My clutch failed as I pulled into my favorite coffee shop (McDonald's) at 0500 the other morning. Pedal went right to the floor with nearly no resistance at all. I opened the hood and looked over the linkage and could see nothing obviously wrong. I figured my pressure plate had failed or release fork had broken inside the bell housing. I tore it all down, but everything checked out just fine. Drove me nuts. No adjustment on a clutch and linkage that appeared just fine. After spending a few hours over a few weeks fooing with it, a friend came over tonight and we finally decided to take the z-bar out to examine it more closely and found it had split.
Now to see if I can find another, or try to repair this one. At least I finally know what happened.