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brake disc question

4 posts in this topic

Posted · Report post

I have been using some hard brake pads Endless ccrg, great stopping power, but it create a hell lot of squeaking noise when it comes to near stop, therefore I swap back to sometime less hardcore for daily nismo sturn.

After I had a car wash this afternoon, I found the brake disc look like this (refer to the picture),

I try to touch it with my finger but can not feel it is rough (maybe my finger is rough <_< ).

I guess it may cause by the ccrg pads, do I need to machine the disc?

Does it look like some sort of problem to you guy?

by the way four of the disc look similar.

post-1034-0-13332300-1332077412_thumb.jp

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Posted · Report post

Your rotors could be warped. Are they the OEM ones?

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Posted · Report post

If the car still stops OK, I'd not be too stressed. If you have recently changed the pads, then the new (old) pads may need to bed into the rotors again because your aggressive pads had a sligtly different wear pattern.

You can tell if the dsk is warped as the brake pedal will pulsate under your foot on firm (but not maximum braking which would trigger ABS) braking and you;ll also get a shake in the steering wheel - if none of these exist, most likely you will not require rotor machining.

It looks to me like your aggressice pads have worn more in the centre of the rotor and the old pads you;ve put back in have a lsightly different wear pattern.

Like I said - if the car stops OK - give it a few days and the whole rotor surface should be shiny. If not, you need to pull the pads out and make sure the enire pad surface is contacting the rotor swept area - you may need to "dress" the pad surface a little to make sure it is competely uniform and flat.

RB

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Posted · Report post

thanks for the replies

I will give it a few more days for the brake and see how it goes.

there is no vibration when I step the brake hard, i assume the disc is alright

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