2-105 Over/Under

I think I just got in over my head. I've got a leak down the front of the over under housing and figured it was the seal on the input shaft. Now that I have it apart,I believe it's the o ring on that little slotted plug in front of the overdrive support shaft (number 42 in the schematic). I've got the input shaft out. The 64,000 question is,how do I get all those clutch plates lined up to put it back in? Do I have to take it completely apart from the back end and reassemble it that way? I've got kind of a sick feeling right now.

The unit still in-frame? Seems to me I heard a long time ago to have the unit facing up while sitting on a bench but that was for a 1750. Extra work if I turn out to be correct but would save time from going to an AGCO dealer shop.

It's out. I've got all the seals and O-rings waiting for me at the dealership,but I was hoping not to have to take the whole unit in and wait for them to put it together. If that whole unit comes out the back then slides right back in without a lot of little pieces falling out,I'm not so concerned,but when I read the I&T manual,it might as well be written in Hebrew or something. Sounds like I need to be doing a lot of praying anyway. The trouble is,it goes up against a helical gear and needs to be turned on that at the same time it needs to drop straight in to that stack of discs.

Put the unit on its back. Use grease to hold the large o ring on the support. Line up and center all the clutch discs with a screwdriver. Slide the shaft in gently and then twist back and forth quickly with a little jiggling. It should drop right in relatively easy. If you push down on the input shaft and turn it, it should freewheel the one way and turn the output shaft the other. Do this to make sure the shaft is in all the discs and not pushing on the last disc. The support should be all but tight against the case.

Randy, if you really think the leak is the o-ring on #42 the sealing plug, then try this. Take all the cap screws, #13 out of the overdrive housing, and take out #14 and #16. From there, depending on how tight things are, you "can" (maybe) rotate the overdrive housing and then you can gain access to the plug in question. You don't have to worry about anything coming apart with this effort as #4 lock nut keeps the overdrive housing and all the parts locked onto the output shaft. This is the path of least resistance if it is in fact that plug that is leaking. But let me say, I would be really surprised if that's it.

I would propose that you look closely at plug #17A. Looks like a freeze plug. If the leak is down in that area, I'd look at it first.

If you cannot get the overdrive housing to rotate with the above procedure, then you'll need to pry up the stakes on #5 lock washer, and loosen #4 lock nut a little, but not all the way. This of course takes a special tool. I can send you a pic if you need to see what it looks like, but it should be self explanatory when you look at the nut. Doing this will definitely allow you to rotate the housing and get to #42 without taking everything apart.

On the IT manual instructions, I couldn't agree more. If you happen to have a White shop manual for your 2-135, the instructions in it will be wildly better, and although not exactly the same design, the concept is. If you don't have that, let me know and I can post a full set of instructions from one of my manuals, they are much more user friendly.

That's the devil of it,I'm not positive where it's coming from. I figured it was the seal on the input shaft,but now that I see where it is,I have my doubts. The shaft is dry and if that was where the leak was,I think the oil would end up in the bell housing. It's running right down the front of the O/U housing. It almost has to either be that plug or that big seven inch o-ring that goes around that whole front casting. That was a little flat,but didn't look like it should have been leaking.

The only reason I took the darned thing out of there was to fix that leak. I don't want to put it all back together and find out it's still leaking.

How many hours on that machine? Ive' never had that problem yet with mine, I am at around 8000 hours on a 1977 model.

Just turned 5000. It started right after I put a new clutch in it two years ago. I thought I had kinked a line,but when I got under it with a rag and a light,it was running down the front of the housing. First one I've ever had leak like that. I dropped it at the dealer yesterday,he said he'd get right on it and I could pick it up this morning.