Brake Squeel...
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,363
From: NE South Carolina
Gald it's working!
Racer
Joined: Jan 2016
Posts: 264
Likes: 168
From: Southern California
Thanks, just got back.
This morning this whole thing was driving me crazy. So, much to my wife's chagrin I jacked up the car and removed both rear wheels. Next:
- Removed the pads
- Sanded with the 150 grit.
- Cleaned with brake cleaner.
- Used "Angle Hair" steel wool on the rotors, worked great.
- Cleaned the rotors with brake cleaner.
- Reapplied the Permatex to the pads using only a thin layer on the back and on both sides.
- Applied Permatex to the pins and reinstalled everything.
- Drove around and seated the brakes using a slower method usually from 45 to about 30 about 6 times. SQUEEL IS GONE!!!
Now I'll drive it a bit and see how it works. Thanks everyone!!!!
This morning this whole thing was driving me crazy. So, much to my wife's chagrin I jacked up the car and removed both rear wheels. Next:
- Removed the pads
- Sanded with the 150 grit.
- Cleaned with brake cleaner.
- Used "Angle Hair" steel wool on the rotors, worked great.
- Cleaned the rotors with brake cleaner.
- Reapplied the Permatex to the pads using only a thin layer on the back and on both sides.
- Applied Permatex to the pins and reinstalled everything.
- Drove around and seated the brakes using a slower method usually from 45 to about 30 about 6 times. SQUEEL IS GONE!!!
Now I'll drive it a bit and see how it works. Thanks everyone!!!!
Please see pic below (an OEM pad from 2016 Corvette Z51 front caliper)...could you please describe where you applied the Permatex lubricant? Blue pen, red pen or screwdriver. Thanks.
Semper Fi
Burning Brakes
Joined: Jul 2013
Posts: 1,147
Likes: 107
From: Cherry Hill PRNJ
Well, all these "fixes" for something that is supposed to be a drop in end of the problem for brake dust are interesting...however, what about "works as advertised?"
I had installed a set of the Carbotech 1521's and they squeeled like hogs being slaughtered! My money was refunded, but not happy with these pads and don't have the time to play around with "fixes"...should work right out of the box....
I had installed a set of the Carbotech 1521's and they squeeled like hogs being slaughtered! My money was refunded, but not happy with these pads and don't have the time to play around with "fixes"...should work right out of the box....
Racer
Joined: Jan 2016
Posts: 264
Likes: 168
From: Southern California
Well, all these "fixes" for something that is supposed to be a drop in end of the problem for brake dust are interesting...however, what about "works as advertised?"
I had installed a set of the Carbotech 1521's and they squeeled like hogs being slaughtered! My money was refunded, but not happy with these pads and don't have the time to play around with "fixes"...should work right out of the box....
I had installed a set of the Carbotech 1521's and they squeeled like hogs being slaughtered! My money was refunded, but not happy with these pads and don't have the time to play around with "fixes"...should work right out of the box....
Mine too...first drive...slow speed to a stop...squealed like a "stuck" pig. Car has ~2000 miles...replaced pads to avoid brake dust, but the squealing is unbearable. Thinking there must be some residual stuff left over from OEM pads. Only happens when the speed is slow...moderate speed to a stop - no squeal.
Any suggestions - anyone?
Thread Starter
Drifting
Joined: May 2002
Posts: 1,546
Likes: 282
From: Back in Nebraska
Greetings,
Mine too...first drive...slow speed to a stop...squealed like a "stuck" pig. Car has ~2000 miles...replaced pads to avoid brake dust, but the squealing is unbearable. Thinking there must be some residual stuff left over from OEM pads. Only happens when the speed is slow...moderate speed to a stop - no squeal.
Any suggestions - anyone?
Mine too...first drive...slow speed to a stop...squealed like a "stuck" pig. Car has ~2000 miles...replaced pads to avoid brake dust, but the squealing is unbearable. Thinking there must be some residual stuff left over from OEM pads. Only happens when the speed is slow...moderate speed to a stop - no squeal.
Any suggestions - anyone?
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 34,950
Likes: 12,363
From: NE South Carolina
Greetings,
Mine too...first drive...slow speed to a stop...squealed like a "stuck" pig. Car has ~2000 miles...replaced pads to avoid brake dust, but the squealing is unbearable. Thinking there must be some residual stuff left over from OEM pads. Only happens when the speed is slow...moderate speed to a stop - no squeal.
Any suggestions - anyone?
Mine too...first drive...slow speed to a stop...squealed like a "stuck" pig. Car has ~2000 miles...replaced pads to avoid brake dust, but the squealing is unbearable. Thinking there must be some residual stuff left over from OEM pads. Only happens when the speed is slow...moderate speed to a stop - no squeal.
Any suggestions - anyone?
Then I bedded the pads. Used the old Carbotech published procedure for 1521's but don't overheat them:
Note Adam recently said Carbotech found users were overheating the 1521 pads when bedding, causing glazing!
They now recommend not to do it. If you have a noise issue, I’d suggest you use this less aggressive procedure they had published previously for 1521 pads.
1. Brake hard from 60mph to 30mph (not 10 to 15 mph used for some race pads.)
2. Let your brakes cool for about 2-3 minutes while driving.
3. Repeat step # 1 about 4 to 5 times.
4. Allow the brake pads and discs to cool down to ambient temperature (driving about 30 minutes without stopping). That is the hardest part of the procedure finding a place to do it! I used a not heavily traveled 4 lane road to do my braking and drove immediately on the Interstate for ~30 minutes to let them cool. Downshifted to use only engine braking for the Interstate entrance.
My OEM pads squealed like a stuck pig at 1000 miles on slow speed stops. I followed the recommendations of being easy on the brakes up to that time.
I then used the procedure outlined in the Owner's Manual to bed the brake pads and rotors for tracking BUT only used ~ 8 to 10 stops NOT the 25 they recommend.
That stopped my squealing with the OEM pads. Switched only because of excess dust. Love the 1521's, should have switched sooner.
Last edited by JerryU; May 11, 2016 at 07:56 AM.
Racer
Joined: Jan 2016
Posts: 264
Likes: 168
From: Southern California
I've had zero noise since I installed my 1521's 1 1/2 yrs ago. My Z51 was one year old when I switched pads. I used Norton 60 grit sanding pads to clean the rotors. Spent only ~10 minutes per rotor so just removed some residual.
Then I bedded the pads. Used the old Carbotech published procedure for 1521's but don't overheat them:
Note Adam recently said Carbotech found users were overheating the 1521 pads when bedding, causing glazing!
They now recommend not to do it. If you have a noise issue, I’d suggest you use this less aggressive procedure they had published previously for 1521 pads.
1. Brake hard from 60mph to 30mph (not 10 to 15 mph used for some race pads.)
2. Let your brakes cool for about 2-3 minutes while driving.
3. Repeat step # 1 about 4 to 5 times.
4. Allow the brake pads and discs to cool down to ambient temperature (driving about 30 minutes without stopping). That is the hardest part of the procedure finding a place to do it! I used a not heaving traveled 4 lane road to do my braking and drove immediately on the Interstate for ~30 minutes to let them cool. Downshifted to use only engine braking for the Interstate entrance.
My OEM pads squealed like a stuck pig at 1000 miles on slow speed stops. I followed the recommendations of being easy on the brakes up to that time.
I used the procedure outlined in the Owner's Manual to bed the brake pads and rotors for tracking BUT only used ~ 8 to 10 stops NOT the 25 they recommend.
That stopped my squealing with the OEM pads. Switched only because of excess dust. Love the 1521's, should have switched sooner.
Then I bedded the pads. Used the old Carbotech published procedure for 1521's but don't overheat them:
Note Adam recently said Carbotech found users were overheating the 1521 pads when bedding, causing glazing!
They now recommend not to do it. If you have a noise issue, I’d suggest you use this less aggressive procedure they had published previously for 1521 pads.
1. Brake hard from 60mph to 30mph (not 10 to 15 mph used for some race pads.)
2. Let your brakes cool for about 2-3 minutes while driving.
3. Repeat step # 1 about 4 to 5 times.
4. Allow the brake pads and discs to cool down to ambient temperature (driving about 30 minutes without stopping). That is the hardest part of the procedure finding a place to do it! I used a not heaving traveled 4 lane road to do my braking and drove immediately on the Interstate for ~30 minutes to let them cool. Downshifted to use only engine braking for the Interstate entrance.
My OEM pads squealed like a stuck pig at 1000 miles on slow speed stops. I followed the recommendations of being easy on the brakes up to that time.
I used the procedure outlined in the Owner's Manual to bed the brake pads and rotors for tracking BUT only used ~ 8 to 10 stops NOT the 25 they recommend.
That stopped my squealing with the OEM pads. Switched only because of excess dust. Love the 1521's, should have switched sooner.
Thanks - I will try it tomorrow...much thanks.
Semper Fi
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Brett Foote
Le Mans Master
Joined: Oct 2005
Posts: 7,002
Likes: 2,679
My 1521's made noise (intermittently at very low creeping speeds while lightly braking) on every car I've ever had. Granted I never use the Permatex or any other like substance. This was on a GTO, C6, and Focus ST. Usually mine it just one of the pads, I'm guessing it's glazed. I always use the old 60 to 30 mph process on my pads.