does anyone know how to adjust the pad contact on the purple hayes brake?
Holy old brakes! Nice.
Old Hayes Purples (and blacks and champagne) are "self adjusting" as far as I know and there's nothing you can actively do to adjust the pad contact. You have to push the pistons out manually when changing pads. I just put a sizey screwdriver in between the old pads and twist to push the pistons out. Lever position is adjustable via the little allen screw, but thats it.