Posted by John Cooper on February 06, 2002 at 01:31:08:
In Reply to: Valve Noise posted by Keving on February 05, 2002 at 23:34:54:
Another source of noise could be the linkage. Hold the rotor so that it can't turn, then tap on each of the paddles. If the linkage is loose, you should be able to hear and possibly see were the problem is.