Thanks all but I am still missing how to do it.
I know I have the right seal.
Major questions are:
The seal and groove it sits is round, how do I get the all the residuals out of that round groove without damaging the coating of the Aluminium?
I understand I have to glue it in but how. Does the glue go on the whole surface of the round part or only partially?
If partially where exactly?
There is a whole lot of videos about all kind of hatches but non for a goiot