Brake problem
05-22-2008, 11:45 AM
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Brake problem
I put in Akebono ceramic brake pads to replace the stock pads... both front and rears. I bedded them in as per STOPTECH recommendation. I have been getting a lot of shaking with braking and when I inspected the rotors, there is a circumferential rim of discoloration on all of the rims... it's like the outer edge of the brake pads are not making full contact with the rotors and is leaving pad deposits or rust deposits. I think the pads traveling over these are what's making the car shake but I can't figure out why it would do that in the first place. Anybody have any ideas?? I am at my wits end and almost ready to throw the towel in and get new rotors and pads.... but that would be expensive....
05-22-2008, 12:07 PM
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Are these stock rotors or StopTech?
It sounds like pad deposition, you may have overheated the stock Akebonos while bedding in, causing the degraded pad to embed into the rotor.
I had this happen on my Alcons with poorly bedded in track pads and I used a set of hawk blues(one of the hardest pads around) to scrape off the deposits.
I actually just drove for a day or so with the blues on and then switched back to a set of street pads, which I gently bedded in.
Cold Hawk blues will chew up your rotors so don't leave them on for very long.
I had this happen on my Alcons with poorly bedded in track pads and I used a set of hawk blues(one of the hardest pads around) to scrape off the deposits.
I actually just drove for a day or so with the blues on and then switched back to a set of street pads, which I gently bedded in.
Cold Hawk blues will chew up your rotors so don't leave them on for very long.
05-22-2008, 02:08 PM
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Then the price of a set of race pads will cost almost as much as new rotors.
You can get your rotors turned to remove the deposits as well.
But either way I'd get new street pads if these have degraded enough to leave deposits.
Many recommend the Hawk HPS for regular street use.
But before any of that try an aggressive rebedding of the first set of akebono pads (10 stops from 60-10 with a gradual increase in pedal force until by the 10th time you're nearing lock-up. Let the brakes fully cool. Repeat the process)
That may do 1 of 2 things.
1: the deposits will be worn off and your rotors will function as normal assuming that they're not warped.
2: the deposition is too embedded for a rebed to remove it and the shimmy will be worse.
I'd try it since it's already started and will continue to pick up more deposits through use.
But either way I'd get new street pads if these have degraded enough to leave deposits.
Many recommend the Hawk HPS for regular street use.
But before any of that try an aggressive rebedding of the first set of akebono pads (10 stops from 60-10 with a gradual increase in pedal force until by the 10th time you're nearing lock-up. Let the brakes fully cool. Repeat the process)
That may do 1 of 2 things.
1: the deposits will be worn off and your rotors will function as normal assuming that they're not warped.
2: the deposition is too embedded for a rebed to remove it and the shimmy will be worse.
I'd try it since it's already started and will continue to pick up more deposits through use.
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