Weeping axle seals

rnicholas

Member
The axle seals are weeping/leaking on both sides of my 100. As a part of my winter shop fixes (already posted about the RPM's) I like to fix this. But I have to ask myself; is this worth the trouble? As in, how much trouble is it since it appears that I will have to pull the axle out? I've never done this before. The leak doesn't hurt anything but I get tired of the oil on the shop floor.
 
I did all the seals on my A - same deal as your 100. I took the wheels off and removed one axle at a time. Make sure you have the tractor well secured so it doesn't tip sideways. If I remember correctly there is a seal on both ends of the axle tube (inside one is part of the frame) plus some gaskets. Its a real good time to look at your brakes while you're there since you have to take apart the same stuff to fix them. I think I'm going to do my 100 next year also.
 
Confused are you talking axle as that is where the wheel bolts to or the diff shaft from the tranny to the final. There is quite a bit of difference on repair. Diff shaft has a seal coming out of the tranny and one in the final.Check level of the tranny fluid as it mite be too high causing the seal to leak making left brake useless.
 
specifically, where are the leaks? leak near the transmission, or near the wheels? as recommended, check transmission oil level. water tends to accumulate and cause case to be too full.
 
(quoted from post at 08:36:05 12/18/17) The axle seals are weeping/leaking on both sides of my 100. As a part of my winter shop fixes (already posted about the RPM's) I like to fix this. But I have to ask myself; is this worth the trouble? As in, how much trouble is it since it appears that I will have to pull the axle out? I've never done this before. The leak doesn't hurt anything but I get tired of the oil on the shop floor.
Depends how OCD you are, mine leak about a quart a year. Not worth it to me. Makes me check the fluid every month.
 
I have done my axles on my A's. Sometimes, however, there can be grove in the shaft and the seal does not fit tight and to some degree the leak may continue. I think next time I do one, I may check in putting something over the axle to make up the gap. I forget the name, but I have done that for belt pulley shafts and it works. Probably someone more experienced than I am knows what I am talking about, but it is frustrating to do all the work and the leaks continue.
 
I guess I need to get out the exploded view of the axles and see what I'm getting into. I may just put up with the leaks. But I guess I am confused about one thing. I didn't think the lubrication for the axle came from the transmission. I thought it came from the oil in the bottom of the housing--the pan below the whole axle/tire unit. Yes? No?
 
Yes thats where the final gets lubed so if your leak is at the top of the final that seal is the one that leaks. If the leak comes from the tranny where the diff housing bolts that seal on the tranny is the one leaking and will make left brake not work well because thats where the brake drum is on the left side. ive done a bunch of them.
 
I would only repair them if you are going to paint it and you if don't mind a puddle of oil on the ground under the tractor. When ever I paint a tractor I reseal the entire tractor. If its not leaking real bad, just top it off once in a while.

OTJ
 
yes, that portion is referred to as drop axle or final drive or maybe another name _______. there are 2 axles, within. one short that holds the wheel and another longer that goes into the transmission. uh, there are 2 seals on each one (actually, 3 seals on the long axle) the third one is inside the transmission.
 
So, when the axle is pulled, what holds the large gear in place? It looks to me when the axle is pulled out the gear will drop into the pan or, if the pan is removed, drop out completely. Do I need to anticipate that the gear will drop when the axle is pulled?
 
When the axle is pulled the gear will drop. Best to have the pan off and be prepared for it to drop. Will make it much easier to reinstall and line up the gear. My opinion.
Dennis
 
One thing is that the bearing inside the seal is pressed on to the axle. So you need proper puller or hydraulic press and bearing separator to remove that bearing and press it back on after replacing the seal.
 

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