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#1
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Are brake rotors supposed to spin easily?
A week or so ago I replaced my brake pads. When I spin the rotor, it doesn't spin freely. Looks like the pads are touching the rotor, but not too much that you can't turn them. I forgot to check on how they were with the other old brake pads. Driving, I don't notice a difference from before and now. Also, since currently I am working on lower ball joint, I took the calipers off. The rotor spins freely because of that. So that made me think.
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#2
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It's normal for the brakes to drag a little bit. You should be able to turn the rotor pretty easily by hand, but probably can't spin it more than a fraction of a revolution. Sounds normal.
My $.02 - JimY |
#3
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Thats exactly what I got.. its easy to spin by hand, but it won't keep spinning around.
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#4
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The rotor won't keep spinning when you lift your hand. The mass of the wheel will allow it to spin longer. There should be a drag spec in the manual, and possibly separate specs with and without pads so you can check bearing drag as well. I don't know how it's checked in MBs but for a car I used to have you tie a cable to one lug, wrap it around the other lugs then measure with a spring scale.
Sixto 95 S420 87 300SDL |
#5
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Rotor drag like you are describing is normal for disc brakes. The pads always touch the rotors, causing the slight drag you feel.
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1995 S600, 1 of 618 (sold) "Speed is just a question of money...how fast you wanna go?" LONG LIVE THE W140! Visit my Web Page at www.v12uberalles.com |
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