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  #1  
Old 01-07-2021, 06:52 PM
Ambush Ambush is offline
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Default Steering Knuckle Question

Waiting for paint to dry and for some parts to show up so I decided to see where all the flop was coming from on the front axles. bearings are pretty good. Most of the flop comes from elongated holes on the top and bottom yoke ears. Some from bolt wear. One bushing slid out with finger pressure, the other needed several taps with a small hammer. There is a grease nipple on the axle, but nowhere for the grease to go. No grease groove in the axle or bushing and no hole going to the bolt.

Main question is: Should the bushing turn in the axle or should the bolt turn in the bushing? Anybody ever put bearings top and bottom of the axle bore? An axial thrust roller bearing seems like a good idea, particularly since the tractor is going to have a FEL. Or perhaps a thrust bearing on the bottom.
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Old 01-07-2021, 07:01 PM
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darkminion_17 darkminion_17 is offline
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The bushing turns in the axle and the bolt clamps the knuckle to the bushing.
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Old 01-07-2021, 07:52 PM
Ambush Ambush is offline
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Thanks for the quick reply! My bushing is exactly the same length as the axle bore, so it won't clamp. Also looks like someone drilled all the ears 1/32" oversize, because the holes are round, but too big by about .035". That and the bolt being a bit under half inch creates quite a bit of movement. I think I maybe missing a spacer/washer on the bottom too.

EDIT: Just checked the parts diagram and I got all there is to get. But I have about 1/8" float knuckle to axle bore faces. Seems like a lot to squeeze the ears to tighten against the bushing, unless my bushings have been cut or worn down. Nothing would surprise me with a 45 year old machine that has likely had a number of less than caring owners.
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Old 01-08-2021, 07:54 AM
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ol'George ol'George is offline
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Quote:
Originally Posted by Ambush View Post
Waiting for paint to dry and for some parts to show up so I decided to see where all the flop was coming from on the front axles. bearings are pretty good. Most of the flop comes from elongated holes on the top and bottom yoke ears. Some from bolt wear. One bushing slid out with finger pressure, the other needed several taps with a small hammer. There is a grease nipple on the axle, but nowhere for the grease to go. No grease groove in the axle or bushing and no hole going to the bolt.

Main question is: Should the bushing turn in the axle or should the bolt turn in the bushing? Anybody ever put bearings top and bottom of the axle bore? An axial thrust roller bearing seems like a good idea, particularly since the tractor is going to have a FEL. Or perhaps a thrust bearing on the bottom.
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Old 01-08-2021, 05:26 PM
guido guido is offline
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Ambush,
I think it was "cadplans"... he welded bushings top and bottom of the steering knuckle and used longer bolts which he pinned to the bushings.
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Old 01-10-2021, 08:54 AM
dale c. dale c. is offline
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Put flat washers on the bolts and tighten the spindles onto the axle. If they turn free you're good. If they're tight you will need new bushings or you could grind a little off the top of the axle to give clearance. Then weld the washers to the steering spindles when done. A lot of times the bolts weren't tightened properly when new.
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Old 01-10-2021, 09:58 AM
Ambush Ambush is offline
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Guido, that's a good idea if the bolt holes are worn excessively. Or if you wanted to change camber for off road racing!


Thanks Dale. I put a .030" stainless shim washer (same size as bushing) between the ear and the bushing. Works great now!
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