Problem with my Ben Hur Mikron, need your help if you please !

Hello Gentlemen !

I was lucky enough to find a Ben Hur Mikron (very much like and Apollo Mikron. The problem is, the adjustable ring doesn't work. There is no resistance when I screw tight, this is just like a regular DE. :/

So, I took it apart, the task was harder than expected because, in the head, some corrosion made some goop and both parts were stuck. So I bathed the razor in several thins, and the head finally came apart.

Here are some pictures :







Isn't it supposed to have a spring somewhere ? My Gibbs adj works with a sprinc, and it's quite easy to see the "adjustment moment" when you close the razor. So :

- does it just miss a spring ?
- is the srping inside but stuck ?
- in the head, in the part aournd the hole, shown here :



Is it supposed to be like this ? Because the corrosion hides a lot. Is the center tube supposed to be stuck or should it move ?

Any input is welcome, thank you very much for your attention !

Cheers,
Thomas

Problem with my Ben Hur Mikron, need your help if you please !