Need some help please Brothers...
Thread Starter
Melting Slicks
Joined: Jan 2008
Posts: 2,620
Likes: 81
From: Florence SC
St. Jude Donor '12
Need some help please Brothers...
Hey there guys, a little question for you all....I am just completing an upgrade to my C5's braking system with new C6 Z51 calipers and Baer Eradispeed rotors. I took her out today to season the rotors and bed in the pads and am very happy with the result. When I first pulled out of the garage I had a few squeekes and a little rubbing sound, thought it was probably just one of the pads dragging a little, figured it would go away after a few applications of the brakes at speed, and it did, however when I got back into my neighborhood I still have a squeek/rubbing sound only at low speed andmostly when I turn. When I speed up or apply the brakes, it goes away. It seems to be coming from the right rear. During this project I did replace the right rear axle half shaft with a new on from Gene and I wouldn't think it was the axle if it goes away when I apply the brakes. I do not see anything from the outside but tomorrow after everything is cooled down good I plan to take off the right rear wheel and give it a good inspection.
Does anybody out there have a similar experience or any advice as to what to check? Thanks in advance, any help will be greatly appreciated!
Jim
Does anybody out there have a similar experience or any advice as to what to check? Thanks in advance, any help will be greatly appreciated!
Jim
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
Hey there guys, a little question for you all....I am just completing an upgrade to my C5's braking system with new C6 Z51 calipers and Baer Eradispeed rotors. I took her out today to season the rotors and bed in the pads and am very happy with the result. When I first pulled out of the garage I had a few squeekes and a little rubbing sound, thought it was probably just one of the pads dragging a little, figured it would go away after a few applications of the brakes at speed, and it did, however when I got back into my neighborhood I still have a squeek/rubbing sound only at low speed andmostly when I turn. When I speed up or apply the brakes, it goes away. It seems to be coming from the right rear. During this project I did replace the right rear axle half shaft with a new on from Gene and I wouldn't think it was the axle if it goes away when I apply the brakes. I do not see anything from the outside but tomorrow after everything is cooled down good I plan to take off the right rear wheel and give it a good inspection.
Does anybody out there have a similar experience or any advice as to what to check? Thanks in advance, any help will be greatly appreciated!
Jim
Does anybody out there have a similar experience or any advice as to what to check? Thanks in advance, any help will be greatly appreciated!
Jim
Jim:
The thing about new pads, and rotors is that they will take some time to bed in. The rotors have a "zinc" coating on them, and maybe that is getting on the pads ? It may take some time for the pads to wear off the zinc coating on the rotors and full bed in. You will notice a lot of brake dust for the first while while the zinc coating wears off. I did for sure.
Could it be your parking brake making contact inside your new rear rotor ? You may want to lift your car (entire rear end)(both back tires off the ground)... release the parking brake, put in neutral. Make sure to put wheel chokes under the front tires.
Try to turn the rear wheel with your hands. You should be able to rather easy. You will hear a little bit of disc brake noise as the pads never really "pull" away from the caliper. I hear my brakes sliding around the rotor a little when I'm cleaning the insides of my CCW's when I have it lifted like that. Good luck !
I hope your just being overly cautious, and its not really an issue at all...
Toque
Thread Starter
Melting Slicks
Joined: Jan 2008
Posts: 2,620
Likes: 81
From: Florence SC
St. Jude Donor '12
Thanks Mark! I will definately give that a try in the morning. And you sure are right about the dust
Kinda makes me regret all the time I spent detailing prior to today. I do expect to hear some noise as the rotor spins between the pads but this is a LOUD rotational squeel only when I am at low speeds and more noticible when I am going around the turns in my neighborhood. It goes away when I apply the brakes or when I speed up. Hopefully it is just the newnest of the pad but I would expect to hear something from more than just one whouldn't you think? I will post what I find tomorrow after I get her up in the air. Thanks again! Anybody else got any ideas?
Kinda makes me regret all the time I spent detailing prior to today. I do expect to hear some noise as the rotor spins between the pads but this is a LOUD rotational squeel only when I am at low speeds and more noticible when I am going around the turns in my neighborhood. It goes away when I apply the brakes or when I speed up. Hopefully it is just the newnest of the pad but I would expect to hear something from more than just one whouldn't you think? I will post what I find tomorrow after I get her up in the air. Thanks again! Anybody else got any ideas?
Team Owner
Joined: Jul 2012
Posts: 34,479
Likes: 532
From: Central PA. - - My AR15 identifies as a muzzleloader
I believe in the Beer Fairy
When I had mine off, one of my rears had that spring that holds the parking brake shoes come off. From then, the shoe was cocked to the side just a bit, and gave me fits getting the rotors on (and off). It was a bit tricky to get that spring to sit just right so I could get the rotors back on, from then on, no more sticking and rubbing. I also adjusted the shoes, but it wasn't that they were too far out, just that spring didn't let the shoes sit straight. The spring pops off real easy, so I'd say to check that.
Thread Starter
Melting Slicks
Joined: Jan 2008
Posts: 2,620
Likes: 81
From: Florence SC
St. Jude Donor '12
Ok...I got her up in the air this morning. The rear wheels do spin freely with the car in neutral and the parking brake off. You can hear a little rubbing as the wheel turns which I expect until the newnest of the pads/rotors wear down. The springs for the parking brakes are in place so I dont think that is the cause and I cannot hear any excessive rubbing around the hub as i turn the wheels. I guess I'll just continue to drive it around and see if it resolves. My rotors do appear to have a nice layer of pad material applied from my bedding them yesterday. Hopefully the squeel I was hearing will go away and I cant wait till the dust dies down...my pads are Hawk ceramics which i bought because of the advertised low dust/low noise. If anybody else has any advice i'd appreciate it I'll keep you guys informed if I find anything else. Thanks!
Jim
I'll keep you guys informed if I find anything else. Thanks!Jim
Le Mans Master
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
I still suspect the parking brake-- Find a parking lot and drive it around to where it sqeaks-then lightly pull on the parking brake to see if the noise "changes" or goes away--If so it's the parking brake--Also check the replaced axle---May be rubbing somewhere on a line or sensor wire while the suspension is traveling
Thread Starter
Melting Slicks
Joined: Jan 2008
Posts: 2,620
Likes: 81
From: Florence SC
St. Jude Donor '12
I still suspect the parking brake-- Find a parking lot and drive it around to where it sqeaks-then lightly pull on the parking brake to see if the noise "changes" or goes away--If so it's the parking brake--Also check the replaced axle---May be rubbing somewhere on a line or sensor wire while the suspension is traveling
My question now is this...It definitely is better today so maybe everything is getting broken in good. It didn't occur as I was applying the brakes so I feel it wasn't the parking brake, although I will keep that in mind. Can a new CV axle take a little time to get broken in ? I only heard the noise today as I was turning withOUT any brakes being applied. Maybe the grease in the axle boot needs some heat to liquefy and fully coat the CV insides? What do you guys think?
Thanks again!
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski