I have improved my E-Type by inventing a special bolt to fix the lower part of the air dustbin:
This is the upper side of the bolt: UNF:

This is the lower side: UNC and the seam I made:

Main idea was to invent a bolt which cannot turn when I loosen the centre nut inside the dustbin. And I do want to be able to remove the dustbin for when it‘s time to change the oil filter. But I do not want to remove the wheel arch protection sheets to be able to take out the dustbin, so a simple „use a screw and a nut“ - approach would not provide a solution.
So I made this:
It‘s an ex-exhaust manifold bolt, on which I welded a flat washer. I structured the welding on the underside, so that it gave kind of a seam / to fit into the slot of the retainer „bridge“ inside the sill.
I fitted the twin bolt from below with a UNC nut, and a washer. It can slide a bit inside the cutout in the carrier.
But it cannot rotate because of the „welded seam“on the underside. On top of the retainer bridge, there is the flat washer, so that the dustbin does not gain any hight (which is important), but the bolt would not fall through. Inside the dustbin I used a thick washer and a UNF nut.
Job done... if you take out the UNF nut in the dustbin, you can take the dustbin out of the car. The bolt stays in place, is a bit adjusteable, and can be removed if needed, by unscrewing the nut from below.
Carsten






