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3000 steering box issue

B

BigDanT

Member
I'm rebuilding a steering box off a 3000, it's the type box that has the drive bushings and when I go to install the bushing for the rear sector gear shaft it binds up the shaft. The shaft will turn freely
before it is installed, but as soon as I start driving it in it will bind and not allow the sector gear to move. I can put a steering arm on it and get it to move, but there's no way to set the adjustment
being it's just too tight for in and out movement. The forward shaft works fine so I switched bushings and it did the same thing. I tried it with and without the worm gear, no difference. Also tried it with
the forward gear in the rear hole and it still did it, seems it may be the opening the bushing gets driven into but how could that be? Anyone have an issue like this before?...Thanks
BTW, the drive bushing is part #47 on the diagram.
 
here are the pics
cvphoto104984.jpg


cvphoto104985.jpg


cvphoto104986.jpg
 
Mike, I can't even get to the setting point, as seen in the second picture there are no caps or adjustment screws in place and it's still bond tight. Almost has to an alignment issue, but I can't see how.
 
What parts are new and which parts are original?

Have you measured the two shafts, bushings and holes with a micrometer?

You said that you tried swapping shafts front-to-back, but have you tried swapping the bushings?

This post was edited by Sean in PA on 10/18/2021 at 04:16 am.
 
Shawn, yes I tried switching bushing, still did it.
Only thing new on the sector gear line are the
outside seals and the opposite side sleeve
bushings. Drive bushings are original. New sleeve
bushings are by no means tight but I guess there
could be an alignment issue there. ???
 

If that bushing is a little tight, I would use a brake cylinder hone to open it up a wee little bit.
Don't over do it.
 

If that bushing is a little tight, I would use a brake cylinder hone to open it up a wee little bit.
Don't over do it.
 
Thats just it, I can put that bushing over the shaft
when its out of the case and spin it line a top and
when I tried it on the other shaft it worked fine too.
The bushing is not tight so I guess it has to be in a
bind from the there end, just cant figure from what.
 
How tight does the bushing fit in the hole in the case without the shaft in there? If that's OK, then I'm thinking that the case wall is thinner up there than on the rear hole. Have you tried not driving the bushing in all of the way? Maybe you need to grind some of the end of the bushing off to get it to seat without putting pressure on the gear
 
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