Puzzler

[Jon Page]

>The first bass octave dampers won't lift away from the strings 
>either with the keys or damper pedal.  Also many hammers are 
>blocking in this area


Classic symptom of the back  separating from the block.  The block 
and plate are being
pulled forwards by the string tension. This moves the string plane 
closer to the action
resulting in blocking hammers and late or non-lifting dampers.

Second choice, the side of the case is loose.
-- 

Regards,

Jon Page
-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20071007/2880f99b/attachment.html