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post #1 of 8 Old 08-03-2007, 10:27 AM Thread Starter
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ford 8n steering box

Hi: My brotherinlaw's 8n is increasingly hard to steer and the steering column (seems to) squeeks and binds if you turn it hard one way or the other. There is play in the box, the arms that come out of it in each vibrate as you drive.

I've taken the steering wheel off of it and got as much oil and greese in it as I can, that doesn't seem to help.

I can't find any way to put oil in the box.

Anyone know how to service this steering box without taking the tractor apart?

Thanks for any suggestions,

zimm
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post #2 of 8 Old 08-03-2007, 07:57 PM
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Re: ford 8n steering box

The bolt that holds the dash support will allow you to add oil or better yet corn head grease to the steering box using a grease gun with home made fitting adapter. Check eBAY to see what one looks like. If you are hearing noise from the steering shaft area chances are better than good that the bearings need to be replaced.

I would also jack up the front end and make sure the spindles are binding, causing your hard steering.



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post #3 of 8 Old 08-03-2007, 08:12 PM
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Re: ford 8n steering box

I would take the steering box off, disassemble it, clean it, check out the pinion gear and reassemble it. It ain't that hard and well worth the effort. You may need a ball spreader and a few open end wrenches. I had mine off the tractor and apart in less than 30 min. Exploded view starts on page 48.
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post #4 of 8 Old 08-04-2007, 09:45 PM
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Re: ford 8n steering box

If you need parts, be aware that there is an early box and a late.

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post #5 of 8 Old 08-05-2007, 06:59 AM
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Re: ford 8n steering box

Quote:
Originally Posted by parts man View Post
If you need parts, be aware that there is an early box and a late.

Yes, there are two diferent 8N boxes. The late one has screw adjusters to take up the lash, the early one you unbolt the output houshings and rotate them to adjust. Not sure when the change was though.

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post #6 of 8 Old 08-05-2007, 07:26 AM
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Re: ford 8n steering box

Quote:
Originally Posted by Ingersoll444 View Post
Yes, there are two diferent 8N boxes. The late one has screw adjusters to take up the lash, the early one you unbolt the output houshings and rotate them to adjust. Not sure when the change was though.
From John Smith's site:

1949 Serial number 8N141370 - 8N245636
There were 3 notable changes in '49. Starting at serial number 215759 the top link rocker was changed from a single hole to a 3 hole design. The steering box was changed at serial number 216989 to a Spicer type with tapered sector shafts for better backlash adjustment. There are set screw adjusters on both sides of the newer style steering box. The dash panel was also changed slightly to fit properly with the new steering box. At serial number 245261, nearly the end of '49 production, an inner grease seal was added to the rear axle housing to help stop the common problem of gear lube leaking onto the brakes.

John Smith's Ford ID Page

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post #7 of 8 Old 08-05-2007, 01:48 PM
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Re: ford 8n steering box

If you've got the later steering box then you can use the adjustment screws to draw the bevel cut sector gears closer together, tightening up the steering. If it's the older (non-adjustable) steering box, you should be able to remove the sector gears and swap sides (left to right and vice-versa) to take up some slop... unless that's already been done. Do you have much "up-down" play in the steering shaft? There should be shims between the cover of the steering box and the body. You can add/remove shims to adjust this play and tighten things up, too.
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post #8 of 8 Old 08-05-2007, 05:34 PM
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Re: ford 8n steering box

Great information Ken and Steve.
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