I'll buy that but the outcome is the same, high and low points. Of course even when they turn them they probably can't tell the difference. It would be like, same poop, different pile to some of them. I'll put this one in my little book of helpful things to know.
I wouldn't know. I haven't had any rotors turned in the last 25 years. Even when I could still find a machine shop to do it, the hassle wouldn't have been worth the few bucks (if any at all) I could save.
They don't.
While that may be true in some instances, I have seen plenty of rotors that are actually warped as a professional automotive tech. In the Honda world the 09-15 pilots and 12-17 odysseys constantly have rotors warping. The exact reason I am unsure, but I speculate it had something to do with the front and rear brakes being undersized for the vehicles. Front's being undersized allowing for a greater build up of heat in the rotors and rears being undersized causing the fronts to work harder. For the odysseys Honda even updated the rotor design for improved cooling.
I don't doubt that both conditions may happen, but as I said, the preferred solution is the same regardless - replacement of the rotors.
Actually they don't, you have removed mass from the rotor with the holes/slots. It's the mass of the rotor that helps absorb and dissipate the generated heat.
What kind of vehicle do you have and what type of driving do you do. There is no need at all for slotted rotors for a standard driver. It is just a "bling" sort of thing for some drivers and since I drive a variety of Jaguars, I have found no need for them. I would spend the money an quality pads like Pagid or the like and that will give you better brake performance.
Rotors do warp... I have resurfaced hundreds of rotors because of warping as a mechanic.
Not trying to start a fight. You're sure that these hundreds are rotors were actually the same thickness face to face at all locations, but 'shifted' forward and back as they went around? They weren't actually thicker in some areas than others?
none of this really answers the person's original question.
All I know is that they were in fact warped and resurfacing them cured their shaky steering wheels while braking afterwards. I've been repairing and maintaining cars and trucks for over 45 years now.
If they were truly warped you would have to take a lot of surface material off and that is the opposite of what one wants with a rotor.
No, but my question was answered a while ago. Now, we're exploring some other side topics.
So you're saying you never measured the thickness of the rotors, you just machined them until the faces were flat? If that's the case, you don't really know if they were warped or just thicker in some areas.
Good for you. Many others could claim the same. That doesn't prove that you're right. Since machining the rotors works for either problem, the fact that maching the rotors resolved the issue is not evidence that your assumption of the cause is correct.
Seriously???
