What causes brakes to pulsate right after rotor and pad?
What causes brakes to pulsate right after rotor and pad?
Your problem can only be because of: Wrong or defective parts, incorrect fitting damage such as not using a caliper piston retraction tool, incorrect re-assembly of shims and bolts and anti-rattle springs, previous damage or mis-alignment being masked by the old pad wear, a foreign body introduced into the system.
Why are my rear brakes making a noise?
It’s not your new brakes, it’s your rear or something else like a hub, bearing or cv joint (I would think it was any of those three since they often make noise at all speeds). Also, remember that just because you just did your brakes, it does not 100% mean that this is a brake related issue.
What should eccentricity be on rotor and pad?
Thickness eccentricity should be zero, must be under .0015″. Check all installs with a dial indicator for runout. Spin the rotor with indicator at 90 degrees on the rotor face near the outer edge. Runout should be zero, must be under .004″, the less the better. Clean pad back, piston, and caliper. Replace shims.
Why do my brakes shimmy when I run through a puddle?
What is passed off as a “warped rotor”, and blamed on the user running through a puddle after heating the brakes, is a myth. The shimmy feeling that comes from brakes is usually due to uneven friction material build-up on the rotor.
Your problem can only be because of: Wrong or defective parts, incorrect fitting damage such as not using a caliper piston retraction tool, incorrect re-assembly of shims and bolts and anti-rattle springs, previous damage or mis-alignment being masked by the old pad wear, a foreign body introduced into the system.
Why is there an extra hole in the rotor?
Many rotors have an extra hole machined in the rotor. It is usually located between two of the stud holes. I am not sure of why it is there, perhaps to help balance the rotor or to aid in the machining process. What can occur is that a small amount of rust will form on the hub flange.
What causes friction build up on a rotor?
There are four major reasons for uneven friction buildup on rotors: Rotors were of uneven thickness when new. Rotors were eccentric when new or as installed. Uneven pad engagement. Improper break-in (a.k.a. “bedding”).
What should the runout be on a rotor?
Check all installs with a dial indicator for runout. Spin the rotor with indicator at 90 degrees on the rotor face near the outer edge. Runout should be zero, must be under .004″, the less the better. Clean pad back, piston, and caliper.
