Fwd: Re: need a new clutch, but have no mods...what should i do?

[Wayne Cox]

At 08:07 AM 9/24/2002 -0400, you wrote:
>One option is to just get a stock clutch with B15 Disc. Its 15% than older
>ones.

I put this setup in Lisa's NX 2 months ago.  Here are the part numbers, and
full retail prices:
30210-53J19     P.Plate $100
30100-4M804     Disk    $77
Courtesy or any of the other mail order places will knock about 25% off
those prices.  Those #s should get you a B13 pressure plate and a 2000
model year's clutch disk.

Pros:
* Disk hub is beefier, with double-coil springs in it (a small diameter
spring inside the regular one)
* Disk looks a little thicker.  But I didn't have a regular one to compare
to, or anything to measure with.  Should give longer life, and a little
more clamping.
* Light pedal (see below) and costs the same as a regular stocker.
* Take-up is crisp, but not jerky.

Cons:
* Very strange pedal feel, I believe due to the thicker disk.  As the pedal
gets near the bottom, it suddenly lets go and has very little resistance in
the last part of its travel.

      If you've installed a clutch, you know the diaphragm spring fingers
initially stand outward (convex).  As you tighten it down, the fingers pull
in till they're almost sitting flat.  With this setup, they pulled in
further than I remember other clutches, and were down to completely flat or
maybe a little concave.  My flywheel was machined flat - if it had the
regular 0.007" step, this would have been even more pronounced.  The cable
had to be tightened down near the end of its adjustment range to talk up
enough slack.
      It looks like the thicker disk forces the pressure plate to work
outside of its normal range of motion, possibly causing the odd feel.  Is
this the same "over centering" condition from way back when?  Hopefully it
won't adversely affect performance or longevity.