Super A - 140 Steering Bushing Kit PROBLEMS

RTR

Well-known Member
I have bought several kits off of eBay from the tractor parts suppliers that typically sell good aftermarket parts. I bought these kits after they were recommended by a fellow tractor enthusiast that has used several kits with no problem and great results. Well I have used 1 kit on a Farmall 140 and had trouble with the bushing fitting into the steering housing. We cut a slit in the bushing, and installed it into the housing. Then the steering gear shaft wouldn't fit into the bushing. Ended up taking it out, and reusing the old bushing that was in there since we had filed on the other one too much to the point it wasn't true anymore. It just wasn't machined to the right size!

Well.........I ended up letting an older gentleman have one of the rebuild kits a coulple weeks ago so he could fix the steering on his Farmall Super A tractor. He called yesterday and said he had a local machinist look at it and tell him the bushing was 1/8 inch too big and would not fit. He miked it and saw that. Not sure which bushing he was talking about but I presume it is the same case as I had with the 140. I told him to see if the machinist would machine it down but the guy was concerned that since the bushing is so thin, that it might not work well or last very long.


QUESTION: Has anyone else ran into this problem? I thought the kits would work with all tractors (Super A - 140) and if the parts were different, you would think they would be different between the Super A & the 140; but now both models have been tried. The guy that recommended the kits said he has never had any problems. I have ordered the kits from another supplier, but they are the same (come in same packaging and look identical). All of the other parts work well: bearings, seals, gaskets.

What would be the solution? Does anyone know the exact measurments of the bushings of if there was a change??
 
The issue is certainly with the supplier. If no satisfaction, contact Ebay, and if that is the only issue, the original bushing was for sure the right wall thickness, so machining the replacement should produce a usable part. Jim
 

Would anyone on here happen to have a set of the 2 bushings (new from CASE/IH) that they wouldn't mind measuring for me? It would be nice to have the CORRECT dimensions so I could check the replacement bushings in the last kit that I have. That way, I could know what to expect to do IF I decide to order another kit, and I could also help the older guy out that is in need of assistance.
 
how is the bushing fit on the steering gear shaft?

If that is correct there is no choice but to machine down the outside of the bushing to make it work. I know a couple of guys who could turn down a pop can if presented with the challenge...
 
Matt,

I'm going to check a shaft tomorrrow with the spare new bushing I have to see what it looks like. I remember on the 140 the shaft didn't want to go in AFTER I had put the bushing in the housing. But I did take a hacksaw and cut a slit in the bushing to get it into the housing. It might have been tight on the shaft because I cut a slit in it and it didn't go in perfectly round. BUT it could have been that the I.D. of the bushing was wrong too. I might try and calling the owner of the Super A I gave the kit to, to see what exactly the deminsions of his are and where exactly the problem is. He is in his 90's and kind of hard to understand, so we'll see.

Looking at the replacement steering gear shafts online, it looks like there are (3) different versions. I wonder if the bushings are actually different? Maybe I have a kit for the middle version (late Super A, 100, 130) and his Super A and my 140 were the other 2 versions?? Correct me if I am wrong, as I am just trying to find an answer. Sure wish I would have won the bid on the late style Farmall 140 Parts Manual on eBay the other day....
 
I just read the description on the $teiner website for the kit I have (they are the original supplier of the kit), and they specify that you need to hone or ream out the bushings to fit your tractor prior to installation. I feel like they would have made them the exact size if they were going to the trouble of making bushings. I didn't think the shaft or casting would actually "wear" having the need for a larger bushing to be "made to fit". How would one know what size they needed to have that done? Measure the shaft and casting??


(quoted from post at 21:35:19 05/03/13) The issue is certainly with the supplier. If no satisfaction, contact Ebay, and if that is the only issue, the original bushing was for sure the right wall thickness, so machining the replacement should produce a usable part. Jim
 
IH parts are expensive, but worth it if CaseIH still sells them. I replaced all the parts in the upper bolster of my Super M, except for the gear and shaft. Not similar to your 140, but they fit. I did buy one bearing from another company, returned it because it was the wrong one and got one from CaseIH. I avoid ebay unless I'm desperate, has happened a couple of times.
 
YThe bushing should have a .001 to .0008" interference fit into the housing. If machined to that diameter on the OD, it will not "shrink" very much on the inside when pressed in. THe inside might need to be reamed to the worn shaft diameter for perfection. (the shaft might need to be ground to allow the smallest diameter to be the only diameter and fit to the bushing). Some "kits" are intentionally designed for Pro fitting of components. Best of luck, it is doable.
 
i have seen several different applications that bushing had to be reamed they were made that way to allow for distorted bores or high interference fit,once reamed they would be symmetrical and sized correct,the last one i used on a SA steering box fit without reaming or honing
 

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