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> sheetmetal disc under pedal box
lkeigwin
post Jul 23 2024, 02:15 PM
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Does anyone know the purpose of the sheet metal disc, about the size of a half dollar, that I found under pedal box in my 1975 1.8? I've seen reference to it here only once before, but no no said why these are found in some cars at least.

Thanks, Lloyd Keigwin
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brant
post Jul 23 2024, 02:29 PM
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I think you are referring to the welding access holes in the chassis...
in the rear trunk too.

for the long arms of a spot welder to reach through the hole and allow access for the spot welding
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lkeigwin
post Jul 23 2024, 03:27 PM
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QUOTE(brant @ Jul 23 2024, 04:29 PM) *

I think you are referring to the welding access holes in the chassis...
in the rear trunk too.

for the long arms of a spot welder to reach through the hole and allow access for the spot welding


thanks Brant but I think this piece (55mm) is bigger than the holes you're referring to. And of course it is not a hole, but what you get when you cut a hole. I should note that there is no serious rust and that I think I'm the first to mess with the pedal box. Nearby there is that curious cut out in the sheet metal plate below the floor (looks like a weak and misplaced tow hook) but I found this disc on the inside, under the pedal box. Up toward the front there is a lot of seam sealer and it's easy to see this piece was pressed in. So I'm thinking this was meant to spread the load from the pedal box, or maybe to keep the box from being glued in by the seam sealer. Or maybe Jurgen was just funnin' with me 49 years ago when he threw a piece of scrap into the footwell.
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SirAndy
post Jul 23 2024, 04:47 PM
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bdstone914
post Jul 23 2024, 05:00 PM
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I know the disc you describe. It is held in with seam sealer. I think it was a drain for when the chassis was dipped.
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Ishley
post Jul 23 2024, 05:40 PM
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When I replaced my floor I came across a similar area. The pedal support bracket which is welded to the floor pan has a cutout like you describe. I made a new piece to close the hole on mine.


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Ishley
post Jul 23 2024, 05:45 PM
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And a view of the piece I made and the original area.


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Ishley
post Jul 23 2024, 05:51 PM
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And what it look like as I was welding the pedal support bracket in place.


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friethmiller
post Jul 23 2024, 06:39 PM
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Pics of my repair [before grinding] on my red ‘74. I’m about to reconstruct this entire area on my LE. It’s completely gone (IMG:style_emoticons/default/blink.gif)

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bkrantz
post Jul 23 2024, 08:03 PM
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Drain. But probably as much wishful thinking as function.
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ClayPerrine
post Jul 24 2024, 05:59 AM
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QUOTE(brant @ Jul 23 2024, 03:29 PM) *

I think you are referring to the welding access holes in the chassis...
in the rear trunk too.

for the long arms of a spot welder to reach through the hole and allow access for the spot welding


Brant,

They were not for spot welding. They were there to lock the panel to the jig during assembly. Once all the welding was done, then the lock cam in the jig was turned to release the newly built body. This has been verified by a video of the 356 bodies being assembled. Same exact holes in the body.
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brant
post Jul 24 2024, 07:51 AM
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Ok. Good to know
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bkrantz
post Jul 24 2024, 07:45 PM
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QUOTE(ClayPerrine @ Jul 24 2024, 05:59 AM) *

QUOTE(brant @ Jul 23 2024, 03:29 PM) *

I think you are referring to the welding access holes in the chassis...
in the rear trunk too.

for the long arms of a spot welder to reach through the hole and allow access for the spot welding


Brant,

They were not for spot welding. They were there to lock the panel to the jig during assembly. Once all the welding was done, then the lock cam in the jig was turned to release the newly built body. This has been verified by a video of the 356 bodies being assembled. Same exact holes in the body.


Cool--good info.
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bkrantz
post Jul 24 2024, 07:55 PM
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QUOTE(ClayPerrine @ Jul 24 2024, 05:59 AM) *

QUOTE(brant @ Jul 23 2024, 03:29 PM) *

I think you are referring to the welding access holes in the chassis...
in the rear trunk too.

for the long arms of a spot welder to reach through the hole and allow access for the spot welding


Brant,

They were not for spot welding. They were there to lock the panel to the jig during assembly. Once all the welding was done, then the lock cam in the jig was turned to release the newly built body. This has been verified by a video of the 356 bodies being assembled. Same exact holes in the body.


Cool--good info.
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