lets try this again,
i posted before but it didnt work.
Car:
1999 Contour SVT 60,000 miles
Problem:
rear right brake vibrates with every rotation of wheel, IE. the frequency of vibration changes as speed changes (faster for higher speeds slower for lower speeds)
Observations:
feel a vibration and hear a holow metalic thud coming from rear right rotor.
brakes (both rears) were chanegd with good rotors and pads, all brand new.
rotors are NOT warped, no vibration felt in pedal, and also i use a tool called an indicator with a magnetic stand. it showed less than 1/1000 of an inch difference as the rotor turned.. WELL BELOW TOLERANCES
I also miked the rotors thickness to tell if the back of the rotor was varying at all... all results were identicle. these are perfect condition rotors.
so far my attampts at solutions:
removed brakes completely, replaced all components and made sure they were seated properly. everything checked out. put everything back to normal, and added the shims that came with the pads this time. still no luck.
also i remember there beeing small retaining washers on the studs holding teh rotors in place before which i had to destroy in the process of removing the old rotors. i believe these clips were only used for assembly process as to keep the rotor on the car before the wheels could be installed to hold them in place.
has ANYONE ever had this problem? and if so what did you do to remedy it?
any help or sugestions would be greatly appreciated.
if you require any questions or discriptions beyond whats in here please just ask. thanks in advance
Andy
