Hi, everyone, I have a late Edison Concert (Opera 4m) with Music Master horn. The mechanism is quite noisy and I have traced it to the relationship between the governor worm and the gear that drives the governor. There is a lot of play which causes a rattle when the cylinder begins to turn.
Is there any way to decrease the lash between the worm and gear? I thought that maybe the bearing pins would be mounted on an eccentric for adjustment but this is not the case on my machine. There is no wear in the pins and the governer shaft has no side play in it. Does anyone reproduce the brass gear? Can someone tell me what should be the diameter of the worm so I can verify that I have the correct one? Thanks very much in advance. Bill Morris
