Thanks for your detailed answer Kepler. I took apart the motor as you suggested and saw what was inside. That's about all so far. I did just go back and read the start of the thread. It didn't make sense before as I had to break open the motor and see the parts my self to see what was meant by 'non drive side' etc. The good-ish news is no massive broken bits as far as I can see. The following video shows my findings. I realise this must be really frustrating for you to watch as you know so much about these drives and I am such a novice! I cant work out how to get the cover off to remove the nylon cog, that's tomorrow's task. I had no O-ring and I now see why you would loctite the bearing! When I read it first I was like, "wont that stop it spinning?" HA I see now the reason.
Here's the stage I am up to.
http://youtu.be/YvNELzoklDE
Here's the stage I am up to.
http://youtu.be/YvNELzoklDE