Hairline cracks on rear brake pads - Suspension and Brake Forum

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Hairline cracks on rear brake pads
Friday, October 03, 2008 3:52 AM
The car is an 04 cav with stock brakes except for SS brake lines. I had the car in for state inspection at ~47000miles. I expected it to pass with flying colors, but the service manager told me there were hairline cracks on the rear pads and they fail. I had a look and sure enough they were there.

My question is what would cause that? Abuse? Dragging the brakes? I'm the second owner of the car (since about 22k miles and over a year). My 02 cav went 110k miles on the original rear brakes, so i'm kind of wondering if the previous owner abused the ebrake or was careless with the brakes.

I'm also wondering how bad the cracks really are...we all know the rear brakes are not where most of our stopping power is anyways.




Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 8:42 AM
They will probably perform the same as non cracked pads.....that is until they possibly break apart. They could have cracked for a number of reasons, but its some kind of stress. either abuse, or overheating, or anything else that causes stress.
Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 9:21 AM
probably just @!#$y shoes


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Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 2:15 PM
Seen it many times on many cars. It's usually from a build-up of heat like slamming on the brakes to stop at a light and then not releasing the brakes to let them cool. Shouldn't be a major issue though....the ones on my Cav have been like that since the first rebuild session and they've stopped me fine at the track over 300 times.



I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 2:30 PM
All the neon swaps I did had the shoe pad material cracked. Surprisingly I could not get it to flake off.



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- Sold my beloved J in April 2010 -
Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 3:41 PM
Hypsy (TRU TurboSport Cav) wrote:Seen it many times on many cars. It's usually from a build-up of heat like slamming on the brakes to stop at a light and then not releasing the brakes to let them cool. Shouldn't be a major issue though....the ones on my Cav have been like that since the first rebuild session and they've stopped me fine at the track over 300 times.


Yea i wish i could have explained that to the mechanic - they would have failed it. I'm guessing the previous owner was hard on the brakes - i barely use them, i downshift/rev match usually all the way down to second gear. and most of my commute is highway/cruising.

Instead i got screwed to the tune of 85 dollar/hour flat rate...I'm shopping around for a more "lax" shop next time.



Re: Hairline cracks on rear brake pads
Friday, October 03, 2008 3:50 PM
I'm glad I don't have any inspections other than when I take the car to the State Police and ask them to look it over and make sure it's ok so that it gets noted in their database as a legal car LOL. They don't really look too hard.



I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
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