Posted by Sean Chisham on June 04, 1999 at 13:26:53:
In Reply to: Sticky Rotary Valves posted by Alan Palmer on June 04, 1999 at 12:33:16:
I am not an instrument repairman, but I did sleep in a Best Western last night.
You might have a bent linkage on that valve. That is where I would start. The valves are not worn while spinning all the way around. In fact, I would guess that spinning them all the way around a few times might give wear patterns which you don't really want.
Check out the linkage leading to it.
sean