Info request reguarding 5.25 drive repair.

[Douglas M. Howell <IO10677@MAINE.MAINE.EDU>]

    I have a 5.25" floppy drive that is disfunctional.  My guess
is that the drive's read/write head is not working but I'm not
sure how to go about testing it.  I can get a meter, but my
electronic skills are near nill.
    When I boot the machine the floppy makes 2 or 3 audiable clicks
and then just spins continuously.  The drive is aproximately 10 yrs
old and came from an elementry school.  It's an Ace-10 and came
with an Ace 1000.
    I have software for an Ace 500 and Apple IIe that are supposed
to work on the Ace 1000.  I have gotten the machine to boot up using
another drive.  I've replaced the drive card and the cable that
connects the dysfunctional drive, so all I am left with is that the
problem is within the drive itself.
    Could someone give me some ieas of how to pinpoint the problem?
I expect that having the unit serviced by a technician would cost
more than the worth of the machine and the unit combined.  So, any
ideas of how to locate or fix the problem would be wonderful.  I
do have a second drive that I can exchange parts with, but only for
testing seeing how it's my main drive on my IIe and without it I
can't do much.
                             Doug
Douglas                 | (Inter)Bitnet: Io10677@Maine(.maine.edu)
University of Maine     | "Science is nothing but trained and organized
Psychology, Technology  | common sense."  - Thomas Henry Huxley