CRD Joe wrote:
Both people cant be right. Id like to know what way to break in new brakes is actually correct.
There are several methods for "seating" or "bedding" in the pads, but the ultimate goal is the same. The idea is to get the brakes HOT and force the new pads to conform the the surface of the rotor. Irregularities between the pad and rotor can cause pockets of hot air to form between the pad and rotor which will lead to "brake fade." Seating the pads helps to remove those irregularities.
Cross drilled and or slotted rotor reduce this effect by allowing those pockets of air to pass through the slots or holes in the rotor.
I believe that pads that have not been seated will develop early "glazing" which will lead to increased pedal effort and that uncomfotable squeeking noise. Glazed pads are easy fixed by removing the pad, rubbing the surface on rough concrete, and reinstalling. But you still need to seat or bed the pads to help prevent it from happening again.
My method for "seating" the pads involves accelerating to 50-60 mph and then braking hard (not emergency braking) down to abut 15-25 mph. Then drive normally for a bit so they cool down and then repeat 3-4 times.
Many peoples driving habits allow them to seat the pads almost daily and a simple "pad slap" works out great. Other peoples driving habits will always cause glazing, but they typically dont care because they drive slowly and are physically unable to hear the high pitced squeak.
