[Shop-talk] Pulsing brakes

[TR3driver at ca.rr.com (Randall)]

> When I do run out on a rotor, I do both sides of the rotor so 
> I kind of have
> thickness covered, cause I'm going to see some sever run out. 

I dug the book out.  Permissible runout is .003", but thickness variation is
only .0005".  That means you could see only .0003" runout on each side, and
still be out of specification on thickness variation.

Ditto on turning rotors.  In addition, they have so little allowance these
days that it's practically impossible to find a used rotor that is still
thick enough to be turned.

-- Randall