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Farmall & IHC Tractors Discussion Forum
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'52 Super A steering box gears

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Gav-n-Tn

09-07-2003 19:49:24




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Does anyone out there know where I might find gears for my '52 Super A steering box or a good tight used one at a reasonable price? It differs from earlier models I believe. The picture shown in the I&T manual(which provides just enough info to get you in trouble)is different from what I have.Mine is worn really bad. Although I drove it over nine miles home and I've had it awhile, the steering wear still bothers me.I don't have a spare parts tractor to take from.

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scotty

09-08-2003 07:04:35




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 Re: '52 Super A steering box gears in reply to Gav-n-Tn, 09-07-2003 19:49:24  
Gav, I just finished going through my steering box on my 49 Super A. It dont make me an expert, but here is what I found. I originally thought that I had excessive backlash between my steering worm and worm sector, my first was wrong. After I disconnected my tierods from the steering arm I only had about a 1/8" of movement side to side. I asked Hugh McKay his opinion on that and he felt that was very acceptable. Were I was getting all of my play was the arm that connects to the right spindle, someone had at one time broken the end of the tapered bolt off that goes into the top of that spindle, so even though they put in a new tapered bolt that control arm was loose. To make a long story short, check your backlash, check amount of clearance between sector shaft and the bottom bushing. By the way there is only one bushing, the top of that shaft rides in a ball bearing. Oh yeah, replace both seals and use grease as someone else mentioned. Hope this helps.
scotty

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Al

09-08-2003 06:28:54




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 Re: '52 Super A steering box gears in reply to Gav-n-Tn, 09-07-2003 19:49:24  
Probably what is happening is most of your lost motion is from wear of the woodruff keys on the sector shaft. Check your gear teeth as mentioned, Replace the bearings and bushings, and find a good machine shop to cut new keyways on the gear and shaft. You can get a new gear and shaft from caseIH but they are super EXPENSIVE!!! and if you have the old square-end shaft, you gotta find a center steering pitman arm too.

Oh, and when you're done, pump it full of grease, not 90 wt gear oil. I got brand new bushings, shaft, and seals and it'll still leak a little oil!!

Al

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Hugh MacKay

09-08-2003 02:56:19




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 Re: '52 Super A steering box gears in reply to Gav-n-Tn, 09-07-2003 19:49:24  
Gav: As Slowpoke said try and tighten up what you have with bushings. I'll add to that bearings as well as woodruff keys. I have fixed several of them that way and for the most part makes them very usable. I had one I thought needed new gears until I priced them. The worm and half gear are very expensive, new or used.



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Shaggy

09-08-2003 06:33:59




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 Re: Re: '52 Super A steering box gears in reply to Hugh MacKay, 09-08-2003 02:56:19  
I was wondering where I can get the bushings? From the IH dealer and can I put it in myself?



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scotty

09-08-2003 09:40:44




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 Re: Re: Re: '52 Super A steering box gears in reply to Shaggy, 09-08-2003 06:33:59  
Shaggy, The bottom bushing that you are refering to is not easily replaced. That bushing was swaged into position, hope thats the right term. The outside of the bushing has a helical groove in it so its almost screwed into position. They used the same method on both wheel spindles and the large dia axle tube that pivots on the center pivot pin. I know this because I had to bore one end of the axle tube because of excessive clearance. Which I replaced with a brass bushing I made at work and pressed into position. Hope this helps!

scotty

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Shaggy

09-08-2003 12:00:09




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 Re: Re: Re: Re: '52 Super A steering box gears in reply to scotty, 09-08-2003 09:40:44  
Sounds like I may have to go talk to my machinst buddy.



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Slowpoke

09-08-2003 01:27:53




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 Re: '52 Super A steering box gears in reply to Gav-n-Tn, 09-07-2003 19:49:24  
Disassemble the steering box carefully, noting position of parts. Check for excess play in the bushings and bearings. Most likely the bushings are worn, since they have been in use for 50 years. Steering boxes loose oil and it's never replaced. It may be running dry by now. If the worm on the end of the steering shaft and the worm gear teeth look as good in the center as on the ends, you can usually replace bushings and bring the steering back to service limits. There may be an adjustment screw on the box to take up wear also.

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