1. Completely remove the clevis pins from the rear handbrake rods to the cylinders
before adjusting the rear shoes.
2. Adjust the shoes to just barely skim the drums.
3. Then, and only then, reconnect the handbrake linkage and adjust the cable if
necessary. This is a common fault of people setting up the rear shoes on Healeys,
including licensed mechanics who should know better!
4. Make sure all shoe steady posts have the width of the shoes sitting exactly true to
the drums. i.e. make sure the shoe lining isnt contacting along the inner or outer
edges first.
5. Make sure the shoe radius is arced exactly to that of the drum, with no high or low
contact areas, but a nice even contact.
6. Make sure pedal free play and travel is set correctly at the pedal push rod.
7. Make sure all flex hoses are in good condition and are not soft and ballooning.