Farmall 140 Front End Steering Box

Sat Aug 03, 2013 4:30 pm

I have restored a few Ford tractors and this is my first IH/Farmall. I got my hands on an Farmall 140 and I am tearing down the steering as it has a 360 degree of play which is insane. The worm shaft looks fine and I sure didn't notice anything too terrible with the bearings. I removed the front axle and am ready to remove the steering arm. The nut on the bottom sure looks like there is a cotter key going through it somewhere. At least the nut is slotted for it. I do not see a cotter key. Does this have a cotter key in it? Secondly, this looks like a nightmare to remove as there is little area to get a wrench on it. Is it me or is this nut easier than it looks? When I remove this nut will there be enough clearance to take the steering arm off the shaft? All I want to do is get the housing removed from the base so I can inspect it.

If you have experience 360 degree play in your steering, what was the problem you found? I am praying it is not the sector which I would guess is costly. I see the rebuild kits are relatively cheap.

Any advise would be greatly appreciated.

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Re: Farmall 140 Front End Steering Box

Sat Aug 03, 2013 5:04 pm

It's been a while since I had one apart but I don't recall anything too bad about it. Once you get the nut off the arm there are 6-8 cap screws that hold the base of the steering gear housing on and that's it. I expect a lot of your play is coming from the arm and/or the sector gear slipping on the shaft.


Re: Farmall 140 Front End Steering Box

Sat Aug 03, 2013 5:12 pm

I have a 140 that I am parting out and it has good tight steering, welcome to the forum

Re: Farmall 140 Front End Steering Box

Sat Aug 03, 2013 5:29 pm

Just rebuilt a 140 front end last month. Yes there should be a cottter key there. The nut can be taken off easy without much trouble.
Mine had a lot of play, which was caused by bad bearings, both of them. replaced them , tightened things up, new seals and now turn the steering wheel and you get action. Just take you time .

Re: Farmall 140 Front End Steering Box

Sat Aug 03, 2013 7:02 pm

Buy the kit, I posted the link on another 140 thread. If the gear is moving on the shaft the keyway is likely worn. Just weld it up, there are thousands of SAs - 140 out there with welded gears in the steering. There is a good chance if you buy a used one it will be welded. By the time you buy a used one and then replace the seals you will have spent more than you would if you repaired what you have, just my opinion.
Boss Hog

Re: Farmall 140 Front End Steering Box

Sun Aug 04, 2013 10:13 am

Thank all of you so much. This is going to be an awesome forum here. I read some of your other posts and they are packed full of information.