The Ford Barn

Mad Mac · 01-06-2025, 03:09 PM

After re-lining the service brakes on the LHS rear wheel of my roadster pickup I went for a drive to check the adjustment. I gradually rotated the wedge adjusting screw in until the shoe just started to contact the drum.

I was surprised to find that the drum became very hot before there was any braking action. That seems illogical because, if the new lining is contacting the drum sufficiently to generate heat, surely any pressure on the brake pedal must instantly expand the shoe fully onto the drum? What am I missing here?

01-06-2025, 03:09 PM	#1
Mad Mac Senior Member Join Date: Mar 2013 Location: New Zealand Posts: 412	Rear brake adjustment After re-lining the service brakes on the LHS rear wheel of my roadster pickup I went for a drive to check the adjustment. I gradually rotated the wedge adjusting screw in until the shoe just started to contact the drum. I was surprised to find that the drum became very hot before there was any braking action. That seems illogical because, if the new lining is contacting the drum sufficiently to generate heat, surely any pressure on the brake pedal must instantly expand the shoe fully onto the drum? What am I missing here?