problem with my brake discs :(

[inexplicable]

Hi everyone from Russia, Moscow.
I have own my civic at November of 2006.
And now i have a trouble with my brake discs.
they was very warm and now it's looks like VERY DARK BLUE metal
And when i'm braking from 100 mph i'm feeling some vibration and very bad sounds from my wheels.
A have the 1.8 liters engine, 4dr sedan. What can i bye to remove my stock brake discs and pads without changing something, only front brake discs and pads?

thanks a lot for your help!

[yuning83]

I bet you were braking on a rough road. We get those wierd vibration and sound when we break on an road with bumps too. It's normal. Some says it's the ABS doing its job.

If it's the ABS, I don't think replacing your brakes would make it go away.

[Englishe30]

ooo I hate that abs fealing...

[CZ-75]

You ruined your front rotors and pads most likely. Iron turns blue if it gets very hot.

New rotors, better brake pads and flushing your brake fluid and replacing it with the equivalent of DOT4 would be in order. Also, getting brakes that hot can and will damage the rubber dust seals on the calipers.

[truflip]

Iron turns blue when its hot? I've only seem them go orange but whatever.
Russian friend, make sure its not the ABS kicking in, check to see if your wheels are balanced, make sure the rotors are not warped.

Otherwise, you can buy and change just the brake disc and pads only

[Highrev1]

Originally Posted by truflip

make sure the rotors are not warped.

Warped rotors is a mis nomer....Heating a rotor to where it gets bent/warped on the street is near impossible. What the real issue is is probably uneven build up on the rotor surface of pad material. This will translate into thte pedal as a pulsation making the feeling like a warped rotor...Rotors are made of cast iron which are designed to withstand temps wel in excess of 1000 degress.

[inexplicable]

no no, this is not the ABS :)
This is real trouble with my brake disc :)
What can you adwise me?

[tommyroo]

Originally Posted by Highrev1

Warped rotors is a mis nomer....Heating a rotor to where it gets bent/warped on the street is near impossible. What the real issue is is probably uneven build up on the rotor surface of pad material. This will translate into thte pedal as a pulsation making the feeling like a warped rotor...Rotors are made of cast iron which are designed to withstand temps wel in excess of 1000 degress.

I've always heard if you apply your parking brake after you have done a lot of extreme braking warping can occur. True or another mis nomer?

[truflip]

Thanks Highrev1. I made a booboo! You frikkin car genius!

[Vince]

Originally Posted by CZ-75

You ruined your front rotors and pads most likely. Iron turns blue if it gets very hot.

New rotors, better brake pads and flushing your brake fluid and replacing it with the equivalent of DOT4 would be in order. Also, getting brakes that hot can and will damage the rubber dust seals on the calipers.

Yep, ruined the rotors, most likely.

[Highrev1]

Originally Posted by tommyroo

I've always heard if you apply your parking brake after you have done a lot of extreme braking warping can occur. True or another mis nomer?

No problem FLIP my pleasure

Its not warping really its pad transfer, for example if you drive hard and then stop at a light and hold down on the brakes pad material can transfer to the rotor causing a warped feeling.

As for the parking brake it isn't suggested to use after heavy hard driving/braking. It can trap heat into the rear rotors, which can cause cracking and possible damage to rubber boots and hats.

[J-Ro]

Originally Posted by truflip

Iron turns blue when its hot? I've only seem them go orange but whatever.

Not to totally hijack the thread, but you're thinking of when it glows... CZ-75 is talking about the colour that iron/steel takes on when there is heat damage... it happens most when machining steel... the more heat damage that the metal experiences, it will go from normal metal colour, to amber, to blue, to purple, then black.

[truflip]

^^ This thread is educating me more than the OP!!!! LOL. Thanks Jason!

[CZ-75]

Originally Posted by truflip

Iron turns blue when its hot? I've only seem them go orange but whatever.
Russian friend, make sure its not the ABS kicking in, check to see if your wheels are balanced, make sure the rotors are not warped.

Otherwise, you can buy and change just the brake disc and pads only

Your question has been answered, but suffice it to say that if you heat your rotors up that much, you will transfer heat into the calipers and damage dust seals by causing the rubber to get brittle and crumble. If the rubber got that hot, so did the fluid. Bleed it, or better yet, flush and replace with something better than OEM DOT3 that has a higher boiling point, DOT4 or 5.1.

[CZ-75]

Originally Posted by inexplicable

no no, this is not the ABS :)
This is real trouble with my brake disc :)
What can you adwise me?

Yes. Replace the disc, replace the pads and replace the fluid. Cast iron discs can withstand being that hot for a certain time, with proper break-in, but they can also stress crack and the best way to tell this is happening is if the surface has heat checking that looks like Japanese Raku pottery:



High quality rotors + pads that can take 500 degrees C before they melt and smear over the face of the rotors, causing Disc Thickness Variation (DTV, aka "warpage"). You get the rotors and pads that hot and you'd be smart to pick better brake fluid and replace what you've gotten hot in the caliper piston.

[inexplicable]

So, thanks a lot.
But, which brand can you advice me to purchase? Disc and pads, with my stock calipers and rotors and so on, just to remove my stock disc and pads without changing anything else?

[tonton]

BREMBO! :P This usually happens when you pour liquid on the rotors when they are burning hot (car wash for example).

[CZ-75]

Brembo rotors with Ferodo DS2500 pads. Pagid Black would be good also. Both are EU companies. The very least you'd want would be EBC Green, which are made in the UK. Personally, I don't like them, but they will be better than OEM.