S2000 Under The Hood S2000 Technical and Mechanical discussions.

Decelerating causing rattling in 04...

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Old Jan 6, 2005 | 05:02 PM
  #11  
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Originally Posted by steven975,Jan 5 2005, 02:38 PM
hmm, would putting in a few strategically placed cushions between spring coils fix it?

koala, the springs are in the disc (4 of them I think), not the pressure plate. yea the pressure plate has springs, but not the springs that vibrate.
Ah, good to know.
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Old Jan 6, 2005 | 06:27 PM
  #12  
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I recently replaced my '02 clutch, and noticed how loose my 4 springs were in the clutch disk. However, I don't recall ever hearing any noise on decel. The springs in the new clutch disk were pretty taught, so I guess they loosen up over time.

My suggestion is to not decellerate in gear with the clutch released (on the street). I usually don't unless I'm on the track. The F20C doesn't provide much engine braking anyway.
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Old Jan 6, 2005 | 06:28 PM
  #13  
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I've got it on my 04 too. It started soon after adding a new stock clutch, HD pressure plate, and lightened flywheel. No issues before that.

I was hoping it was just a heat shield vibration due to the new pieces and not something inside the tranny; it has that type of sound. Guess that's not the case, based on the posts.

It's pretty annoying with the top up, but I don't notice it with the top down.
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Old Jan 6, 2005 | 07:08 PM
  #14  
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If the noise is coming from the 4 coil springs in the friction disk, then I would expect that a stronger PP would make it come on quicker due to the higher loading.
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Old Jan 7, 2005 | 12:10 PM
  #15  
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the noise comes from the throw out bearing.
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Old Jan 7, 2005 | 01:18 PM
  #16  
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Originally Posted by TurboVtk,Jan 7 2005, 03:10 PM
the noise comes from the throw out bearing.
I don't see how the throw out bearing would make any noise when the clutch is fully engaged. It just sits there until you push the clutch pedal.
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Old Jan 7, 2005 | 01:29 PM
  #17  
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its seats there and it rattles.
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Old Jan 7, 2005 | 01:38 PM
  #18  
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Originally Posted by TurboVtk,Jan 7 2005, 04:29 PM
its seats there and it rattles.
I don't think so. CMNSENSE (sp?) has done extensive experimentation with his pressure plate to deal with his decel buzz. He hasn't fully disclosed what he's doing, but the short of it is that he is altering the resonant properties of the springs.
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Old Jan 7, 2005 | 04:22 PM
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Originally Posted by TurboVtk,Jan 7 2005, 02:10 PM
the noise comes from the throw out bearing.
How could the throw out bearing possibly rattle?
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Old Jan 7, 2005 | 05:24 PM
  #20  
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ok guys am out later
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