don280z Posted April 15, 2005 Report Share Posted April 15, 2005 My front wheels have developed a shimmy when braking from high speeds (50+mph). It feels like the rotors are warped. At slow speeds (0-30mph) it is OK. Also, it does not seem to shake until the car has been driven for a few minutes - possibly because the brakes/rotors are still cold? Can the rotors warp when they get hot, and straighten back out when they cool down??? Thanks... Link to comment Share on other sites More sharing options...
Scotty Posted April 15, 2005 Report Share Posted April 15, 2005 Here is an interesting article on "warped rotors" http://www.stoptech.com/whitepapers/warped_rotors_myth.htm The term "warped rotors" is a misnomer, most of the time the shudder is caused by the transfer of brake material to the rotor and the rotor becomes GRABBY.... If your pads are in good shape you may be able to have the rotors cleaned up and resurfaced to stop the shudder you are getting and use the existing pads. Do a search on 'bedding the brakes" here so that you break them in correctly (no pun intended). The fronts you can feel in your steering wheel, to see if your rears are shuddering, drive at highway speed and press your emergency brake and see if you get shudder (with no one behind you). Mike Early on sailors navigated by the stars at night and the North star became the symbol for finding ones way home. Once you know where the Northstar is you can point your ship in the right direction to get home. So the star became a symbol for finding ones way home or more symbolically even finding ones path in life. Link to comment Share on other sites More sharing options...
Ranger Posted April 15, 2005 Report Share Posted April 15, 2005 No, if they are warped, they are warped but that is not your problem. You have uneven brake pad deposits on the rotors. Take them in and have them cleaned up. Just a light skim cut is all that is needed even if they look good. Trust me, I just went throught this with my daughters Taurus. She was selling it and it had a terrible brake shudder. I pulled the brakes and the rotors were clean and smooth. Even used some sand paper on them. No go. Pulled them and had them skimmed. Stopped smooth as can be. This link will explain it better than I. http://www.stoptech.com/whitepapers/warped...yth._german.htm Edit: oops, Mike types faster than I. Link to comment Share on other sites More sharing options...
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