Zoro,
I did get your PM, but I can only read the title.
So, I don't actually know what your question was.
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It's been many years since I disassembled my motor assembly.
It was a seized output shaft, but I don't remember exastly what I did -- I think it comes down to separating the gear box from the output shaft.
Brute force, and rust penetrant ????
There is a cam/labyrynth kind of gear in there -- take notes or pics.