Lateral Runout or "Why rust on hubs/rotors is bad" - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

intensifi · 11-05-2014, 08:31 PM

I was having vibration through the pedal (and rear view mirror) when braking from 45mph through 39mph.

I tried re-bedding the pads. That helped a bit. But it did not go away.

I read the updated installation instructions GM posted for the SS Brembo upgrade kit. They made particular mention of thoroughly cleaning the rust off the hubs when upgrading/changing rotors to avoid lateral runout - which causes vibration.

So when I replaced my Brembo calipers yesterday, I spent a lot of time cleaning the hubs & rotors. After the re-install of the rear rotor/caliper set, the vibration problem was gone on the road test.

The moral of the story: Rust on the hubs and rotors is bad.

I learned today there is a kit to attach to a drill to clean the rust off. I wish I'd have had one yesterday. I went through a lot of wire brushes and steel wool!

KaBoom1701 · 11-06-2014, 09:13 AM

Got a link for the cleaning kit?

intensifi · 11-06-2014, 10:42 AM

Quote:

Originally Posted by KaBoom1701

Got a link for the cleaning kit?

http://3mcollision.com/scotch-brite-...kit-07547.html

KaBoom1701 · 11-06-2014, 11:16 AM

Quote:

Originally Posted by intensifi

http://3mcollision.com/scotch-brite-...kit-07547.html

Thx

Not bad for around $35.

I'll use this next time I swap out rotors.

I beat most peeps miss this step and complain about brake vibrations...

intensifi · 11-10-2014, 08:00 PM

Quote:

Originally Posted by KaBoom1701

Thx
I bet most peeps miss this step and complain about brake vibrations...

Yep. I was one of them.

11-05-2014, 08:31 PM	#1
intensifi Drives: '12 2LT Convertible Join Date: Mar 2012 Location: Belmont, California Posts: 1,701	Lateral Runout or "Why rust on hubs/rotors is bad" I was having vibration through the pedal (and rear view mirror) when braking from 45mph through 39mph. I tried re-bedding the pads. That helped a bit. But it did not go away. I read the updated installation instructions GM posted for the SS Brembo upgrade kit. They made particular mention of thoroughly cleaning the rust off the hubs when upgrading/changing rotors to avoid lateral runout - which causes vibration. So when I replaced my Brembo calipers yesterday, I spent a lot of time cleaning the hubs & rotors. After the re-install of the rear rotor/caliper set, the vibration problem was gone on the road test. The moral of the story: Rust on the hubs and rotors is bad. I learned today there is a kit to attach to a drill to clean the rust off. I wish I'd have had one yesterday. I went through a lot of wire brushes and steel wool! __________________ Mods: GM Locking Gas Cap, RS License Plate Frame, SS Brembos, ZL1 FrontEnd, 14/15 Convertible Top Last edited by intensifi; 11-09-2014 at 11:14 AM.

11-06-2014, 09:13 AM	#2
KaBoom1701 KaBoom1701 Drives: 13' ZL1 Red M6 Join Date: Dec 2012 Location: I.E. SoCal (Yucaipa) Posts: 8,631	Got a link for the cleaning kit? __________________ Mods: Roto-Fab Intake, WW Res. kit & Big Gulp Air Scoop, Elite Catch Can, ATI Super Damper & 18% OD Pulley, LF Idler pulley bracket, Metco CC breather, ID850 Injectors, Stainless Power Headers w/ ceramic coating, TR71X Spark Plugs, JMS Fuel Pump Booster, Bo White TB, Tuned by Ted @ Jannetty Racing, Ron Davis HX, D3 Reservoir, Pfadt 1" Springs, Moreno Camber Plates, ZL1 Addons Splitter guard washers, Tow Hook kit & rock guards, Hurst Shifter Billet Plus 6 Speed Short Shifter, ZL1 DRL lighting harness, ZL1 Recaro Seats.