New Pads: Resurface or replace rotors ?!
05-25-2008, 10:12 AM
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05-25-2008, 02:47 PM
#17
Racer
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05-25-2008, 04:55 PM
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05-26-2008, 12:06 AM
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Since the 356 Porsche always recommended replacing the pads without touching the rotors unless you had metal to metal contact, excessive runout, crack or excess grooving. As long as the disk is a servicable thickness you are only reducing the useful life of the disk.
Most brake shops will automatically surface your disks just to make it easy, and to make sure there is no callback, but it's just easy for them, plus they get to sell you new rotors. Half of the time they will replace a disk that is still serviceable uncut but would be too thin after its cut.
If you had shudder or brake pulsation, however, then you would want to check for runout or cupping and replace the rotors on that end of the car, that is a condition that will just get worse.
Most brake shops will automatically surface your disks just to make it easy, and to make sure there is no callback, but it's just easy for them, plus they get to sell you new rotors. Half of the time they will replace a disk that is still serviceable uncut but would be too thin after its cut.
If you had shudder or brake pulsation, however, then you would want to check for runout or cupping and replace the rotors on that end of the car, that is a condition that will just get worse.
