Phil, First of all, I assume we are talking about a creak. A creek is a stream smaller than a river. One possibility is loose bottom board screws (the board on which the trapwork is mounted). A second is movement between one or more of the action support bolts and the action brackets resting on them. A third is movement of a case part when the sustain pedal is engaged (or, in this case, disengaged). I once found the pedal rail (bottom rail) making a creak, and a couple times the bottom panel against the sides. But I doubt if it was the bottom panel on a piano this old. It's more of a problem on pianos with polyester finishes. Regards, Clyde Phil Bondi wrote: > I had one today that I thought I'd share here. > > A 1920 Marshall And Wendell Upright. > > Everytime the damper pedal would make its way back to its 'rest' position', > you could hear a 'creek' coming from somewhere. > > The linkage involved to make the dampers lift are pretty typical for an > upright of this vintage..nothing fancy..very functional. > > The customer's previous tech told her that he could not fix the problem, but > did not tell her what the problem was. Today, I believe I found the problem, > and it doesn't involve any linkage with the damper pedal system. > > What I did today was take it all apart..replaced the leaf spring..applied > Teflon to the rod guides(there are 2 of them on the bottom board), and added > Teflon to the wooden rod guide that is attached to the inside wall of the > side panel..removed old felt from the top of the wooden rod and replaced it > with a new piece(possible 'creek' source, but not)..pulled the action, and > lubricated the damper lift rod thingees(there were 4 of them)..now I knew > that the 'creek' wasn't coming from these thingees, but what the heck..I was > going this far, I might as well go all the way. > > Still stumped as to where the 'creek' is coming from? > > Remember..the 'creek' only happened when the damper pedal was going back to > its rest position..why this 'creek' didn't 'creek' when the pedal was > engaging the dampers is beyond me, but I still feel the problem was > found..but not fully understood why. > > Your mission, is to try and figure out where the 'creek' is coming from and > > why it only happened when the pedal was on its way back to rest. > > The 'creek' was not coming from any part of the damper pedal linkage and > > There is a DC installed..noise is not coming from there..but that's your > only hint. > > have fun, > Phil
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