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Help Requested - Lid Lock Blind Nut

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Old 05-15-2023 | 05:53 PM
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Default Help Requested - Lid Lock Blind Nut

Hi all-

Going through my hatch area before I dive into the passenger footwell issues, and during general disassembly and cleaning I discovered that one of the welded, blind nuts that serve to hold the hatch lock on is no longer welded to the hatch.

It looks like it was JB welded, previously, and that does not seem to have held very well.

Any strategies for how to fix this? I thought about a jack nut, but that will put the lid lock assembly into a sort of canted position, which I'd like to avoid. Also, there's not really space to get an M8 jack nut into the current hole and I'd like to avoid drilling the hole any larger, if possible.

Thanks
Old 05-16-2023 | 09:46 AM
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You could use washers on the other side to equal the height of the flange on the nutsert you use so it stays square.
Old 05-25-2023 | 06:31 PM
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Wish they had been welded. Unfortunately Porsche went with a clinch nut for this application which are simply a press fit. I tried everything, JB Weld- whatever, and finally gave up (purists will scream and faint) and drilled holes on either side that I could just fit a box end wrench through. And my finger, to hold the nuts while I started the fasteners. C'est brutal mai ca marche!
Old 05-25-2023 | 08:02 PM
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C'est bon qu'il a travaille!

I decided to use JB Weld, again. On closer inspection on the other side, it looks like that was also JB Welded, and holding, so maybe there's hope if I can get enough pressure for friction to take over. I used marine grade JB Weld, so maybe that will make a difference, somehow.

If things fail again, I bought some low flange-height rivnuts that I'll try to install, but that's something that previous JB Weld might make somewhat problematic.
Old 05-25-2023 | 10:00 PM
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If it was mine I would install an aviation blind plate nut with a couple of small rivets. I think an AN-4 would be close enough to the original metric size to work just fine. It would be a permanent fix.

Last edited by Jerry Feather; 05-25-2023 at 10:25 PM.
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