[pianotech] Friction Levels in Action Centers

[Dean May]

Hi Don

Could you explain wet sizing?

Dean

Dean May             cell 812.239.3359 

PianoRebuilders.com   812.235.5272 

Terre Haute IN  47802

 

-----Original Message-----
From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
Of Don Mannino
Sent: Tuesday, January 06, 2009 12:27 AM
To: drjazzca at yahoo.ca; pianotech at ptg.org
Subject: [pianotech] Friction Levels in Action Centers

<snip>

There was a time in the 80s when I was taking new actions from a well known 
piano company, wet-sizing the bushings in the hammers centers, then taking 
out the factory #19 pins and replacing them with #20 or 20-1/2.  The 
difference in tone and performance was amazing, because the original 
bushings were too thick and spongy.

Hope this helps.

Don Mannino