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Anyone had issues with the drilled holes on the brake discs filling up with pad material? I'm all of a sudden having this issue and think it could be the reason why i'm suffering from vibration through the steering wheel under braking, especially light city driving.
I've put new standard pads in and it solved the vibration but as the pads are bedding in after about 300 miles i'm getting the odd vibration and notice the dust starting to fill up again- I suspect the vibration is the sensation of the old pad material out of the holes contamination the brake surface.
Or they could be warped.....
Its done 9k from new, and just back from a trip to the Nurburgring. It had a gentle time on the ring, but numerous 150mph heavy brake applications.....
__________________
2007 2.7 Cayman, Guards Red
North West, United Kingdom.
Did you turn your rotors or get new rotors when you changed pads? If not, your new pads will not mate perfectly with old rotors and you may be experiencing some slight vibration from there.
Or yes, you could have warped them at the 'ring too.
__________________ Nov 16, 2007 build:
'08 CS Midnight blue metallic--6 spd
Black sport seats, Delete model designation
Fire extinguisher,Floor mats, Sport steering wheel
I would think that you would get a vibration from the rotors being warped versus pad material getting into the venting holes. However, I would also check to make sure that your pads were flush with the rotors.
Did you turn your rotors or get new rotors when you changed pads? If not, your new pads will not mate perfectly with old rotors and you may be experiencing some slight vibration from there.
Or yes, you could have warped them at the 'ring too.
The plugged rotor holes may not be causing the vibration, but whatever it is that the holes are supposed to do, they can't do it plugged up with brake pad dust. It's an easy, if somewhat time consuming, job to unplug them with the proper sized drill bit. Remove wheel, place newspaper under rotor, and push the drill bit through every stinking hole. I've done it several times after track events, and think I have almost enough dust plugs to make another set of front pads.
I am not an expert but i wouldn't think you warped your rotors.. and if you did then you would surely see some serious discoloration on the rotors (purplish discoloration i believe). I had turned my rotors purple after the first 10k of driving. There were cracks forming around the holes in the rotor. More likely pad material transferred unevenly to the rotors (still left over from last time). I.E. the metal isn't warped but the material that has melted on to the rotors is not "even" so it gives you the same feeling.
You can also try "re-bedding" the break pads. Do 10 or so stops from 60-5mph (do not stop the car completely) in a row (w/o letting the breaks cool in between). Try to stop as aggressively as possible w/o having the abs kick in. After the tenth or so stop, drive as fast as you can (safely) for as long as you can w/o using the breaks, to let them cool. This should help evenly melt the pad material of your new brakes onto the rotors.. if this doesnt work then you probably just need to toss the rotors.
Linear Mode
