.
Push the disconnect forward, Then remove the pto shaft bearing cage bolts.
Then some how move the bearing and the shaft forward enough to allow for the removal of the big nut holding the counter shaft in?
I suppose if that could be done you could some how get the counter shaft to move rearward to allow for gear removal.
That would be no fun!!

Better idea if you couldn't actually split the tractor, would be to use 6 x 8 inch grade 8 bolts in place of the bolts that attach the clutch housing to the transmision. Then split the tractor the lenth of the bolts letting them support the units. That would give enough room to remove the pto shaft. Or atleast get enough room to get at the counter shaft. Maybe.....

If you could confirm or condem what I'm saying, it may help jog my memory just a bit on exactly what I removed or didn't remove 35 years ago. I realize the 560 is somewhat different as it does not have a seasonal disconnect. However the hydraulic pump is driven from that lower shaft in the TA section. Over the years, I've stored a lot of information in that computer upstairs, sometimes it just takes the right keyword to recover it. I even did this in my sleep last night. As you may notice, by my posting, it even interupted my sleep.

Same thing happened on 560, but with a hired operator. Of course the 282 diesel didn't give up quite so quickly. there were 4 damaged gears plus a bent shaft. Don't think the initial inpact did all the gears. He lined the shift lever up in rails and kept operating. Operating with the bent shaft did some damage. Shift lever had come out before and he knew how get it working again. Had I known this was happening, I would have built up the shift lever. I am trying to contact my helper on this one.

Thanks for the help