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Odd number / no spotwelds?
#1
When sanding for tail light panel spot welds I saw this:

[Image: 417d622424137f54c4abaafc5ad38ed1.jpg]

“85” stamped on it.

Anybody know what it means?

Cheers,
Vincent
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#2
The brazing rod [ gold color metal ] means someone has done some welding work back there already
Might have replaced some parts years ago ... a lot of body shops used brazing rod to do patch work
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#3
(04-15-2019, 04:55 PM)OMS Wrote: The brazing rod [ gold color metal ] means someone has done some welding work back there already
Might have replaced some parts years ago ... a lot of body shops used brazing rod to do patch work

Oooooh, I'm finding these all around the tail light panel. This probably means it's been replaced before?

I didn't know about the brazing technique, it's like soldering but with higher temps. Now, I was prepared drilling out spotwelds but with brazing the material flows in between the 2 joined pieces so potentially the brazing material is in a much larger area, right? And... does this mean I'm screwed wanting to remove the panel?

Any clues on the number 85 stamped in?

Thanks!
V.
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#4
You'll want to remove all brazing materials if you intend to weld in that area. MIG welding will not stick to brazing compounds.

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#5
(04-16-2019, 01:10 AM)Vinnie Wrote:
(04-15-2019, 04:55 PM)OMS Wrote: The brazing rod [ gold color metal ] means someone has done some welding work back there already
Might have replaced some parts years ago ... a lot of body shops used brazing rod to do patch work

Oooooh, I'm finding these all around the tail light panel. This probably means it's been replaced before?

I didn't know about the brazing technique, it's like soldering but with higher temps. Now, I was prepared drilling out spotwelds but with brazing the material flows in between the 2 joined pieces so potentially the brazing material is in a much larger area, right? And... does this mean I'm screwed wanting to remove the panel?

Any clues on the number 85 stamped in?

Thanks!
V.
No clue on the number 85

It looks like they drilled out the spot welds and brazed in a new panel, thru the drilled holes
Yes the material flows but not as much as solder. It follows the heat so it depends how hot the person who was
making the repair got it. I"ve taken some panels off where most of the brazing didn't hold at all ... metal was too dirty / rusty
If you drill the same holes and get most of the brazing rod out, the panel may pry apart.
You may have to drill larger hole or if you have a torch start to melt the brazing rod
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#6
Pretty much every panel on a Ford has number codes on it. Do not know if the 85 is a Ford number or not. They code the stamping plant, Woodhaven, Ohio etc. also shift and date. They do that so if there is an issue in assembly they can sort out the parts by mfg. date.
Brazing was actually use on assembly at the factory on earlier cars in some areas but I think was over for 71 - 73. If you have a torch just heat it up and push it apart.
Nothing wrong with brazing. If you flux the parts good and know what you are doing works great.


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David
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#7
Thanks guys. I do not have a torch and there might be more metal work to do in the rear as the drop offs are quite rusty as well so have to make a plan first...
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#8
I'll try and take some pics of my rear panel tomorrow as its been stripped back, it also had some number stamps on it and brazing, i definitely got the impression it was factory, i couldnt see any cuts or joins and the internal trunk splatter paint was all the same.
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#9
(04-18-2019, 05:07 PM)baz70 Wrote: I'll try and take some pics of my rear panel tomorrow as its been stripped back, it also had some number stamps on it and brazing, i definitely got the impression it was factory, i couldnt see any cuts or joins and the internal trunk splatter paint was all the same.

I couldnt find the stamping but here's a pic of the brazing around the panel joins. So IMO these were done at the factory.... Unless proved otherwise.


[Image: sq9k-Nb79-Qc-Gy60-Rb-JBU0-Mw.jpg]
[+] 1 user Likes baz70's post
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#10
Thanks! I think they’re factory as well.
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