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On 4 Dec 97, Toby Erkson wrote:
> Maybe this swirling is needed on some of these newer cars. The squealing could
> be a side effect of the pad and caliper design that promotes a harmonic. ???
New rotors have a swirl pattern because they're finish ground which
leaves them with that pattern. A proper reground flywheel clutch
face will be done the same way. It has one real advantage in that it
is MUCH smoother and wears away the new brake pad much less.
I don't think the effect on squeal is supportable in light of all the
brakes out there that squeal in spite of the fact that any machining
marks of any kind are long gone.
Jim
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Melissa Kepner Jim Adney
Laura Kepner-Adney
jadney@vwtype3.org
Madison, Wisconsin
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