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Hey - I’m new to the forum so I’ll probably mess up this post. Got a question on new rotor replacement. I have the ZO7 package , 17 grand sport. Big carbon ceramics , only 10k mi and had small cracks in the rotors . Dealer replaced under warranty , that was great. Brought the car home and looked at the rotors , noticed the holes in the rotors were not clean holes but already had that thick crust, dust in the holes. Shouldn’t new rotors have clean holes ? I always hit the rotors with water pressure and cleaned rotor holes monthly, keeping them from clogging up. Need advice please. TY.
Hey - I’m new to the forum so I’ll probably mess up this post. Got a question on new rotor replacement. I have the ZO7 package , 17 grand sport. Big carbon ceramics , only 10k mi and had small cracks in the rotors . Dealer replaced under warranty , that was great. Brought the car home and looked at the rotors , noticed the holes in the rotors were not clean holes but already had that thick crust, dust in the holes. Shouldn’t new rotors have clean holes ? I always hit the rotors with water pressure and cleaned rotor holes monthly, keeping them from clogging up. Need advice please. TY.
I don't think you have anything to worry about. Not sure how long it takes for the dust to build up but it isn't long.
I have a 2017 GS w/Z07 CCB. I have never noticed any stuff in the holes. I show my car and always keep it very clean, but I doubt I would ever clean the little holes in my rotors.
I have around 3500 miles on mine and I have never noticed any actual dust build up in the holes but I have noticed a few of the holes have chipped sides. Not really that bad but not sure if maybe some sand or a small rock got caught in the hole at some point. That said when I first saw it I thought it was dust in the hole. Maybe Bill Dearborn might be able to shed some light on this.....thanks in advance Bill.
Sorry first time uploading some pictures....not the clearest!!!!
Carbon ceramic rotors C7
