--- Andy Piercy <andy.piercy at gmail.com> wrote:
  Allison,
 Well hats off to you, it worked!
 I have now fixed the faulty internals of the two
 faulty Micropolis hard
 drives by teasing out the black gooey mass that use
 to be the head park
 rebound bumper / end stops for each drive.
 They had turned into a black sticky mush and as you
 correctly identified
 were holding the heads from un-parking. 
When removing this bumper, are you replacing it with
something (say, a stick-on rubber foot) or simply
removing it entirely?
-Ian