Anyone noticing grooves like this in their rotor?
07-29-08, 05:22 PM
#46
Tech Info Resource
iTrader: (2)
your rotor is how mine use to looks like... i quess i didnt bed in my brakes properly can you please explain how you did it???
eg:i found a long, fairly straight section of road where you can safely
travel about 35 MPH. Select a gear which is about halfway to redline. Drag
your brake (do the front and rear separately) as you apply throttle. Keep
doing this until you feel the brakes start to fade. You'll probably smell
them about this time too.
eg:i found a long, fairly straight section of road where you can safely
travel about 35 MPH. Select a gear which is about halfway to redline. Drag
your brake (do the front and rear separately) as you apply throttle. Keep
doing this until you feel the brakes start to fade. You'll probably smell
them about this time too.
07-29-08, 11:10 PM
#47
Lexus Champion
Thread Starter
Got the new pads from the dealer, but current rotors just cut down a bit from 29.5mm to 28.5mm Dealer says 27mm is the minimum allowed before required replacement. Dealer says I don't need to do the 60mph to 5mph 10 consecutive stops, but do you guys still recommend it?
07-30-08, 11:53 AM
#48
Tech Info Resource
iTrader: (2)
Without hesitation.
07-30-08, 11:17 PM
#49
Lexus Champion
Thread Starter
Any worries about doing more damage than good? My fear is it won't be hot enough to actually seat, and I'll have done nothing more than worn down the pads/rotors, even here, they say you've gotta be pretty accurate:
http://www.stoptech.com/tech_info/wp_bedinstock.shtml
http://www.stoptech.com/tech_info/wp_bedinstock.shtml
07-31-08, 04:05 PM
#50
Tech Info Resource
iTrader: (2)
09-22-08, 05:42 PM
#51
er i still got a bad groove in the middle of my rotor after i bed them in... any one have an idea of whats going on and why it has that groove??? any comments are welcome.
Last edited by i3urton; 09-23-08 at 06:21 PM.
10-03-08, 02:04 PM
#53
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All brake rotors will look like this, as has been said earlier. They are only perfectly smooth when new. Unless the grooves are really deep which indicates something got between the pad and the rotor, they are really going to be ok. Hitting the brakes hard, has nothing to do with this. Some rotors are grooved more than others. I have 4 different vehicles here and they all have different aspects of grooving in them.
It used to be, when you did a brake job, they put the rotors in a lathe and smoothed out all the grooves so that the new pads would start on a smooth surface and bed in together correctly. I guess if the dealer wants to GIVE you free new rotors, take them, but I dont see how this would happen, unless your rotors, caliper piston, or pads are defective.
DanF
It used to be, when you did a brake job, they put the rotors in a lathe and smoothed out all the grooves so that the new pads would start on a smooth surface and bed in together correctly. I guess if the dealer wants to GIVE you free new rotors, take them, but I dont see how this would happen, unless your rotors, caliper piston, or pads are defective.
DanF
10-09-08, 02:31 PM
#54
hummm that doesnt look normal too me... theres one groove that is bright silver... any one else think this is normal not normal... please chime in.
Last edited by i3urton; 10-18-08 at 10:56 PM.
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