[Guest]

This only happens when the gang totally closes. It does not appear to be due to bent plates but rather the rotor going too far and touching the stator.

I have made a fix by putting a loop of black lacing string, between the middle two plates of each rotor section. This simply goes around the bar that holds the plates together.

In practice it works but I wonder if anyone else has come across this or if there were originally (now missing) some sort of stops that prevented this from happening?

thanks Gary