Grooves in Rotors- what does it mean?
07-20-2004, 01:42 PM
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Grooves in Rotors- what does it mean? I've probably done 20 track runs in the past few months and noticed I now have grooves in all four rotors that look like the edge of a fingernail.My car has 50,000 miles on it. In the front I have new pads and resurfaced rotors with only 3,000 miles. The rear has original stock pads and I think the rotors may have been resurfaced when the front were done. The passenger side rear brake seems to have a squeak but the other rear brake doesn't. I don't know if this info helps but what do these grooves in the rotors mean and what should I do about them?
07-20-2004, 02:33 PM
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If the grooves ore on the inside of the rotor(side facing vehicle) it usually means a caliper hanging up. It could also be the hardware(mounting bolts) are worn or not snug enough, which lets the caliper "move" on the rotor hitting it at an angle. How is the wear pattern on your pads?
07-23-2004, 08:59 AM
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It depends on how deep they are. If there is enough material after the grooves are removed, you're cool.
What I do for brakes is replace the rotors, then have the old pair turned. When I go to do the brakes again, I used the turned rotors and have the other set turned. This way, I always have a "fresh" set of rotors.
-Mike
What I do for brakes is replace the rotors, then have the old pair turned. When I go to do the brakes again, I used the turned rotors and have the other set turned. This way, I always have a "fresh" set of rotors.
-Mike
07-26-2004, 05:50 PM
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Yes. This ritual isn't a performance thing, it's a convenience thing. Since I have a set of rotors ready to put on, I don't have to wait on a shop to turn them. I can take the old set off and get them machined at my convenience, rather than being without a car for several hours.
-Mike
-Mike
