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Old 05-09-2010, 03:17 AM   #1
Roadster62
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Default Installing Model A Ford == D == Shaped Nuts

Hello, this is my first post on the "New Ford Barn", looks like a nice upgrade from the original that I did read from time to time. What is the proper way to install the replacement D shaped captive nuts? I'm starting with the ones in the rear subrail crossmember. Is there a special tool I need to swedge the flange or some special tricks from past restorers? Thanks in advance! Bob
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Old 05-09-2010, 05:15 AM   #2
Mike V. Florida
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Default Re: Installing Model A Ford == D == Shaped Nuts

I'm sure out there somewhere there is a tool but I think most weld them in.

You can also peen the edge over with a small ball peen hammer and a heavy weight to keep the sheet metal from deforming.
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Old 05-09-2010, 06:51 AM   #3
BRENT in 10-uh-C
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Default Re: Installing Model A Ford == D == Shaped Nuts

Quote:
Originally Posted by Mike V. Florida View Post
I'm sure out there somewhere there is a tool but I think most weld them in.
Part of the problem with welding them in, is some that are being sold today by the Model A vendors are actually made of brass, --which won't "weld" very well. The way we install them is to use a 2X rivet gun with a flush rivet set. Very clean and quick.
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Old 05-09-2010, 07:15 AM   #4
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Default Re: Installing Model A Ford == D == Shaped Nuts

Brent, Welcome good to see your post!!!

One more thig, there is a person that has gas tank problems and a couple of the guys mentioned you had the pics of the tank open here is the link or look for "it must me the rust"

https://www.fordbarn.com/forum/showthread.php?t=598
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Old 05-09-2010, 09:36 AM   #5
Roadster62
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Default Re: Installing Model A Ford == D == Shaped Nuts

Thanks, I can picture that on a firewall or another area were a bucking bar will fit, but ther back rail is a boxed section. Bob
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Originally Posted by BRENT in 10-uh-C View Post
Part of the problem with welding them in, is some that are being sold today by the Model A vendors are actually made of brass, --which won't "weld" very well. The way we install them is to use a 2X rivet gun with a flush rivet set. Very clean and quick.
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Old 05-09-2010, 11:24 AM   #6
Dennis Pereira
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Default Re: Installing Model A Ford == D == Shaped Nuts

Its been awhile but I remember fishing a wire threw the channel and pulling the D-nut into place and welding
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Old 05-09-2010, 12:05 PM   #7
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Default Re: Installing Model A Ford == D == Shaped Nuts

That looks like the only way to do it. Make a metal bridge to hold the nut in place with a screw and MIG weld it in a few spots.
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Its been awhile but I remember fishing a wire threw the channel and pulling the D-nut into place and welding
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Old 05-11-2010, 08:25 PM   #8
Richard/Ca
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Default Re: Installing Model A Ford == D == Shaped Nuts

The way I did it was to put a peice of wire through the d-nut bend it(I made a little ball of wire) so it will hold the d-nut in place after you get it through the hole. It will take some manuvering to get the d-nut through the hole I had to tap with small hammer. After that I just pulled up tight in place and sodier it in place being careful not to get sodier in the threads. Cilp the wire and that is all you will have inside the channel.
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Old 05-11-2010, 08:54 PM   #9
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Default Re: Installing Model A Ford == D == Shaped Nuts

Thank you Richard, I may have been overthinking this deal. I'd drilled a brass 10-32 screw for a wire that I planned to run the D nut with then tighten it down on a bridge washer I'd narrowed for MIG wire clearance. Your knot of wire will work better, and allow more welding room.
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Old 05-13-2010, 03:34 AM   #10
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Default Re: Installing Model A Ford == D == Shaped Nuts

FINISHED! Wire and a MIG welder worked just fine. I'm not a MIG welding fan, but have to admit in this case it was the right tool for the job. Now if someone could post an inside photo of a 30-31 Ford Coupe/Roadster trunk I can move onto the next problem, the inside rear tin.
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