Rotor Rust
Thread Starter
Instructor
Joined: Jul 2005
Posts: 200
Likes: 0
Rotor Rust
I just installed GM Performance drilled and slotted rotors with GM standard pads. I now have narrow rust rings on the rotors between the outside footprint of the pads and and the painted portion of the hats. I didn't have this with the stock rotors. Any suggestions why this is happening?
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
I just installed GM Performance drilled and slotted rotors with GM standard pads. I now have narrow rust rings on the rotors between the outside footprint of the pads and and the painted portion of the hats. I didn't have this with the stock rotors. Any suggestions why this is happening?
Melting Slicks
Joined: Sep 2007
Posts: 2,599
Likes: 1
From: Long Island, Nassau County New York
Thats why i got rid of my GM rotors...
I just installed GM Performance drilled and slotted rotors with GM standard pads. I now have narrow rust rings on the rotors between the outside footprint of the pads and and the painted portion of the hats. I didn't have this with the stock rotors. Any suggestions why this is happening?
Tech Contributor
Joined: Aug 1999
Posts: 16,376
Likes: 404
From: Should this thoughtful, valuable contribution meet with no acknowledgement or 'thanks' this post----
Fe2O3.....thank Mother Nature...The iron in the casting wants to go back to its original state...google it.
Race Director
Joined: Dec 2000
Posts: 19,304
Likes: 85
From: San Diego CA
These have black e-coating for excellent corrosion protection.
http://www.powerslot.com/power_slot.php
http://www.powerslot.com/power_slot.php
Race Director
Joined: Jun 2007
Posts: 15,615
Likes: 0
From: exactly where i want to be
Cruise-In 9-10 Veteran
St. Jude Donor '08-'09-'10
good luck with that. they are a POS
had my "new" ones for 4 months before i trashed them and got ATE. in that 4 months the rear ones had fused to the parking brake assembly from all of the rust
these are my ATE's. i like them
had my "new" ones for 4 months before i trashed them and got ATE. in that 4 months the rear ones had fused to the parking brake assembly from all of the rust
these are my ATE's. i like them
Thread Starter
Instructor
Joined: Jul 2005
Posts: 200
Likes: 0
I get it that iron rusts. What I don't get is that the hats are painted but the pads are 1/2" away from the hats, leaving a ring of rust between them. My original factory rotors did not have this problem. It's almost as if the pads are set too far away from the edge of the hats on the rotors.
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Safety Car
Joined: Jun 2004
Posts: 4,983
Likes: 391
From: Stoney Creek Ontario
I have the same rotors, GMPP drilled/slotted, I like the way they look when they're clean, and I like the way they work, but they look like a POS when they get wet.... I ended up taking them off and painting where I could, and on the fronts I even sprayed inside the vents, also painted the edges on the rears.... no issues now, no brake dust at all with the pads I'm using, but next time around I'll buy something else - won't buy these rotors again...
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Last edited by dankhts; Dec 9, 2010 at 10:56 AM.
Thread Starter
Instructor
Joined: Jul 2005
Posts: 200
Likes: 0
I have the same rotors, GMPP drilled/slotted, I like the way they look when they're clean, and I like the way they work, but they look like a POS when they get wet.... I ended up taking them off and painting where I could, and on the fronts I even sprayed inside the vents, also painted the edges on the rears.... no issues now, no brake dust at all with the pads I'm using, but next time around I'll buy something else - won't buy these rotors again...
[IMG][/IMG]
[IMG]
[/IMG]I was wondering what pads you were using and perhaps that's why the pads seem to be covering more of the rotor surface.
Safety Car
Joined: Jun 2004
Posts: 4,983
Likes: 391
From: Stoney Creek Ontario
I'm using GMPP slotted/drilled pads/rotors, and GMPP ceramic pads.... I over painted the rotors past the area where the pads wipe, and 1st brake application cleaned them up nicely to the painted area... they still hold up good,
Race Director
Joined: Jan 2007
Posts: 18,643
Likes: 14
From: Norman Oklahoma - The Only State in the Union with no Blue Counties!
Installing the same rotors in the morning with Hawk HPS pads,,,Overspraying rotors with two coats 1/2 hour apart with 400 High Heat Rustoleum,,,hoping for good results,,,last time the rust stayed away for three years!
Racer
Joined: Apr 2008
Posts: 326
Likes: 23
From: Ohio
I have the same problem, but I noticed the rust band is getting narrower the more I drive the car, and in fact is almost gone on the front rotors. I wonder if it is because the pads are slowly getting broken in. I only have about a thousand road miles since I installed the new rotors and pads. I don't use the brakes as much as city drivers since I live in the country and do most of my driving there.
