[Phono-L] Motor Problem with Thorens Excelda

[Bob]

I'm repairing a Thorens Excelda.  Everything on the motor looks good except 
it is impossible to get it to hold speed correctly.  I've adjusted the 
governor six ways to Sunday and no luck.  The problem is that the motor 
doesn't slow down and stop but is totally inconsistent when sped up and the 
sound is garbled and indistinguishable.  I noticed that there was about 10 
degrees play in the turntable spindle and the bronze gear that connects to 
the worm.  However, it seemed that if there was any tension on the turntable 
like that caused by the weight of the reproducer in the record groove the 
play in the spindle/gear was overcome.  Suddenly the amount of play 
increased to about 180 degrees and I found there is a small piece of wire 
that connects the record spindle to the bronze gear.  This piece of wire 
acts almost like a sheer pin.  I'm guessing it was put there to prevent 
damage to the bronze gear or the worm gear in the governor.  I thought one 
way to determine if this is the problem would be to put a little super glue 
between the spindle and bronze gear to make this connection solid.  I can't 
think of any harm that this would do and would allow me to test my theory 
without disassembling the motor.  In the unlikely event that I should have 
to remove the bronze gear from the spindle at a later time, I could dissolve 
the super glue with acetone.
    Have any of you run into this problem?  Is there any reason for play 
between the spindle and bronze gear? What is the reason for the shear pin? I 
look forward to youur response so that I can get this Excelda running 
properly.