Replace rotors?
08-17-18, 05:22 PM
#1
Lexus Champion
Thread Starter
Replace rotors?
I am putting in new pads and I’ve noticed that the rotor surface looks and feels uneven. Rotor thickness is fine. Should I be replacing the rotors or am I fine slapping on new pads with the way the rotor looks?
08-17-18, 05:54 PM
#3
Lexus Champion
Thread Starter
08-17-18, 06:17 PM
#4
Pole Position
Mine were just like that + all the holes had cracks coming off of them when I swapped out mine for new ones. Good question though, have no clue why they have that undulation on so many we see??
08-17-18, 06:33 PM
#5
Lexus Champion
Thread Starter
Yeah I have no braking issues at all. I have 4 mm left on the brake pads. Those are the original rotors that came with the car and they were machined 32,000 miles ago.
08-17-18, 08:12 PM
#7
Resurfacing rotors can and should be done when you are putting on new pads and if they are still thick enough. Turning rotors should take off very little material. Many years ago when I used to do it we would measure them and take off very little to get them smooth. If they are too thin or have cracks then replace them obviously.
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08-18-18, 04:36 PM
#8
Tech Info Resource
iTrader: (2)
Resurfacing rotors can and should be done when you are putting on new pads and if they are still thick enough. Turning rotors should take off very little material. Many years ago when I used to do it we would measure them and take off very little to get them smooth. If they are too thin or have cracks then replace them obviously.
The rotors in the pictures need nothing done to them. Be sure they're clean and more than the minimum thickness, slap in new pads, bed them properly and they'll work just fine for anything including track duty. AMHIK.
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vertex16 (08-19-18)
08-19-18, 08:13 AM
#9
Just no. Resurfacing is almost always a bad idea. The worst rotors I ever had on my car were resurfaced by someone before I bought them. Never again. The only proper way to resurface a rotor is to centerless grind it, and finding someone to do that is pretty hard at any price. That's how they come from the factory.
The rotors in the pictures need nothing done to them. Be sure they're clean and more than the minimum thickness, slap in new pads, bed them properly and they'll work just fine for anything including track duty. AMHIK.
The rotors in the pictures need nothing done to them. Be sure they're clean and more than the minimum thickness, slap in new pads, bed them properly and they'll work just fine for anything including track duty. AMHIK.
08-19-18, 05:29 PM
#12
Tech Info Resource
iTrader: (2)
08-20-18, 04:28 AM
#14
Lexus Champion
Thread Starter
Hmm we have some people saying replace them and others saying no need to replace. Interesting. Lol. I just came from Lexus and they didn’t even say anything about the rotors. They just said my pads were at 4mm and needed to be replaced.
