square nuts on GPW fender

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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agadir
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square nuts on GPW fender

Post by agadir » Thu Jun 29, 2017 12:11 am

While working on my '42 GPW fenders I found some screws being fastened with square nuts as on the attached picture.

Does someone know whether these nuts were loose or soldered to the fenders? If soldered, inside or outside of the engine compartment?
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DSCN5380small.jpg
DSCN5380small.jpg (120.21 KiB) Viewed 466 times
Leszek
1942 Ford GPW "Script" under restoration

Ian Fawbert
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Re: square nuts on GPW fender

Post by Ian Fawbert » Tue Jul 04, 2017 3:45 am

Hi Leszek,

I believe you have the inside but from the captive/cage nut. The cage is missing!

They are at the top of this site:
https://www.joesmotorpool.com/3504-body-panels

What do you think?
Ian.
Australian Jeep Investigator
MB: 131175
GPW: 11730.
GPW: 225290.
Aust trailer: GMH 3- #211
http://www.vintageengines.net

agadir
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Re: square nuts on GPW fender

Post by agadir » Tue Jul 11, 2017 6:07 pm

Hi Ian,

Thank's for your input.

These are not caged nuts. They are too small.

Caged nuts were spot welded. In my case I see a splash of solder. I believe this is what it is on the attached picture. On the other hand it doesn't look like anything has been soldered there. Besides, the solder is inside the engine compartment, whilst the nut should be on the wheel side, hence my question.

Best,
Leszek
Leszek
1942 Ford GPW "Script" under restoration

Ian Fawbert
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Re: square nuts on GPW fender

Post by Ian Fawbert » Tue Jul 11, 2017 7:32 pm

Hi mate,

I see now- my eyes were out of perspective as to how small the nuts were.

Any chance of a bigger photo showing exactly where they were? The solder seems like a tinning point for part of the body grounding, but I cannot say i`ve seen little square nuts on the fender before in/on/as a factory fitting.

Cheers,
Ian.
Australian Jeep Investigator
MB: 131175
GPW: 11730.
GPW: 225290.
Aust trailer: GMH 3- #211
http://www.vintageengines.net

agadir
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Re: square nuts on GPW fender

Post by agadir » Tue Jul 11, 2017 11:38 pm

Hi Ian,

They are appr. 10 x 10 mm. I found them on the driver side fender in 2 locations as shown on a larger picture below. If you have a GPW and could take a look at your fender from the wheel side that would tell whether there are any square nuts and if so, if there are permanently attached to the fender.
DSCN5378small.jpg
DSCN5378small.jpg (149.78 KiB) Viewed 216 times
Thanks,
Leszek
Leszek
1942 Ford GPW "Script" under restoration

Thunderbird712
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Re: square nuts on GPW fender

Post by Thunderbird712 » Thu Jul 13, 2017 5:54 am

Leszek,

I went and looked at my fathers 42 GPW and found the same type square nuts. Now I cant guarantee that they are original but they have been there for a long time. Hopefully more people can take a look for you to start to show a pattern with square nuts or without. Also that is nice surviving examples of the tinning that belongs at those points!

Image

Image

Image

Image


TJ
TJ Zackman
1945 Willys MB S/N 430923
1953 M38A1 project
Need 45 MB Block with cast date of between March 3-16 and 3-24.

agadir
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Re: square nuts on GPW fender

Post by agadir » Thu Jul 13, 2017 8:45 pm

Thank you, TJ, for taking a look at your Dad's GPW.

So you also found square nuts there and some tinning. I am curious whether they are soldered to the fender or loose. I guess it is not easy to determine this without undoing the screws. I hope someone will let me know.

Best,
Leszek
Leszek
1942 Ford GPW "Script" under restoration

Thunderbird712
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Re: square nuts on GPW fender

Post by Thunderbird712 » Fri Jul 14, 2017 6:10 am

They are not soldered to the fender on any jeep. It's not meant to hold anything in place. The tinning is done prior to paint and masked off when painted. There are several more places that are tinned on the jeep.
TJ Zackman
1945 Willys MB S/N 430923
1953 M38A1 project
Need 45 MB Block with cast date of between March 3-16 and 3-24.

agadir
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Re: square nuts on GPW fender

Post by agadir » Mon Jul 17, 2017 12:35 pm

Thanks again, TJ, for confirmation. That was my suspicion that these nut were not solder, but I wasn't sure. I also identified tin in some other places. I guess it was used to prevent from rust.
Leszek
1942 Ford GPW "Script" under restoration

Chuck Lutz
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Re: square nuts on GPW fender

Post by Chuck Lutz » Mon Jul 17, 2017 3:18 pm

The wiring harness that goes from the 6-post up to the two-post is held with a bracket which is held to the fender with a round headed screw and a lock washer and square nut hold it to the fender. The "tinning" is to aid in radio suppression grounding. As in many cases, it appears some kind soul used a cut-off wheel or grinder to remove the head of the screw and to remove that wiring harness from the fender. In the meantime, the remainder of the screw and the nut stayed in the fender.

That's my take on this...the woven metal jacketed section of harness is what I am referring to....
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
GPW 108552 4/17/43 Louisville, KY. USA 20371278 (DOD est./Tom W.)
Bantam T3 4582 10/29/42 USA 0173499 (est.)

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