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05-05-2021, 01:02 PM
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#1 |
 Drives: 2018 1SS 1LE Join Date: May 2021
Location: Mid-Atlantic
Posts: 3
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ACDelco Rotors Rough Finish?
This is my first post, so please be gentle.
I was at the track recently with my '18 SS 1LE and I did a dumb. I track the car pretty regularly and I knew my front brake pads were getting thin, but I wanted to get every bit of life out them that I could. Because, you know, $$$. During my third session of the day, I ended up burning through the remaining pad material and ruining my rotors... So, instead of being frugal, I cost myself even more money by needing new rotors. I still run the factory Brembo rotors and pads as I have found them to be pretty effective. When the ACDelco-branded OEM replacements arrived, I was surprised to see that the rotor faces are not smooth. They have a slightly coarse, dull matte grey appearance. I expected a "silvery" smooth finish. ACDelco 177-1193 ACDelco 177-1194 Do the ACDelco rotors ship unfinished? Do they need to be turned or surfaced before installation? I tried searching for the information but couldn't find anything. Maybe the answer is just obvious to everyone else? |
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05-05-2021, 01:54 PM
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#2 |
  Drives: 2018 Camaro SS 1LE Join Date: Jul 2018
Location: Stuttgart, Germany
Posts: 807
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Look like this?
 Exactly how they are supposed to be.
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05-05-2021, 02:30 PM
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#3 | |
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Drives: 2018 1SS 1LE Join Date: May 2021
Location: Mid-Atlantic
Posts: 3
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Quote:
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05-05-2021, 03:11 PM
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#4 |
   
Drives: 2023 CT5 Blackwing Join Date: Sep 2016
Location: Orlando
Posts: 1,617
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Correct. The coating will be rubbed off by the pad.
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2017 HBM SS 1LE
Sold 2023 Wave Metallic CT5-V Blackwing M6 |
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05-05-2021, 03:14 PM
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#5 |
 Drives: 2019 2SS 1LE Join Date: Aug 2019
Location: CT
Posts: 112
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Yes - this is the new anti-rust coating. First drive will remove the coating.
No need to use brake cleaner either, I believe, but I give it a quick spritz anyway to get my greasy fingerprints off. |
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05-05-2021, 03:44 PM
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#6 |
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Drives: 2018 1SS 1LE Join Date: May 2021
Location: Mid-Atlantic
Posts: 3
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Thank you. I just wanted to be sure before I bolted it together and ruined some brand new stuff.
Happy motoring! |
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05-06-2021, 12:34 PM
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#7 |
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Geoff
Drives: 2020 ZL1 Green Join Date: May 2013
Location: Houston
Posts: 1,719
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Be sure to bed in / burnish the new pads and rotors. The procedure is in the owners manual
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