I tried and failed to take descriptive photos of my rear discs, whose
friction surfaces resemble the dark gray coating worn by a rifle barrel.
The fronts had patchy glaze, where the outline of the pads was imprinted
over and over again in an irregular pattern around the disc, some lighter,
I had some serious front brake vibration. A check with a dial gauge showed
the discs to be dead true, and yet I had a high-speed vibration. The only
conclusion I can come to at this point (surely to be opposed by some
others...) is that the glaze caused sufficient frictional differences as to
cause steering wheel wobble ("vibration").
I remember years ago when a friend had an obvious rotor pulse.
Machining the rotors made no difference. Changing pads and replacing
rotors still made no difference.
The whole problem disapeared when he bought a new set of tires...
(Who thinks gearheading leads to unbalanced thinking...sometimes.)
What components do you put the anti-seize on? I only put this on the
two caliper bolts. For the shims of the brake pads I only use the
Molykote which is supplied with the OEM pads. I have yet to have this
happen on my rotors and they have 116k miles on them.
Really? I wonder why? In sixteen years I've never had a problem with
removing the bolts from the pins. Usually the problem is removing the pins
from the pad mount bracket, that being unrelated to the use of anti-seize.
Anti-seizes are petroleum-based and will rot your rubber pin boots.
I only apply it to the threaded section of the bolt and even then it
is just a thin layer, besides even if they rot, they cost so little
and are easy to replace. I will keep in in mind.
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