Hi all,

I'm new to the forums having just acquired an S2000 in the last month or so. I'm based in Dublin, Ireland. I'm having problems with the car. The car drives great but I bought it with this grinding sound on overrun (ie. when you shift down from 5th to 4th or 6th to 5th or let off the accelerator)

The car has a bit of history. It was driven hard for all of its 37000 mile history and has had an accident before (driver's side and rear). I've gone through the drive train:

1) Changed the propeller shaft (2nd hand item)
2) Changed the final drive (J's Racing)
3) Changed the clutch and flywheel (Clutchmasters)
4) Changed 2 rear wheel bearings
5) Dropped in a 2nd hand gearbox
6) Changed right hand side engine mount (left side looked fine)

I was wondering with all the great minds on this forum if anyone has had a similar experience with this grinding noise on overrun. It sounds very much like bearings but the bearings were completely re conditioned in the first gearbox and the sound was still there.

The 2nd gearbox was dropped in yesterday but it still has the same sound when you lift off the accelerator at about 4000 rpm and especially when you downshift.


heeellp meee... please. Before I give up!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by clanger &raquo;</TD></TR><TR><TD CLASS="quote">Hi all,

I'm new to the forums having just acquired an S2000 in the last month or so. I'm based in Dublin, Ireland. I'm having problems with the car. The car drives great but I bought it with this grinding sound on overrun (ie. when you shift down from 5th to 4th or 6th to 5th or let off the accelerator)

The car has a bit of history. It was driven hard for all of its 37000 mile history and has had an accident before (driver's side and rear). I've gone through the drive train:

1) Changed the propeller shaft (2nd hand item)
2) Changed the final drive (J's Racing)
3) Changed the clutch and flywheel (Clutchmasters)
4) Changed 2 rear wheel bearings
5) Dropped in a 2nd hand gearbox
6) Changed right hand side engine mount (left side looked fine)

I was wondering with all the great minds on this forum if anyone has had a similar experience with this grinding noise on overrun. It sounds very much like bearings but the bearings were completely re conditioned in the first gearbox and the sound was still there.

The 2nd gearbox was dropped in yesterday but it still has the same sound when you lift off the accelerator at about 4000 rpm and especially when you downshift.


heeellp meee... please. Before I give up!
</TD></TR></TABLE>

if it sounds like a rattling noise at a specific rpm when you coast in gear, that's the springs in the friction disk of the clutch rattling. The noise is just that, noise and you shouldn't be too concerned about it. If that doesn't sound like your situation, please give any more information that might help out with an online diagnosis.

cheers and welcome to the board!

 

mine does the same thing, which i heard before that its normal. earlier models had this problem, but these a CURE! put on a BIG FAT EXHAUST SYSTEM that screams and echoes! that will help...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by vapor &raquo;</TD></TR><TR><TD CLASS="quote">if it sounds like a rattling noise at a specific rpm when you coast in gear, that's the springs in the friction disk of the clutch rattling. The noise is just that, noise and you shouldn't be too concerned about it.</TD></TR></TABLE>

I thought only the OEM clutch disc springs do that? He has a clutchmasters clutch.