Circular scratch on my slotted rotor.

Old 05-25-2016, 06:12 PM
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Circular scratch on my slotted rotor.

I just installed slotted rotors front and back but on the driver rear there's a circular scratch on the top portion after driving. What could it be.
First picture is the rotor I'm talking about. The 2nd picture is the rotor with no issue in the front. Also no noise is being made when driving.
Attached Thumbnails Circular scratch on my slotted rotor.-image.jpeg  
Old 05-25-2016, 06:12 PM
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Old 05-25-2016, 06:50 PM
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I honestly dont see anything
Old 05-25-2016, 06:55 PM
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Now I see it!



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Old 05-25-2016, 06:58 PM
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Old 05-25-2016, 09:20 PM
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Does it look sort of like something mildly abrasive might have come in contact with the rotor while it was turning?

I've heard of that sort of thing happening before.
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Old 05-26-2016, 09:21 AM
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LOL at ssjoe...

@ cu2 thats what i was thinking, but im dont think it is the brake pad, do you think it was a one time thing that did that or is it something that is still happening as a drive...

will that scratch affect my rotor now?
Old 05-26-2016, 09:33 AM
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whoa, wait.. am I going crazy?

Look at pic #1- look at where the slot ends.


Look at pic #2 and where the slot ends.


Did you buy ebay-special-straight-from-China-rotors, where the guy couldn't even create equal length slots? I'd be more concerned about the quality of what you bought, as opposed to a circular scratch on a surface that is meant to endure crazy amounts of friction...
Old 05-26-2016, 09:35 AM
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Originally Posted by z643167z
LOL at ssjoe...

@ cu2 thats what i was thinking, but im dont think it is the brake pad, do you think it was a one time thing that did that or is it something that is still happening as a drive...

will that scratch affect my rotor now?
I don't know man. I looked at the pictures and don't see anything abnormal. It just looks like a normal rotor.

Drive a bit more and see if it wears away.

Look fine to me, I wouldn't worry about it. YMMV though.

Last edited by cu2wagon; 05-26-2016 at 09:38 AM.
Old 05-26-2016, 09:36 AM
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Originally Posted by TacoBello
whoa, wait.. am I going crazy?

Look at pic #1- look at where the slot ends.


Look at pic #2 and where the slot ends.


Did you buy ebay-special-straight-from-China-rotors, where the guy couldn't even create equal length slots? I'd be more concerned about the quality of what you bought, as opposed to a circular scratch on a surface that is meant to endure crazy amounts of friction...
Fronts vs. Rears. Different diameters. Could be fine.
Old 05-26-2016, 09:37 AM
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...ooooorrrrrrr... it could be a rolling deathtrap!
Old 05-26-2016, 09:37 AM
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I think he's referring to the general circular pattern on the rotor after braking, as opposed to the thatched look of the brand new rotor... I don't know what to say
Old 05-26-2016, 09:37 AM
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just plastidip it..
Old 05-26-2016, 09:40 AM
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Originally Posted by TacoBello
I think he's referring to the general circular pattern on the rotor after braking, as opposed to the thatched look of the brand new rotor... I don't know what to say
That's what I thought. And why I think it's a-okay.
Old 05-26-2016, 09:40 AM
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Originally Posted by cu2wagon
Fronts vs. Rears. Different diameters. Could be fine.


So the guy didn't align the slots for the smaller rotors?


I doubt it's a rolling death trap, but you get what you pay for. Just speaks to the quality of the product
Old 05-26-2016, 09:41 AM
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Originally Posted by thoiboi
just plastidip it..
Always jumping right to the plastidip.

He should try buffing it out first.

Like with a mildly abrasive organic compound compressed into a pad like structure. Apply constant and uniform force via a circular piston.

That will likely fix it up.

If that doesn't work, then Plastidip.
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Old 05-26-2016, 09:42 AM
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Originally Posted by TacoBello
So the guy didn't align the slots for the smaller rotors?


I doubt it's a rolling death trap, but you get what you pay for. Just speaks to the quality of the product
Yeah, no clue.

zNUMBERSz: what brand are these rotors? out of curiosity.
Old 05-26-2016, 09:44 AM
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Originally Posted by cu2wagon
Always jumping right to the plastidip.

He should try buffing it out first.

Like with a mildly abrasive organic compound compressed into a pad like structure. Apply constant and uniform force via a circular piston.

That will likely fix it up.

If that doesn't work, then Plastidip.

That's what got him in this mess in the first place!!
Old 05-26-2016, 09:44 AM
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ok thanks guys and its powerstop pads and rotors from autozone website.
Old 05-26-2016, 09:50 AM
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Power Stop/Performance Brake Pads / Rotors Kit K2742- ReadReviews onPower Stop #K2742
Old 05-26-2016, 09:54 AM
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Originally Posted by TacoBello
whoa, wait.. am I going crazy?

Look at pic #1- look at where the slot ends.


Look at pic #2 and where the slot ends.


Did you buy ebay-special-straight-from-China-rotors, where the guy couldn't even create equal length slots? I'd be more concerned about the quality of what you bought, as opposed to a circular scratch on a surface that is meant to endure crazy amounts of friction...
Front vs rear brahhhh different sizes
Old 05-26-2016, 09:56 AM
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IN the buffing process in a circular motion with some organic compound, wouldn't it be idea to put some sort of oil or lubricant ? That might prevent further scratches...
Old 05-26-2016, 09:58 AM
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This is my new favorite thread.

I heard doing multiple power stops and then immediately spraying down rotors with water helps with strain hardening the material! Could prevent further scratches
Old 05-26-2016, 10:00 AM
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Originally Posted by ssjoeboe9
Front vs rear brahhhh different sizes
You're not serious, are you?
Old 05-26-2016, 10:02 AM
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Originally Posted by ssjoeboe9
This is my new favorite thread.

I heard doing multiple power stops and then immediately spraying down rotors with water helps with strain hardening the material! Could prevent further scratches
ill have to try this... spray all four rotors?
Old 05-26-2016, 10:13 AM
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Originally Posted by z643167z
ill have to try this... spray all four rotors?






Old 05-26-2016, 10:26 AM
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Old 05-26-2016, 10:28 AM
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make sure you are travelling at least 150mph before trying to apply the brakes though
Old 05-26-2016, 10:34 AM
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Is it just on the one side?

No bolts scraping? No noise? No nothing?
Old 05-26-2016, 10:38 AM
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When is Justin gunna join this thread??

JUSTIN where you at???!!
Old 05-26-2016, 10:41 AM
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Originally Posted by ssjoeboe9
When is Justin gunna join this thread??

JUSTIN where you at???!!
here, butt, I like to give good advice first before every one gives false advice...
Old 05-26-2016, 10:44 AM
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Originally Posted by justnspace
here, butt, I like to give good advice first before every one gives false advice...
lame
Old 05-26-2016, 10:48 AM
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Originally Posted by ssjoeboe9
lame
hey, i get my kicks out of helping first...then after repeated mistakes, i'll go in.

as far as the OP, I only see cross-hatch marks, no swirls or anything that looks like a foreign object or debris in the way. (except maybe Drake sitting there)

OP has nothing to worry about with his rotors.
and all he will get from splashing the rotors with water after a drive is steam. and maybe some surface rust, but by no means is a concern for safety.
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Old 05-26-2016, 10:49 AM
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OP still alive?
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Old 05-26-2016, 11:17 AM
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Originally Posted by t3hhcaptain
Is it just on the one side?

No bolts scraping? No noise? No nothing?
just that one rotor, not noise or scraping either
Old 05-26-2016, 11:22 AM
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It's fine.

Do nothing.

Fer serious.
Old 05-27-2016, 08:46 AM
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Originally Posted by z643167z
just that one rotor, not noise or scraping either
Sounds like it isn't a big deal then. Is it scraped on only the front of the rotor, or is it scraped on the front and back sides of that same rotor?
Old 05-27-2016, 08:50 AM
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nope just rear driver rotor has the scrap
Old 05-27-2016, 08:53 AM
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Have you been driving the car since you posted the pictures?

I'd be curious what it looks like now; if it's gotten better or worse.
Old 05-27-2016, 08:55 AM
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ohh, i finally see the scratch in the first pic.

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