Rotora Rotors...warping?
#1
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Seems like my Rotora rotors are warping, and I've only had them in since mid-March. It's not to the point of needing a replacement, but I do feel a light shudder when breaking from speeds above 35mph. I'm pretty anal about properly torquing my lugs, and I don't break excessively. I do have the Legend calipers paired with EBC greenstuff pads. I did just recently get an alignment, though the vehicle runs smooth out on the highway w/o and vibrations. I know there are others who've had their rotoras warp on them, but I thought i'd get more than 2500 miles out of them before they'd start to warp. Could there be another prognosis to shuddering while braking, or is it pretty much just downhill from here like with the stock rotors?
#3
Originally Posted by CleanCL
try to bed the pads again.
#5
Senior Moderator
iTrader: (2)
I had this problem. But my solution wouldn't apply to you. In my case I had 2 broken wheel studs. Had the tires rotated & they were found. Once replaced everything was smooth again.
It's possible your felling the pads contacting the rotor? Slotted rotors have a certain sound & feel as the pads clamp down.
It's possible your felling the pads contacting the rotor? Slotted rotors have a certain sound & feel as the pads clamp down.
#6
I now drive an accord....
Yeah I would hope that the rotoras shouldn't warp after 2500 miles ![Nervous](https://acurazine.com/forums/images/smilies/nervous.gif)
I have 37K miles on my stock rotors and im just starting to get a slight vibration under moderate braking. So when I upgrade to the rotoras soon I hope they will be better than stock not worse
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I have 37K miles on my stock rotors and im just starting to get a slight vibration under moderate braking. So when I upgrade to the rotoras soon I hope they will be better than stock not worse
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#7
Originally Posted by fuzzy02CLS
I had this problem. But my solution wouldn't apply to you. In my case I had 2 broken wheel studs. Had the tires rotated & they were found. Once replaced everything was smooth again.
It's possible your felling the pads contacting the rotor? Slotted rotors have a certain sound & feel as the pads clamp down.
It's possible your felling the pads contacting the rotor? Slotted rotors have a certain sound & feel as the pads clamp down.
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#10
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Originally Posted by gaping46and2
I know there are others who've had their rotoras warp on them, but I thought i'd get more than 2500 miles out of them before they'd start to warp. Could there be another prognosis to shuddering while braking, or is it pretty much just downhill from here like with the stock rotors?
You said you noticed a difference though in the setup since the day you installed the entire brake system and then you noticed a problem after the alignment. That's interesting.
Anyways, as you mentioned, it is extremely important to torque the wheels down to 80 ft lbs of tq and in a star pattern.
Also try re bedding in the pads in this manner (courtesy of Stoptech):
http://www.stoptech.com/tech_info/wp_bedinstock.shtml
#11
Team Owner
iTrader: (4)
Weird. I keep reading about warped Rotoras that are relatively new. And my co-worker has them on his TL. His warped within a month. He had them re-surfaced and they were fine. But I'm not sure why they warped so quickly.
I had no problems with mine.
I had no problems with mine.
#12
I have had my Rotora's on for 15k and they have been absolutely great. I do need to get new pads though. I hear a slight squeek under minimal braking from the rt side and I am guessing it is time for new pads.
Excelerate, When you sell the rotors what are the pads that you offer with it also? I need to get a new set probably hehe
Excelerate, When you sell the rotors what are the pads that you offer with it also? I need to get a new set probably hehe
#13
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Originally Posted by RaviNJCLs
Weird. I keep reading about warped Rotoras that are relatively new. And my co-worker has them on his TL. His warped within a month. He had them re-surfaced and they were fine. But I'm not sure why they warped so quickly.
I had no problems with mine.
I had no problems with mine.
There are machine shops that cut these rotors. They have to do the cross hatch method I believe.
To the other poster, I recommend Hawk or ROTORA ceramic pads.
#14
I completely understand how improperly torquing the lugs can warp just about any rotor. I'm very particular about this, and every time someone else has taken my wheels off, I'll immediately loosen and properly torque the lugs myself when I get back to my house, no matter if they were already properly torqued.
#15
Senior Moderator
Its possible that you have a caliper thats hanging slightly causing buildup on the rotor.
#16
I re-bed the pads again this afternoon, but I can't tell if it made any difference. The pedal feels real soft now and I almost have to put it to the floor to stop, so I think it's time to replace the brake fluid. What's the consensus on brake fluids? I've heard good things about Castrol GT LMA and Valvoline Synpower, but I think all I can get locally is the Valvoline.
What's the simplest way to determine if the caliper is hanging?
Originally Posted by fsttyms1
Its possible that you have a caliper thats hanging slightly causing buildup on the rotor.
#20
Originally Posted by smokendsm
With his setup he should not have the pad overhanging the rotor.
What fsttyms1 meant to say was probably that your caliper is sticking.
What fsttyms1 meant to say was probably that your caliper is sticking.
Originally Posted by fuzzy02CLS
Castrol GT LMA
This is what I use on the CLS & my Explorer.
This is what I use on the CLS & my Explorer.
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#21
Former Sponsor
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Originally Posted by fsttyms1
Its possible that you have a caliper thats hanging slightly causing buildup on the rotor.
#22
Well...it's kinda fast...
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Oops, I usually associate “hanging” with overhanging calipers on upgraded brake systems like in the picture. I realized later you’re running stock calipers with OEM size rotors…sorry.
With sticking pistons (if that's the problem), it’s recommended to rebuild or replace the caliper assembly.
With sticking pistons (if that's the problem), it’s recommended to rebuild or replace the caliper assembly.
#23
Checked every autoparts store in town and none carry Castrol brake fluid. I purchased a 32oz bottle of Valvoline SuperSyn. Is there any special method that I would need to use to replace my brake fluid as it's marketed as a synthetic fluid? I've read up on it a bit and found this website which seems like it has some good info. Towards the end of the article it states glycols used in the fluid are not naturally ocurring, therefore the "syntetic" status of the brake fluid. Should I be worried about the brake fluid in the system mixing (or rather not mixing) with the new fluid and causing problems later on?
#24
an adult perspective
I'm sorry for your problems. I got sucked into the Rotora frenzy a while back, and even tho I had zero problems with my OEM rotors, I bought these POS rotors. After only 25K miles, I was forced to go back to my OEM rotors because the Rotora's kept warping as I was advised against any more turning of the POS Rotoras.
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