Following on from my last post, here is the best explanatory article I have found on aligning the heads on a floppy drive:
Aligning floppy disk read heads
Also, the “TestFDC” program looks to be useful in terms of real time feedback, as used in this “5.25 inch floppy drive inspection, repair, cleaning, alignment” video by FloppyDiskWorkshop.
I am just awaiting a couple more tools and parts to take a decent crack at getting this done.
Currently listening: Cardiacs - “Is This The Life”