You may want to check how shoes fit in drums. On that system, the short shoe is the primary, which "energizes" the brake assembly. When the shoes are loose in the drum because the drum has been turned, just part of the lining contacts the drum. If it is the leading edge, the brakes become overly sensitive. If the brakes are properly adjusted, only the center of the lining contacts the drum. When only the center of the lining contacts the drum, the brakes feel ok in slow speed application, but fade quickly during harder stops.Hello all,
I cleaned things up, honed and kitted the wheel cylinders while I waited for new shoes to arrive. Things turned out well and the Champ is back on all fours again.
I did a lot of drum brakes, and corrected a number of "Saturday mechanic" screw ups. IE- take the drums to the machine shop, have them turned, buy new standard size shoes, assemble,call it good. Now the vehicle has different diameter drums on each wheel and linings that have limited drum contact. Wonder why brakes pull and fade.