I have an extra game the motor for this game a Multiproduct 2105/2106. It has issues, after a few scores it screams/moans and slows down. It did this from the start. So I thought I'd be adventurous and dismantle it (taking pics as I go). I cleaned the gears. I am not sure what it's called, I am pointing to it in the picture with a q-tip. The surface appears to be worn. Is this the issue.
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