Had my mechanic install Racingbrake OEM BBK, mated with PBR DP pads. I noticed a bit of brake pad squeal so I picked up a tube of Synthetic Brake Caliper grease and attempted to take the pads off. I've never worked on brakes before.

After putting it back together, I noticed vibration at moderate speeds when braking.

Rotors are new, pads are new, so the rotors are not warped b/c there was no vibration previous to me taking it apart last night.

What could have caused this? Overtightening of the caliper bolt? something else?

Thanks.

 

Did you bed the brake pads after they were installed? The vibration may be pad material unevenly distributed around the rotor.

 

I bedded them and the squeal was still there, then I took them off and used synthetic Brake grease and didn't bed them afterwards. Am I supposed to re-bed them?

 

I had a mysterious brake vibration appear after a particularly hot lapping session at Watkins Glen last summer and the first thing the "experts "said was "Warped rotors!" I asked one of the older instructors what he thought and he said to get a can of Brake Clean, and wipe down the rotors. I did, and the vibration disappeared.