need help with adjusting hidden headlight motor

[Stagepirat]

Hello.
I finally converted the headlights on my 73´charger to hidden headlights (from a 71 donor car).
It seems to work fine and fits, but I have the problem, that the motor of the headlights seems to not realize when the grill is open all way up.
When I loose the screws an turn the motor it seems to work fine.
So my question:
Is it possible, to adjust the point of the end stop inside the motor? Are there any possibilities to adjust the motor? Are there contacts in the Motor that could be rusted or dirty?
Maybe someone here has a picture how the motor looks inside. I don't want to open my motor before I know what awaits me inside.

Thank you

[Nacho-RT74]

 

[Nacho-RT74]

 

[NHCharger]

Board member Topher is the hidden headlight guru.
Link to his website.  http://www.headlightmotorman.webs.com/