|
Somatic Negative Optimist
Join Date: Mar 2002
Location: Winlaw, BC, Canada
Posts: 7,206
|
Exactly. The pads can only be pulled away from the rotor if they have a connection to the pistons when they retract. That connection is the special goop that comes with some brake pads/shims.
When the pistons are frozen, that mechanism doesn't work.
Various manufacturers like Girling, ATE, etc. have experimented in different ways to elimminate squeal with some success. (Anti-squeal shims, goop)
Squealing happens when the pads vibrate between rotor and piston; it's not destructive.
__________________
1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD!
1995 seafoam-green 993 C2, LSD, Sport seats. 
Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
|