uneven rotor wear

[newprot5fan]

hey guys,

I am just wondering how long it will take for a new rotor to show signs of contact with the brake pads? I am asking this because I had new pads and rotors put on a little while ago, but the right rear rotor only showed wear on the very top (not where the whole brake pad would be contacting it)....

Turns out the caliper was messed up so I replaced it. So now I am wondering when the rotor will show signs of full brake pad contact? I have had it on for about 3 days and so far nothing new (still just signs of wear at the top). The left rear shows normal wear. SHould I be concerned or will it take some time? I am only asking since it didn't seem to take too much time at all for the left one to appear the way it does...

thanks

 

[P-Funk!]

Bad brake pad? If it is not even across - it would do what you describe. Remove the pad and place on a machine shop flat table. If you don't have one - use the kitchen table and try to get a piece of paper under any corner (it should be perfectly flat). Rotate the pad around the table (different spots to make sure it isn't the table...).

 

[2KIDSandNOtime]

Take a sharpie and make a few radial lines from center out where the pad should be contacting the rotor - multiple lines will show any uneven runout as well. Sounds like your old caliper's piston was binding in its bore? Good luck.

 

[P-Funk!]

^Good idea! yeah, it may be a binding piston or caliper.

 

[newprot5fan]

so even getting a brand new caliper and bracket wouldn't fix the problem? It seems all the wear is at the very top of the rotor.

New caliper, new rotors, new pads.....so what else could be causing this? I'm going to call him next week so I want to be somehwhat educated so I don't sound like a fool

Thanks

SO your suggestion was to just run a marker from the inner to outer part and see what wears away?