Thanks a lot for all your advice and replies!

I got in touch with my dealer, and they recommended having it done by their workshop or another Morgan dealer, as it seems to be a fairly common issue, so they’re used to dealing with it! They mentioned it can be tricky to extract the remaining screw from the body if I'm not used to it.

Since we’re talking about the hood, I haven’t had the chance to drive in the rain yet, but we are planning a big road trip this spring and summer, several thousand kilometers. I’ve noticed that, on the passenger side especially, the hood doesn’t sit very tightly against the top of the door, so I’m a bit worried that quite a lot of water might get into the cabin. If I pull on the hood a little, I can make it seal quite properly, but it doesn’t feel ideal.

Is this a known issue? Does less water get in than one might expect?

For comparison, I went to Norway in a Caterham, and it rained a lot! When we left the car outside overnight, some water would always find its way in... but that’s a Caterham and it’s kind of expected. The Morgan feels much more refined and precious, so I’m a bit hesitant at the idea that water could really get inside and damage the leather, etc.