Lightening touch by changing damper timing redux

[Piannaman@aol.com]

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List,
 
Some of you may remember that a few months back I was asked to lighten the  
action in a Seiler 186 grand.  I went about it by raising the damper lift  to 
occur just before letoff.  Instead of getting two bumps--one from damper  
lifting underlever and the other from jack hitting button--you get a single,  more 
elongated bump. The method I used at that time was raising the damper  wire 
blocks.  It worked quite well, but it required regulating all of the  dampers to 
lift evenly from the tray as well.  The whole thing took around  2 hours.
 
A couple of days ago, I achieved the same result on an earlier model  of 
Seiler (180) by bending the spoons upward slightly.  Worked like a  charm, and 
took about 1/4 the time.  
 
I've read opinions about this where some techs say that changing  damper 
timing "doesn't really lighten the touch, it only gives that  perception."  As a 
piano player, the difference was quite noticeable in  terms of weight and 
control.  As a tech, I noticed a five gram difference  when I measured it.  
 
The best two features of this operation?  1).  It  works   2).  It's easily 
reversible.
 
Dave  Stahl

Dave Stahl Piano Service
650-224-3560
_http://dstahlpiano.net/_ (http://www.dstahlpiano.net/) 

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