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The Thrill Of Victory

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Michaels Dad

11-28-2007 16:55:03




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A few posts back I told of my band-aid fix on the the steering gearbox..then it gave up...steering wheel came up a couple of inches.

After 67 dry runs (or so it seemed) I saw fit to fill it with oil. While taking steering gear box 101 I ended up making several observations, some of which are:

Pull both sectors out... trying to install steering column without doing this can damage the lower bearing. Good thing I was using an old one, those cages are very fragile.
Got the hang of that, then used the good bearings and cones to set axial play.

It took several dry runs to get the sector arms in the right orientation. In the vise it looked right, but low and behold when I tried to install and check steering it was off. Indexing the following sector one tooth solved that.

Don't know what happened, but after repairs the turning radius was a lot less than before I started. Don't know if all the damaged parts that were logged in the box had anything to do with it, but now it steers a lot easier than before in both forward and reverse.
Still puzzled about the smaller turning radius, but I'll take it.

Really learned a lot about how the box worked.

One last thought. Wonder if anyone has considered using the steering column tube for an oil reservoir. I understand if the box is leak free and completely filled the top bearing should get oil, but evidently this isn't always the case.

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Michaels Dad

11-29-2007 12:22:11




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 Re: The Thrill Of Victory in reply to john_bud, 11-28-2007 16:55:03  

soundguy said: (quoted from post at 16:56:19 11/29/07) #68 is needed.

While you may have the sector gears indexed correctly with each other.. it really sounds like you have the leading gear indexed incorrectly with the ballnut.. that is why you have a lower turning radius.. the ballnut is reaching hte top or bottom end of it's max travel and limiting your turn radius.

Soundguy


The diameter of the circle I can now make is way smaller than when I started.

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NWMO 901 SOS

11-29-2007 09:10:00




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 Re: The Thrill Of Victory in reply to old, 11-28-2007 16:55:03  

soundguy said: (quoted from post at 10:56:19 11/29/07) #68 is needed.

While you may have the sector gears indexed correctly with each other.. it really sounds like you have the leading gear indexed incorrectly with the ballnut.. that is why you have a lower turning radius.. the ballnut is reaching hte top or bottom end of it's max travel and limiting your turn radius.

Soundguy


Hey Soundguy,

The way I read it, Michaels Dad has an improved turn radius (sharper) after his work. He's not sure why, but is happy with the improvement.

Chris

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Michaels Dad

11-29-2007 04:16:06




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 Re: The Thrill Of Victory in reply to Michaels Dad, 11-28-2007 16:55:03  
After taking the arms off, (that was the hard part, I used wedges) I put the nut back on flush with the end of the shaft. Removed the two bolts holding the cover on, that would be the cover that has the adjustment bolt on it. Got a brass hammer and knocked them out. They came right out no problem, and with an "o" ring for a seal they can be easily re-installed.

My mistake was to try and set it all up with everything in the middle. For some reason that didn't work. The sector arms were off, and I had to rotate the follower sector one tooth. That was easy also. I just made sure the steering wheel couldn't move, removed the sector and re-installed it one tooth over. All this was done with the box bolted to a 4x4 held in a vise.

Still don't know why the wheels turn more to the right and left than they did before. Maybe the 21 rollers and cage parts had something to do with that.

By the way, this was on a 640.

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soundguy

11-29-2007 07:56:19




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 Re: The Thrill Of Victory in reply to Michaels Dad, 11-29-2007 04:16:06  
#68 is needed.

While you may have the sector gears indexed correctly with each other.. it really sounds like you have the leading gear indexed incorrectly with the ballnut.. that is why you have a lower turning radius.. the ballnut is reaching hte top or bottom end of it's max travel and limiting your turn radius.

Soundguy



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Tom in TN

11-28-2007 21:03:01




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 Re: The Thrill Of Victory in reply to Michaels Dad, 11-28-2007 16:55:03  
Dad,

How did you get the sector shafts out of the gear box? I rebuilt my Ford 2000 manual steering a couple of years ago. The IT Manual seemed to imply that the sector shafts would come out and that they could then be re-installed with the steering shaft (worm gear) already installed.

I tried and tried and tried to get the sector shafts out of the box and never could get them to move even the slightest bit. Eventually, I installed the steering shaft by pre-setting the sector gears to an extreme position (either fully left turn or fully right turn - I don't remember now) and pushing the steering shaft down into the box engaging the worm gear into the sector shaft gear in the proper timing.

It was a nightmare.

So, how did you get the sector shafts out?

Thanks,

Tom in TN

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