rider Posted April 3, 2014 Share Posted April 3, 2014 (edited) I have a strange crashing sound coming from the front offside when driving on rough, mainly ribbed surface dressed roads. Total silence on smooth road surfaces so it can't be the wheel bearing. There is no vibration or thuds through the steering so it can't be the steering components. The noise is less but still seems to be there when braking so it can't just be the brake function. I did change all 4 shocks as the sound is like a dry shock so it definitely isn't the absorber. I've had the track rod ends changed so it isn't that. There is a metallic noise from the hub on each rotation after its had a knocking session for I'd guess about a third of the rotation following when the knocking has been quite bad. Its also exacerbated on full left hand lock. Could it be the pad clunking on a sticking or partially seized calliper? Any ideas folks, I'm running out of ideas how to end the noise and my garage is only happy to look into what I suggest they look into. I am thinking just replace the front callipers as they aren't expensive, does anyone have a part number for the import jspec caliper? Edited April 3, 2014 by rider (see edit history) Quote Link to comment Share on other sites More sharing options...
straightsix Posted April 3, 2014 Share Posted April 3, 2014 Seek out Chris Wilson our resident Supra Yoda Quote Link to comment Share on other sites More sharing options...
T14PPA Posted April 3, 2014 Share Posted April 3, 2014 Does the pads have the clips to hold it in position? Sounds like pads wobbling to me Quote Link to comment Share on other sites More sharing options...
tony tt Posted April 3, 2014 Share Posted April 3, 2014 Does the pads have the clips to hold it in position? Sounds like pads wobbling to me Yeah possibly this. Does the pads have shim kits fitted? Quote Link to comment Share on other sites More sharing options...
rider Posted April 3, 2014 Author Share Posted April 3, 2014 Yeah possibly this. Does the pads have shim kits fitted? No, but I do have a set available to fit so I guess maybe try that first. Quote Link to comment Share on other sites More sharing options...
Ian C Posted April 4, 2014 Share Posted April 4, 2014 The metallic noise is probably the pads scuffing the surface of the disk each rotation, due to a slightly thicker part of the brake disk or slightly eccentric wheel rotation. You can test that by jacking it up and manually rotating the wheel, listening for it. Removing the wheel and turning the hub by hand is even better as it'll become noticeably harder to turn as the pads contact the disk (you should even be able to see it happening). You can get quite the "loose bit of metal" rattle from brake pads that are loose in the caliper as well. Quote Link to comment Share on other sites More sharing options...
rider Posted June 16, 2014 Author Share Posted June 16, 2014 Just to close this thread off with a resolution. Problem was solved with a new set of front discs and pads. Quote Link to comment Share on other sites More sharing options...
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