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Warped Discs

8110
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8110 Mentor

8110

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On my R34 GTT, the discs were warped as I can feel intense vibration everytime I brake hard. After which I got the disc skimmed and slotted.

rotors5.jpg

After a couple of weeks, the sympton re-appeared. it's not as bad as the first time but the steering vibrates whenever I brake hard. It's annoying me to the max and my mechanic says it's a common problem with Skylines. Is that so?

Does any of you experience the same thing?

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GTRgeoff Grand Master

GTRgeoff

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Not that common but I suspect it was not warped at all but has an area that had the brakes held on after a big stop getting the discs hot. Pad material migrates into the disc and the steel changes into a different form that is harder wearing, so as it wears a shudder appears. Time for new discs. Get RDA for good value.

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mad082 Grand Master

mad082

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another thing is if you brake really hard from a decent speed, and stop and sit there for a few mins then the heat from the pads and rotors being so close and hot will warp that spot.

i had a similar problem on my old magna. i put new rotors on, after a while they got a bit warped. i got them machined, then after a month or 2 (not much heavy braking) it reapeared. ended up getting new rotors again and that solved it. it seemed to do 1 side more than the other. i think i may have also had a sticky piston that wasn't helping the problem.

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8110 Mentor

8110

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I got new pads after I machined the rotors. It performed well for a couple of weeks before the intense shuddering under hard braking re-occurs. It's irritating and does do to well with driving with confidence.

Someone mentioned it might not be the rotors BUT after I machine it, it works fine. Sigh.....

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