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Leaking 140...???

K

KRS_MED

Member
Well finally got around to doing a little bush hogging after repairing the starter issue and replacing the manifold. I started to notice there was gear oil leaking from the PTO shaft and from some were around the rear axles. Replaced the PTO seal and all is fine. But I can not locate exactly were the leaks are around the rear axles. Is there any common place that they have been know to have leaks in this area?
Also what all would be involved in repairing?
Hadn't used the tractor in several months, but when I parked it all was just fine. Thought that I had taken care of all the problems befor I ever put her to work. I guess you can never have it all done with older equipment.
Thanks,
Keith
 
Keith: How full of gear oil are the transmission-rear end and final drives. Fill to level plug for transmission-rear end is just below front tip of left fender, hidden a bit by brake activation rod. The fill plugs on inside front of each final drive are also the fill to level plugs. Even when seals are good these will leak if those compartments are overfull.

If your concerned about the axle seals, jack each rear wheel, as the jack takes the weight under the final drive, watch for any movement of axle in relation to final drive.

If transmission-rear end and final drives are overfull, transmission could be the culpert overfilling the final drives. If you crawl under rear end, you'll notice two holes one on each side of rear end. those are designed to drain off any oil leaking from transmission-rear end, before it gets to brakes and final drives. If those drains are plugged the leaked oil from transmission-rear end will go to brakes and on to the final drives.

If your tractor sits out in rain much, water running down the gear shift lever, is the culpert overfilling the transmission.
 
Mr. Hugh,
Thanks for the information very much. I guess i am still not sure what is going on. I can't find either of my manuals at this time so I don't have a lot of information. When I started using the 140 to bush hog a rear PTO seal was leaking so I replaced it and re-filled the gear oil at the fill plug on top of shifter plate. Filled it to were I could just see it touch the bottom of the gears. From what I think I get from your post i over filled it by doing that? I have seen the plugs you are talking about on the finall drives, but I was under the impression that the transmission and the drives were all using the same gear oil from were I filled it. So what do i need to do to get all right and back to the way it was meant to be?
Again Thanks so much for the help..! As much as I have read about this tractor I still have a lot to learn...!!!
Thanks,
Keith
 
Keith: To start with, you put about a pint in the PTO-pulley gear box. It has an overflow into the transmission and a gear in the transmission constantly fills PTO-belt pulley to level.

To make it right, get a catch pail remove the transmission-rear end fill to level plug and drain off the excess. Remember it is the small plug, just below front tip of left fender. Brake activation rod hides it quite well. Then remove each plug on final drives and drain off any excess. Then operate the tractor and come back and tell me if you have any leaks. Don't just drive it around the barn, work it a couple says before you come back.
 
Mr. Hugh,
I followed your direction and removed the plugs and drained the excess gear oil. Worked the tractor for a few hours and all is well.
Thanks.
Keith
 
Keith: One thing to remember with most tractors, and especially these offsets. When it comes to lube oils, too much is not better. If you operate the engine with crankcase overfull they will pop crank seals. Those don't stop leaking when you drain oil off. If you operate hydraulics overfull, it will pop a plug on front side of unit in behind front rochshaft. Full with hydraulics is always check levels with rockshafts in rear position.

The transmission-rear end and final drives are a bit more forgiving, they only leak as long as they are overfull. Bear in mind the seals can go bad, however there have been many a guy tore into changing seals when in fact overfull was the problem.

Steering box is a bit different, they leaked from the time tractor was 5 years old. Poor design is the problem. Best cure is install a grease zerk on drain or fill to level plug, pump in 3 tubes of grease, then add about 4 pumps every time you grease front end.
 
Thanks Mr. Hugh you have been a BIG Help to myself and many others on this forum!
While were on the subject what is the correct level for the hydraulic unit? When you refer to the rock-shaft position it should be in the up position or down? I installed the grease Zerk on the steering on your word a year are so ago when I replaced the bearing on the end of the steering shaft. This tractor belonged to my Father-In-law (Father) he gave it to me a few weeks before he died unexpectedly.So I want to keep it in great shape and do any improvements that would help with performance.
Still can't find the service manual or user manual for it.
What would be the best one to get. The one I had (service) didn't have a lot of info for the 140 more on other models. What is the Blue Ribbon manual I have heard of?
TIA,
Keith
 
Keith: Check the hydraulic fluid level with both levers and front rockshafts in the rear position, (down if you prefer to call it that) and tractor not running. Fill to bottom of the filler plug. Before you put the plug back, start the tractor, and at low idle, operate the hydraulics through the full range several times. This will remove any air in the system, plus your certain it's not over full. If much air comes out during that you should shut tractor down and recheck fluid level.

The very best manual for you is the original IH operator's or owner's manual. Depending on tractor and year, it might be called either. Binder Books have the rights from CaseIH to reprint all these old manuals, and do a very good job of it.
 
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