Ive messed with these CD32 mechanisms many many times...........My advise: don't mess with it, but do clean it a little..................now there is one thing I have not messed with and its this little hack on aminet that shows you how to re-Allign the CD drive.
I dont know the name of the file but just type CD32 in aminet and begin searching hehe.
I have always hope that someone would create a replacement drive thats fully 100% compatible yet can read and burn DVD and CD and at least read at 8x.