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Old 08-13-2009, 02:43 PM
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Bedding brakes

taken from www.zeckhausen.com/bedding_in_brakes.htm

a few different forums link/quote this site


Bedding allows your brakes to reach their full potential. Until they are bedded, your brakes simply do not work as well as they can. If you've installed a big brake kit, changed your pads and rotors, or even if you've purchased a brand new car, you should set aside some time to bed the brakes in by following the instructions below. Proper bedding will improve pedal feel, reduce or eliminate brake squeal, and extend the life of your pads and rotors. For more on the theory of bedding, please refer to this excellent article by StopTech: Removing the Mystery from Brake Pad Bed-In.
Caution: After installing new pads/rotors or a big brake kit, the first few applications of the brake pedal will result in almost no braking power. Gently apply the brakes a few times at low speed in order to build up some grip before blasting down the road at high speed. Otherwise, you may be in for a nasty surprise the first time you hit the brakes at 60 mph.
If you have just installed rotors with zinc or cadmium plating, or if the rotors have an anti-corrosion phosphate coating, you should postpone the bedding process until normal driving has allowed your brake pads to polish the rotors clean and removed all traces of the plating or coating.
Read and understand these instructions completely before starting. If you have any questions, give us a call or email. Do not substitute higher speeds for the 60mph called for in these instructions. The heat in your brakes goes up exponentially as you increase the speed from which you brake. If you make repeated stops from 80 or 90mph with street pads, you will overheat the brakes and may end up having to replace pads and/or rotors.
When following these instructions, avoid other vehicles. Bedding is often best done early in the morning, when traffic is light, since other drivers will have no idea what you are up to and will respond in a variety of ways ranging from fear to curiosity to aggression. A police officer will probably not understand when you try to explain why you were driving erratically! Zeckhausen Racing does not endorse speeding on public roads and takes no responsibility for any injuries or tickets you may receive while following these instructions.
  1. From a speed of 60mph, gently apply the brakes a couple of times to bring them up to operating temperature. This prevents you from thermally shocking the rotors and pads in the next steps.
  2. Make a series of eight near-stops from 60 to about 10 mph. Do it HARD by pressing the brakes firmly, but do not lock the wheels or engage ABS. At the end of each slowdown, immediately accelerate back to 60mph and then apply the brakes again. DO NOT COME TO A COMPLETE STOP! If you stop completely and sit there with your foot on the brake pedal, you will imprint pad material onto the hot rotors, which could lead to vibration, uneven braking, and even ruin the rotors.
  3. The brakes may begin to fade after the 7th or 8th near-stop. This fade will stabilize, but not completely go away until the brakes have fully cooled. A strong smell from the brakes, and even smoke, is normal.
  4. After the 8th near-stop, accelerate back up to speed and cruise for a while, using the brakes as little as possible. The brakes need about 5 minutes to cool down. Try not to become trapped in traffic or come to a complete stop while the brakes are still very hot.
  5. If race pads, such as Hawk DTC-70 or Performance Friction 01 are being used, add four near-stops from 80 to 10mph.
  6. After the break-in cycle, there should be a slight blue tint and a light gray film on the rotor face. The blue tint tells you the rotor has reached break-in temperature and the gray film is pad material starting to transfer onto the rotor face. This is what you are looking for. The best braking occurs when there is an even layer of of pad material deposited across the face of the rotors. This minimizes squealing, increases braking torque, and maximizes pad and rotor life.
  7. After the first break in cycle shown above, the brakes may still not be fully broken in. A second bed-in cycle, AFTER the brakes have cooled down fully from the first cycle, may be necessary before the brakes really start to perform well. This is especially true if you have installed new pads on old rotors. If you've just installed a big brake kit, the pedal travel may not feel as firm as you expected. After the second cycle, the pedal will become noticeably firmer. If necessary, bleed the brakes to improve pedal firmness.
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Old 08-13-2009, 03:04 PM
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Re: Bedding brakes

don't you mean " bleeding " the brakes...
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Old 08-13-2009, 03:06 PM
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Re: Bedding brakes

Great info there. It's not hard at all to do, just finding a place with a lack of traffic is the hard part.

---------- Post added at 04:06 PM ---------- Previous post was at 04:06 PM ----------

Quote:
Originally Posted by Dylans3960ccs View Post
don't you mean " bleeding " the brakes...
No. It's bedding the pads. Completely different from bleeding.
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Old 08-13-2009, 03:08 PM
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Re: Bedding brakes

no he doesnt........

read before commenting please

---------- Post added at 04:08 PM ---------- Previous post was at 04:07 PM ----------

Quote:
Originally Posted by Dylans3960ccs View Post
don't you mean " bleeding " the brakes...
arghhhhh
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Old 08-13-2009, 03:10 PM
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Re: Bedding brakes





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Old 08-13-2009, 03:12 PM
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Re: Bedding brakes

well at least I'm not going to argue about it.
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Old 08-13-2009, 03:37 PM
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Re: Bedding brakes

Thanks alot for posting this, i have always wondered what the proper method of doing this is. I will do this once i get my R1 pads and rotors.
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Old 08-13-2009, 03:37 PM
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Re: Bedding brakes

no prob! glad to help!!! joe gave me the idea when he texted me today
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Old 08-13-2009, 05:35 PM
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Re: Bedding brakes

i did this with the EBCs in my WJ and it worked pretty good, and then my step dad put new "ceramic" brake pads on his YJ (wrangler) and i told him not to forget to bed them and to read up on the webnets about it, but he didnt read and just did and not is complaining to me that he "glazed" his brakes because they "over heat to quickly now" ??? this are exact quotes.. he says when he did it it smelled like burning brakes and i said that was normal and he was saying that hes never heard of bedding in and now he has to buy new rotors and blah blah..
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Old 08-13-2009, 05:59 PM
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Re: Bedding brakes

I'll say I don't entirely agree with the info posted.
Bedding ROAD car brakes in such a harsh manner will often cause glazing and rotor warpage. Especially in an SUV where the brakes are often under-done size wise.
I'd recommend simply a couple of brisk near stops from around 40mph and then drive quite sensibly for the next 50 miles or so. After that, it's up to you.
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Old 08-13-2009, 09:22 PM
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Re: Bedding brakes

guess it's too pate to do this at 7k miles. If I change my pads should I do this?
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Old 11-30-2011, 05:10 PM
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Re: Bedding brakes

jsut wanted to give this a bump. also i researched and agree with ben if you are using reg street brakes you dont have to go from 60-5 40mph to 5mph will be enough. i just did my brakes and bedded them so wanted to give it a bump
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