[pianotech] tuning pin sizes: Boston & Essex?

[bergpiano]

Patrick,

I would try tapping the pins down about 1mm and see if that helps. For older Kawai's and Yamaha's This can bring 40 inch/lbs to 60 to 90.

Dan Berg
  ----- Original Message ----- 
  From: J Patrick Draine 
  To: Pianotech List 
  Sent: Wednesday, February 23, 2011 5:38 PM
  Subject: [pianotech] tuning pin sizes: Boston & Essex?


  Hi, I have a couple clients with recent (past the 5 year warranty, less than 10 years old) Boston and Essex grands. A few tuning pins have less-than-borderline torque, particularly in this cold-dry New England winter. I have a call back on the Essex ("This one note sounds horrible!!") which I tuned back in November.
  My options are drive pins (I'm visioning coils smashed to the plate, not a good choice), use CA (my usual choice when dealing with decades old pianos), or install a few oversize pins. Anyone know what length and diameter is the standard on these models (Boston GP-163 II and Essex EGP161)? I recall reading that Kawai and maybe Yamaha sometimes use a pin larger than 1/0 but less than 2/0.
  Thanks,
  Patrick
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110223/d80a385f/attachment.htm>