Knuckle question

[reggaepass at aol.com]

Just wanted to second the notion about the value of new, high quality knuckles over anything less.  No one less than Laroy Edwards has compared the knuckle/jack interface with the familiar God/man interface (if you will) as portrayed on the Sistine Chapel.  It's that important.
 
Alan Eder 
 
 
-----Original Message-----
From: ricb at pianostemmer.no
To: pianotech at ptg.org
Sent: Sun, 3 Dec 2006 10:21 AM
Subject: Knuckle question


Hi Larry. 
 
In reply to the response to your post included below: 
 
Leather on knuckles is not the same in both directions. The nap of the knuckle leather offers different resistance turned one way visa vi the other. If first you are to remove an old set of knuckles... it is useless to bother refitting these in the opposite direction. To begin with older knuckles developer other problems then just a worn surface. The felt core gets mushed up, the leather loosens around it and you get friction problems up the pattootey. New knuckles do not cost much and will give you many fold return in terms of improved performance. 
 
The replies you've gotten from Ed, Stéphane, and John deal with your question appropriately enough so I'll leave their good advice to stand. 
 
Cheers 
RicB 
 
  > List... I have a set of knuckles to install and the wood core is 
  slightly 
  > narrower than the slot (it reaches the bottom). Is it acceptable 
  to install 
  > and let the glue fill in the gap or should I shim it with paper 
  or anything 
  > else? Or is it unacceptable to have a wood core that isn't snug? 
  Thanks for 
  > your help. 
  >   > Larry Trischetta 
  > Chapter 186 
  >   >   Why not use the original knuckles? Just turn them around, so that 
  the jack 
  will hit virgin territory after they are replaced in the groove. (Unless 
  there is something else wrong with them) 
  If you notice, it is the front half that gets worn in a knuckle. 
 
  S.P. 
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