Bessa R4A film advance crackles / weird noise

[jessestr]

I just aquired a Bessa R4A camera and put a film in. Everything runs smooth until I close the back door. It makes a sound like the film sprockets get ripped off but it advances. I instered other film rolls to check etc but stays the same.

It's like the badk is pressing so hard on the film. Can I adjust it? Or what could it be? I'll post a video soon.
Thanks

 

[mfogiel]

Please check if the rewind knob is not creating friction. It happens with my R4A if I attempt to wind not in the vertical position.

 

[jessestr]

Please check if the rewind knob is not creating friction. It happens with my R4A if I attempt to wind not in the vertical position.

It perfetcly works without the back door on it. It runs very smooth without.