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Old 05-06-2006, 12:41 PM
Ron (Canada) Ron (Canada) is offline
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Join Date: Sep 2005
Posts: 71
Rotors do fail invisibly

Quote:
Originally Posted by DonB
OK, I got the parts from *************** and did the rear brakes:


ATE N1040-110890 Brake Caliper 81.25
ATE N1040-110891 Brake Caliper 79.85
FTE N7000-98698 Brake Hose 20.14
CFW N7000-98698 Brake Hose 25.75
BAL N1000-54215 (2) - Brake Disc 66.72
PBR N1010-113300 Brake Pad Set Deluxe 45.19

The pulsation was significantly improved, but I still get a nasty pulsation when I hit the brakes at freeway speeds and some in normal around town driving, mostly from the front. I'm going to get the front rotors turned today, but I don't know if that will help. Anyone have any other suggestion? Thanks,

Don
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Hi Don,

A problem can occur with rotors that does not even show up when they are cold..
The two layers are separated by a series of internal fins (web) which can crack internally due to repeated hard braking which causes heating and cooling.. This cause the braking surfaces
to have bulging separated by thin spots. Often it is only one side that fails in this way..

You could try a new rotor on the side to which the car DOES pull to save money, but the other one might also cause trouble later. it could also be twice the labour to move the new rotor
while trying to figure out which is the bad side.

Good luck..
Ron
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