Originally Posted by Meander
" Over tightening is a cause of rotor "warping".
How so If I may ask ?[/QUOTE]
IMO..."over tightening" the nuts only does damage to the nuts and threads on the studs. Now....uneven torque on the nuts is what can cause rotors to warp, also thin rotors from pad wear, poor quality metal used to make the rotors , excessive heat, etc. Thicker high quality metal is what protects the rotors from warping ...... That's why you can buy the same rotor for $100 or one for $25......there is a difference.
Years ago it was common for rotors to be "turned" to get a nice gritty surface for your new pads to contact. Now since the rotors come much thinner and made with lower quality metal , they don't last very long and are usually fairly inexpensive to replace. I was surprised to hear that most of the auto stores and local garages around here don't even have the machine to turn the rotors anymore (at least that's what they told me) They said people would rather replace them now....
I don't believe the article that says warped rotors are a myth......