chattering! did he surface the flywheel while doing the clutch?  If he
didn't surface it, the OEM clutch will chatter like a drunk duck.  Lots of
people have reported this problem.

Matthew Pollard             http://www.uidaho.edu/~poll7356
Dept. of Chemistry               http://www.chem.uidaho.edu
University of Idaho                   http://www.uidaho.edu