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Farmall & IHC Tractors Discussion Forum
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140 steering adjustment

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hogsbackfarm

02-16-2005 04:21:43




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Hello, I'm looking at purchasing a 140 for cultivating and the one I'm looking at is in relatively good condition. The only drawback is that the steering is a little sloppy, so that when driving it it takes maybe half to three quarters of a turn to re-engage the steering when changing direction, if that makes sense. I don't have an IH manual but I do have an IT manual that addresses changing the steering worm bushing and seal, but no talk of adjustments. The only other alternatives they show involve removing the entire assembly and axles, which I'm not jumping up and down to do. Anyone know if just changing that bushing would tighten it up, or if a more serious overhaul is needed and any advice if you've done it? Thanks.

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Dave140

02-16-2005 19:56:00




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 Re: 140 steering adjustment in reply to hogsbackfarm, 02-16-2005 04:21:43  
I have a 1960 140 that I cultivate with and the steering is a wee bit sloppy and has been as long as I can remember but all long as she is rolling she steers fairly straight. Maybe i"m just used to it. Dave



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Bryan Meade

02-19-2005 06:40:25




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 Re: 140 steering adjustment in reply to Dave140, 02-16-2005 19:56:00  
i have had the same on 3 super A's (same as a 140) and every one i had to drop the front axle, remove the bottom half of the steering box, and on 2 of them i had to put a new roller bearing and c clip in the top and a bushing and seal in the bottom, the other one the c clip had just broke and the fan gear shaft was able to travel up and down instead of left to right. i also know that if left unfixed long enough it will wear the fan gear shaft from round to oval. that shaft was about 80.00 at my ih dealer. i havnt been able to make any of the 3 hold gear oil since, so i just removed the small plug and put in a grease fitting. the new seals will hold that. its not a fun job, but i made 2 stilts that bold on the sides of the torque tube, they are just long enough to hold the front end high enough to remove. believe me, i felt a lot safer working under the front with no axle on it with these 2 pieces of steel holding it up instead of blocks and a jack.

so to sum it up, ill bet bad bearing or c clip, i would not let it go to long like that or it will cost more to fix. if its bad also replace the bottom bushing while your there, its only a few dollars. and be careful while the axle is off, its dangerous.

thanks
bryan

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Hugh MacKay

02-16-2005 22:23:49




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 Re: 140 steering adjustment in reply to Dave140, 02-16-2005 19:56:00  
Dave: Like you I have worked with these somewhat loose over the years. Only time I've really had a problem is on a hard road in high gear, and they start to shimmy.



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Haas

02-16-2005 09:32:45




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 Re: 140 steering adjustment in reply to hogsbackfarm, 02-16-2005 04:21:43  
There are no adjustments on this steering gear. All you can do is make sure that everything is as tight as you can get it and then you will need to start replacing bearings and bushings. The good news is that new bearings and bushings where needed will usually tighten these up enough to be satisfactory. Rarely is the worm gear or worm wheel worn enough to need that expensive replacement unless you are really particular. After tightening and checking keys as Hugh suggests, next thing is to take the big plug out of front of steering gear and check the ball bearing on the end of the steering wheel/worm gear shaft. Shaft and worm are all one piece and ball bearing is clamped to end with castle nut. Any play in bearing or in clamping system will result in play in steering. You can also check by pulling/pushing on steering wheel. If there is any back and forth play, the bearing on the end of the shaft is likely bad or loose. Inner race must be tight to the worm gear shaft and outer race must be tightly clamped to the steering gear housing by the big hex head plug. Sometimes you have to put a washer under the plug to get it to tighen up, but be sure the washer does not also tighten agains any of the other bearing parts or the bearing inner race.

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Hugh MacKay

02-16-2005 06:24:58




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 Re: 140 steering adjustment in reply to hogsbackfarm, 02-16-2005 04:21:43  
There are woodruff keys on the steering control arm as well as the half cog on same shaft within the steering box. Those woodruff keys will need replacing and the keyways may require some fixing as well. It's not difficult, just time consuming as the front axle must come off then you have to drop bottom of steering box, to get at these.



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scotty

02-16-2005 06:55:40




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 Re: 140 steering adjustment in reply to Hugh MacKay, 02-16-2005 06:24:58  
Hello Hugh, Did all the 140 series have the automotive style tierod ends? That must have been a big improvement from old style tie rod ends!

scotty



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Hugh MacKay

02-16-2005 09:39:53




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 Re: 140 steering adjustment in reply to scotty, 02-16-2005 06:55:40  
scotty: Automotive type started on Super A around 51 or 52, and from there on all had that type 100, 130 and 140 included.



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