1949 TO20

[Timothy Price]

I just acquired a 1949 harry Ferguson TO20. The question I have is on the transmission case on the bottom their are 2 cotter pins coming down from the inside and the one closest to the seat is dripping hyd. oil. What is the function of the pins and could I put a sealer in the transmission to stop the leak.

 

[Jeff-oh]

The function of the pins is to keep that hole open so if there is in internal oil leak the oil can get out of the case and not fowl the clutch.

Thus, NO do not caulk that hole.

You have an internal oil leak from either a) the engine seal or b)the transmissions seal... or both.

Need to ask the question... is the leak too larrg to live with? If you want to fix you have to split the tractor in hlaf and replace the appropriate seal.

I have split many tractors and that is not a big deal however, I have not dealt with this issue personally and cannt speek to the seal replacement difficulty but gather from previous posts on this topic it is not that hard.

Little confusing on the statement of two cotter pins. Are there 2 holes? There should only be one hole and one cotter pin... Perhaps some one added a second in this tractors life.

Jeff

 

[jjinga]

I have a 1949 TO20. There is 2 cotter pins underside on this model. One under the transmission seal and one near the rear main seal.

 

[Richard L]

All of the TO's (not sure about the TE series) had two holes with cotter pins in them they are approx. 15" between the front one and the rear one. The cotter pins are suppose to be a little on the loose side to jiggle and keep the holes open and not get plugged with chaf etc. Do not tighten the cotter pins and do not plug the holes. Another of Harry's great ideas.

 

[Bob (Aust)]

Only on the TO20, not on the TEA20. I made the mistake many years ago of installing a second split pin under the fly wheel. I seem to recall it fouled the ring gear? I know I had to remove it.

Splitting the tractor is no big job. Most time will be spent undoing old rusty bolts and splitting the tie rod ends at the drop arms. I find it far easier to chock the front wheels and a stand under the engine sump, then roll the diff end back on a floor trolley jack.

 

[Richard L]

I should have mentioned the holes are not in the transmission case but rather in the bell housing area as jjinga mentioned, holes in the transmission case would not be good!!

 

[Jeff-oh]

Well, what do ya know about that.... Hum.

I must say I never looked. My TE has just the one like Bob said. Never got down underneath the TO's to look. So yet another small difference.

Learning something new makes it a good day.

 

[Charles Story]

I have a 55 TO-20, I will check out next time I am in Pine Grove, La.

 

[s19438]

contrary to what some others have said splitting the tractor is a big deal especially if you have never done it and you do not have the right tools and equipment.

keeping the tractor balanced and immoveable is very important as so is doing it on a level surface.

get a manual as i believe it covers splitting the tractor and doing it the right way.

FWIW