The greater the difference in the piston sizes, the more multiplication of force and the increase in travel. About 8 clicks is about right if the … Warning: Don't turn too high or it will be difficult to remove drum and shoes will drag. I would estimate the brake pedal travels 2-3 inches before the brakes begin to apply. But how much? Excessive brake pedal travel by chrisls » Sun 13th Aug 2006, 12:34am I've put up with it for a while, but thought I'd look into sorting it cinsidering I'm sorting everthing else out. Finding out what is wrong with your car by feel, smell, look, and sound. Brake pedal has to travel a considerable distance just to move shoes the required distance until they make contact with drum. Excessive brake pedal travel by chrisls » Sun 13th Aug 2006, 12:34am I've put up with it for a while, but thought I'd look into sorting it cinsidering I'm sorting everthing else out. This reduces pedal effort but increases travel.
, Brake Pedal Travel Is Excessive. The brake pedal on my '04 always seemed to have too much travel before the brakes engage. Since a single piston is moving two caliper pistons, pedal travel in doubled. Pedal travel can be improved by manually turning the brake-adjustment pinion (11) a maximum of 12 clicks but no more. Its like the brakes are out of adjustment (they are automatic adjusting, though). I understand that there should be a little bit of travel in the pedal so that the pressure is off the master cylinder when at rest. Dealing With A Low Brake Pedal. The area of the piston in the master cylinder is less than that of the brake caliper.
Brake drums will be marked clearly as to how far they can be machined safely to remove out of round.