Posted by Christian Klein on August 30, 2002 at 17:47:57:
In Reply to: Pesky valve posted by scott (one of many h on August 30, 2002 at 17:25:32:
Cerveny valves have a little "thingie" on the back cover that bears on the back of the rotor to help with "up and down" motion.
Mirafones have a screw for this.
If you tighten the cap and the valve sticks, you might have the wrong back cover on your fourth valve.
Christian