[pianotech] Another Damper Puzzler

[Ron Nossaman]

Ken & Pat Gerler wrote:
> Ron,
> Another attempt I didn't note.  I lifted the dampers, blocked them up 
> with the sustenuto pedal and then put a muting strip over the felt in 
> the lift tray and then tried using the damper pedal - the sound was 
> reduced (which as I am explaining this and have had 12 hours to think 
> about it, says the capstan screws need to be burnished as they must have 
> "something" on their surface that is causing the "extra" sound).  I did 
> just rub my finger across the felt in the lift tray and I could hear the 
> same sound.

Ken,
That sounds pretty narrowed down all right. So buff the 
capstans and replace the felt?
Ron N