Stiff clutch pedal = failing clutch?

[Kneale Brownson]

Thanks, Keith, your description is clear to me.

At 10:16 AM 05/04/2003 -0400, DasWolfen at aol.com wrote:


>  Kneale and Wolff,
>  The reason a clutch feels the way it does involves how close to "center" the
>diaphragm arms are on the pressure plate and thats a function of clutch
>thickness.
>
>  The center or breakover point of the pressure plate diaphragm is the point
>of max resistance. Its very like a compound bow, when you begin pulling the
>bowstring the effort required increases until you get to the breakover point,
>once past that point effort drastically decreases. A new clutch disc is thick
>enough to keep the pressure plate very close to its breakover point. As the
>clutch wears it gets thinner and requires you to move the pedal further to
>reach the breakover point. Eventually the clutch gets so thin that you never
>reach the breakover point of the pressure plate. You feel this effect in the
>pedal as stiff at the top and easy at the bottom when new and easy at the top
>and stiff at the bottom when old.
>
>  Sorry for the poor explanation but its the best I can do without drawings.
>Keith
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