[CAUT] tight balancier

[A440A at aol.com]

Wim writes:

<< As I said, I got a bunch of balanciers up to 6 grams. Now I will go 

for more resistance, when I can find a couple of hours in the hall.  >>

       One other thing you may want to look at is the lubrication in the 
grub,(spring slot).  If there is high friction there, the spring may have so much 
"stiction" (static friction), that the hammer is bouncing off the balancier.  
      Remove the whippen, clean and lube the grub and see if things change. 
Make note if there is an indention somewhere along the slot's length and 
burnish it away.   High use pianos often have springs that are digging into the grub 
after having worn a groove for themselves.  This seems more prevalent in 
pianos made in the last 40 years, and I have wondered if the maple is not as hard 
as it used to be. 
      Another approach is to swap a non-checking whippen with the nearest 
neighbor that checks and see if the problem stays or goes with the whippen.  If 
it stays, I would take another look at tail radius and back-check angle. 
 
Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html