[pianotech] WNG jack don't come back no more, no more, no more.....

[Ed Foote]

Greetings,
   Have finally found a rebuild that can use the new space age WNG composite parts.  However, the jack will NOT return under the knuckle. (Steinway B). All the geometry looks good, and  I have put more spring in than is comfortable to play, raised the rep lever until there is a noticeable gap between the height of the jack, and when I pull the jack out from under, and let it go, it will not return.  
    This is a problem I noticed on a lot of the Baldwin Renner actions years ago.  Has anybody with WNG experience dealt with this before? 
Thanks,


Ed Foote RPT
http://www.piano-tuners.org/edfoote/index.html

 
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