Rubber seal/dust cover

I try to fix rubber seal between headlamp and chrome but was a nightmare…

Someone can help…its optional this dust cover ??

When a put the cover aaccording to the illustration is to tigh to fix the chrome rim…

…in advance thanks

The seal goes between the rim and the bowl.

To be honest I’ve never bothered to fit them as I doubt they do much.

if it’s better… I put it together without that rubber…peace😃

It’s even more fun to fit in an early e type.