Gene: I'm stumped, Hendrik is stumped; do you have any ideas about this? I have replaced every internal part in the steering box with new Case parts, even an NOS steering wheel shaft and worm - all new except for the shaft the steering-arm presses on to. Its taper is in excellent shape, keys and key-ways are sharp, the taper bore on the steering arm is perfect. The steering box itself is in good condition. There is no in/out play in the steering wheel shaft. After replacing all the parts, the steering wheel shaft has 1/3 turn of play in it. It's the same amount of play the steering wheel had with all original parts. It's a 1948 Super A. I'm not referring to play in the ball-joints or spindles. Turn the steering wheel one direction until it stops and it will take 1/3 turn the opposite way before the steering arm begins to move.
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gene bender
Well-known Member
Yes i have been following your problem. Only thing i can think of is the vertical shaft must have play at the top in the bearing area as you have replaced everything else that can be worn had a similar problem with a Cub and thats where the culprit was.I have rebuilt many of the A and Bs with great results till the Cub came along but i cannot see why your problem could be there but sometimes in these old tractors they were quite used and abused. For those reading his problem and have the ball ends on the spindles those balls get worn and egg shaped. I use the calipers and then with a sand disc on the grinder remove material till its round again not rocket science just get them close so when you adjust the tie rods you can turn the steering back and forth and have no play there. Back to your problem it means removing the whole steering sector to get a hard look at your problem good luck and please follow up with what you do find
Janicholson
Well-known Member
Yes it would. And you can also look at the arm under the front (I would put a soda straw on it with a bit of tape so it sticks straight down. Then with someone moving the steering wheel, look for side to side waving motion (like a conductor's baton) if found, it would indicate upper bushing wear allowing movement where it should not be. Jim
Hendrik
Member
Since there must be something loose inside the box, I second Jim's proposal.
The upper ball bearing (17) is secured by a circlip (16) and a flange type retainer (18). All wear parts being new, I would suspect the assembly and positioning of this bearing.
See attached link.
HTH
Steering box parts book
The upper ball bearing (17) is secured by a circlip (16) and a flange type retainer (18). All wear parts being new, I would suspect the assembly and positioning of this bearing.
See attached link.
HTH
Steering box parts book
Hendrik
Member
Another thought. I seem to remember from your initial post that you installed a new steering shaft, incorporating the worm.
Did you possibly install a steering shaft of a Farmall 140? I looked at the part numbers and they are different between Farmall Super A and Farmall 140. We should bear in mind that this does not necessarily imply that any of the dimensions, relevant to your slack issue, are different between the two but it is worth a thought.
Super A: steering shaft 351820 R92; worm sector gear (28 teeth) 351815 R1
140: steering shaft 369404 R11 or 381403 R91; worm sector gear (28 teeth) 70889 C1
(Note: I found that the steering shaft has the same part number 351820 R92 for Super A, Farmall 100 and Farmall 130. Farmall 140 has 369404 R11 or 381403 R91.)
HTH.
Did you possibly install a steering shaft of a Farmall 140? I looked at the part numbers and they are different between Farmall Super A and Farmall 140. We should bear in mind that this does not necessarily imply that any of the dimensions, relevant to your slack issue, are different between the two but it is worth a thought.
Super A: steering shaft 351820 R92; worm sector gear (28 teeth) 351815 R1
140: steering shaft 369404 R11 or 381403 R91; worm sector gear (28 teeth) 70889 C1
(Note: I found that the steering shaft has the same part number 351820 R92 for Super A, Farmall 100 and Farmall 130. Farmall 140 has 369404 R11 or 381403 R91.)
HTH.
Rex Simpkins
Member
Is the middle shaft of your steering where it is pressed on jumping up and down when you turn the wheel, I had one I rebuilt and it was perfect, sold it and the next day purchaser was complaining. Looked at it and said damn its doing the same thing after replacing all those parts. Come to find out the shaft you are talking about that you did not replace had the area where the snap ring mounts was janky and just not good enough to hold the snap ring under pressure and snapped it. Replaced that shaft problem gone and steering tight
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