Miata Mailing List: October 1994, Message #98
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   From: dquara@encore.com (Doug Quara)
Subject: RE: miata stuff
   Date: Thu, 6 Oct 1994 13:12:04 -0400

Tom Reinhardt, On Oct 6, 12:12pm, writes:
> Subject: RE: miata stuff
> 
> Yes, that rust can compromise your rotors.  
> Don't know what could have been done to prevent it;
> hopefully the semi-metalic pads will help for the future.  

Tom tells us about an "imprint" of the brake pads on the rotors.

I don't know if it would make a difference, but since I've been
autocrossing, I've made a habit of not using the emergency brake.

(I heard a long time ago when I started autocrossing at one of
the schools that using the emergency brake on a hot rotor contributes
to warping the rotors; as the rotor cools, the area under the pads
don't cool at the same rate as the rest of the rotor, and it can
warp.)

I only set my e-brake every so often to keep all the cabling
and other moving parts from freezing up (which has also happened to
me, BTW, on one of my cars in the past).

Doug Q.
dquara@encore.com