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Ford 9N, 2N & 8N Discussion Forum

11/16-20 Die (ie: Steering Column Shaft Rethreadin

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Anonym

05-18-2005 10:30:06

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This is my first post, but this forum has been critical in getting my 1947 8N back in action.

I bought the tractor last year in decent shape with only minor mechanical work to do. Since then, I've disassembled the tractor and put a fresh coat of paint on her and now I'm finishing the re-wiring and starting to re-assemble the beauty.

My problem comes from using a puller to remove a stuck steering wheel. The puller boogered up and expanded the tip of the steering column shaft to the point that I can no longer get the acorn nut back on. I would like to re-thread it instead of buying a $200 shaft and trying to install it, but I'm having a heck of a time locating a 11/16"-20 die for the job. I did find one, but it ran about $70 for it and I'd probably never need it again.

Do any of you have any suggestions to solve my problem? Any thoughts and/or ideas would be greatly appreciated!

Thanks,
Justin

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jiminoystercreek

05-18-2005 19:57:25

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:30:06

You could finish splitting that MSC die (it's already split on one side) and set in BELOW the mushroomed part of the shaft and just run the die backwards (up) the shaft to fix the problem.

From the Old Master of Alternate Methodologies (jury riggin)

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TIMW(PA)

05-18-2005 14:03:29

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Re: 11/16-20 MSC has'm for $19.54 in reply to Anonym, 05-18-2005 10:30:06

here ya go..a little more affordable

MSC industrial supply 11-16 x 20

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Anonym

05-18-2005 14:28:35

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Re: 11/16-20 MSC has'm for $19.54 in reply to TIMW(PA), 05-18-2005 14:03:29

Ahh, that's refreshing! Thanks Tim! I'll probably end up ordering one and going that route. Seems to be the cleanest/most original way of fixing it.

If anyone else is in need of one, please let me know and I'll share the wealth. I doubt I'll have much of a use for it after she gets fixed.

Thanks,
Justin

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Dan

05-18-2005 14:28:30

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Re: 11/16-20 MSC has'm for $19.54 in reply to TIMW(PA), 05-18-2005 14:03:29

Problem is - you can't get that over the mushroomed part. You "could" grind around the edges, then use the die, but you would not be able to ensure the threads will line up when they meet. It would be good if you could find a two piece die that locks together so you could start it from the bottom and work your way up...

Dan

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TIMW(PA)

05-18-2005 19:54:25

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Re: 11/16-20 MSC has'm for $19.54 in reply to Dan, 05-18-2005 14:28:30

All he has to do is to use a file gently and dliberately to get the diameter back down where it belongs bevel the top edges slightly and run the Die on it. With that asjustable type Die i wouldnt doubt if he could open it up some and make several passes to get it shaved back down

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Barry8n

05-18-2005 11:06:56

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:30:06

Take the shaft to a local machine shop or better yet vocational school (often will do for free to show kids techniques). Have them turn it on a lathe. Just be sure the operator knows what they are doing turning threads.

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Barry8n

05-18-2005 11:09:57

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Barry8n, 05-18-2005 11:06:56

If you don't have the shaft out then the lathe idea would be more time consuming. You might try a local plumbing or electrical shop.They might have the dies and do it reasonably on the side?

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Anonym

05-18-2005 11:12:22

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Barry8n, 05-18-2005 11:09:57

Thanks for the replies! No, the shaft is still on the tractor, but I may call around and see if anyone might have one. I've struck out with both places I thought I could get one.

Justin

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Rob

05-18-2005 14:15:43

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 11:12:22

Don"t cut it. Start by filing it down to the right size and then worry about the thread. You have to get it to the right size before you can run a die on it anyway.
You might drill and thread the acorn nut for a set screw. Or maybe drill for a small hard pin to make up for lost thread.
I know I"d look hard for a way before I sprung for a new shaft. A machinist might have some thoughts on a way to fix it.

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Hobo,NC

05-18-2005 10:46:08

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:30:06

A 18X1.5 MM is pretty dog'on close. Works give'it a try

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Dan

05-18-2005 10:41:34

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:30:06

Good luck finding a die that big. If it did not mushroom too much of the top, you could do what I did when I mushroomed out the hydraulic lift quadrant shaft on my NAA Project Rustbucket - I took an angle grinder and ground off the mushroomed part off the top. Make sure you stay straight and take your time. There should still be plenty of threads left if you only have to remove say 1/4" or so off the top, it won't hurt the threads below the grind, and it is a heck of a lot cheaper than a new shaft!

Good luck,
Dan

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Anonym

05-18-2005 10:44:59

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Dan, 05-18-2005 10:41:34

Thanks Dan! I may have to try that since the die doesn't sound like a very cost-effective solution.

Are there any issues with the shorter shaft? I would need to cut about 1/4" off of it. Would it be bad to compress the spring that much?

Thanks,
Justin

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Dan

05-18-2005 10:55:57

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:44:59

I can't see any problems if you only take 1/4" or so off.

Dan

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Russ SoCal

05-18-2005 11:24:27

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Dan, 05-18-2005 10:55:57

I just went out and pulled the acorn nut off. It only had six turns plus a smidgeon. A quarter inch on 20 tps is five of em.
Russ

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Dan

05-18-2005 11:29:37

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Russ SoCal, 05-18-2005 11:24:27

But, doesn't the shaft have more than 6 threads total? If you take the top 6 off, would there be more threads to take its place? I would immagine you really could make due with three threads in a pinch.

Dan

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Russ SoCal

05-18-2005 11:39:48

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Dan, 05-18-2005 11:29:37

Dan,
The nut doesn't bottom on the shaft inside the "acorn." The wheel can only go on the column so far and the nut seats on the wheel.
Wish you guys hadn't started this thread. I just noticed my right steering arm wobbles on the sector shaft splines. PHOOEY!
Russ

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Dan

05-18-2005 11:46:42

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Russ SoCal, 05-18-2005 11:39:48

DRATS - you may be onto something there. Better count the threads before the grinding starts!

Good luck on YOUR new project :)

Dan

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Anonym

05-18-2005 13:17:31

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Dan, 05-18-2005 11:46:42

Sorry about that Russ! I'm going to seat my new steering wheel on the shaft and see how much of the shaft is left if I cut the end off. If there's not enough room, I'll probably look for a new acorn nut w/ a more common thread size and grind/rethread the shaft to fit.

Thanks for all your input! Man, I love this place!!

Justin

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Tim...Ok

05-18-2005 10:52:24

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 10:44:59

How bout using a thread file to clean"em up?? I"ve repaired some pretty buggered up threads with a good thread file and a little patience..Should be able to get one at any good tool place,but I doubt Lowes or similiar would have"em,but no good machinist would be without one.. :>)

Tim

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Anonym

05-18-2005 11:01:56

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Tim...Ok, 05-18-2005 10:52:24

Tim,

The problem stems from the "mushrooming" that took place. I would have needed to grind the shaft a little to rethread it, but removing the mushrooming totally would eliminate the need.

Justin

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souNdguy

05-18-2005 12:00:18

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Re: 11/16-20 Die (ie: Steering Column Shaft Rethre in reply to Anonym, 05-18-2005 11:01:56

A bit drastic.. but you could always cut off say a half inche of shaft, and then weld a bolt, etc in place. Be carefull about the shaft spline..Find an acorn nut to fit that bolt, or find a bolt to fit the oem acorn nut. Turn the end of the bolt shaft down to just match the ID of the steering tube, and make it overlap at least a half inch. A steady hand and an angle grinder should be able to get this close. A flat file should be able to get you down to an interference fit. Tap it in, use that grinder and make a good v-cut all the way around, then weld the seam, then grind and file the weld flat.

You could do this with the shaft still on the tractor, with the steering top cover pulled.

Id try this before i paid 2xx$ for another shaft.

'Nother thought would be to use a file/grinder to unmushroom the end, and then find any close die, and nut combo to make it fit.

Soundguy

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