Hi Tom, Others -- You're right about the blistered, crumbling brackets swelling while the metal crystallizes. There was a thread about this last summer sometime started by PianoNurse when she worked on another make of piano that had the same problem with crumbling brackets. However, I used to work on a lot of Young Chang products ... and I still see the occassional piano that escaped a dealer unprepped when I *inherit* customers from other technicians who preferred not to bother much with regulation. I remember some of the regulating jobs in the rough fresh from the factory when I worked for a dealer, many of which featured the inordinately high drop. My earlier post tonight on Aftertouch in general is based on the assumption that everything checked out OK with the physical condition of the action components. Perhaps I should have specifically mentioned the action brackets ........... This brings to mind another Young Chang phenomenon I've encountered -- problems with the threaded "pins" that hold the regulating dowels. On some pianos, these pins would be wider at the tip than at the base, which meant that the dowels were caught on only 2-3 threads rather than along the whole length. This in turn meant that the dowels were prone to riding up on the pins to the point where hammers readily blocked. ZR! RPT Ann Arbor MI diskladame@provide.net ---------- > From: Tom Myler <TomMyler@worldnet.att.net> > To: pianotech@ptg.org > Subject: RE: Young Chang Aftertouch > Date: Wednesday, May 13, 1998 7:14 PM > > > Mike, > > you might call Phillip Glenn at Young Chang about this. Several years ago > there was a batch of YC's that have defective action brackets; the metal > deteriorates (crystallizes?) and *expands*, skewing the action spread, and > making proper regulation impossible. I am NOT making this up. > > The symptoms you describe fit this diagnosis. I've worked on several of > these, and on all but one of them you could see big "blisters" on the > brackets. > > IF this is your problem you can easily replace the brackets and re-regulate > in less than a day. > > > > > Tom Myler > > "Well done" is better than "Well said" > > >
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