RHochreuter Posted April 30, 2012 Share Posted April 30, 2012 (edited) Hi guys, Since i purchased my current supra i have noticed that i have some rattling which sounds like it comes from below the rear sear. It happens in all gears up to around 2k rpm. As soon as i reach 2k rpm the rattle stops. Please listen to the video below. 00:08 -> 00:16: 2nd gear. going from 1600 rpm to around 2500 rpm. 00:18: Minor rattle after changing gear. 00:23 -> 00:26: 3rd gear below 2000 rpm with abit of throttle. [video=youtube;OujMsC-hOow] It's a j-spec torsen bigcase diff. (b03b). Anybody have an idea of whats wrong, how to fix it and how serious the problem is? Thanks Kind regards, RHochreuter Edited May 6, 2012 by RHochreuter (see edit history) Link to comment Share on other sites More sharing options...
Swampy442 Posted April 30, 2012 Share Posted April 30, 2012 Engine revs wont affect the diff, road speed/load will. Id say its something to do with the exhaust. Link to comment Share on other sites More sharing options...
RHochreuter Posted April 30, 2012 Author Share Posted April 30, 2012 Hi swampy, Thanks for your help. Im 100% sure its not the exhaust. From the frontseat it sounds like its comming from the diff. I wouldnt totally exclude that the sound could be from the gearbox though. Link to comment Share on other sites More sharing options...
Robzki Posted April 30, 2012 Share Posted April 30, 2012 prop centre bearing? Link to comment Share on other sites More sharing options...
RHochreuter Posted April 30, 2012 Author Share Posted April 30, 2012 I will have the check that. Would a prop bearing rattle at low rpm? Link to comment Share on other sites More sharing options...
Robzki Posted April 30, 2012 Share Posted April 30, 2012 Possibly not, but the small plate bolted around it may resonate at the right rpm. Link to comment Share on other sites More sharing options...
Swampy442 Posted April 30, 2012 Share Posted April 30, 2012 It may be the exhaust touching the car and resonating? It certainly won't be the differential. Link to comment Share on other sites More sharing options...
RHochreuter Posted May 6, 2012 Author Share Posted May 6, 2012 I added a youtube clip of the sound Link to comment Share on other sites More sharing options...
SJMKIV Posted May 14, 2012 Share Posted May 14, 2012 mine makes the exact same sound. seems to me its from the gearbox Link to comment Share on other sites More sharing options...
Sukhy Posted May 14, 2012 Share Posted May 14, 2012 Worn spigot bearing on the gearbox shaft causing a little play? Link to comment Share on other sites More sharing options...
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