[pianotech] More on Yamaha Sticking C6 Key Problem

[Joe Goss]

Hi ,
Just for fun do not put in the cheek blocks and move the action out just a 
little and see if that helps.
Dag - gum - it
Joe Goss BSMusEd MMusEd RPT
imatunr at srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: <rsfinley at charter.net>
To: <pianotech at ptg.org>
Sent: Sunday, February 14, 2010 3:52 PM
Subject: [pianotech] More on Yamaha Sticking C6 Key Problem


> Here are some more observations on the intermittent problem with the C6 on 
> my Yamaha G1 Piano.
>
> When I play the key the first time, the note usually sounds, but if I play 
> repeatedly and quickly after that, it stops sounding. I have to wait a few 
> seconds after that for the key to recover, before it will play again. It 
> seems there is a delay of a few seconds when part of the action is slowly 
> getting back into the position when the key can be played. I am puzzled 
> why there is this delay.
>
> When I take the action out and put it on a table, I cannot reproduce the 
> sticking key effect for C6, even if I simulate the presence of the string 
> using a hard book held some distance above the hammer (of course the 
> hammer will not rebound in the same way as for a string). I can cause the 
> hammer to move in fast repetition without any blocking effect. The 
> sticking key effect only occurs when the action is back in the piano. 
> Although I doubt it,  I am wondering if this is a combined effect of the 
> damper and the action causing this sluggish operation, although the damper 
> for C6 seems to be working fine.
>
> When I look at action for C6 (difficult to see everything due to the 
> proximity of the actions of the other keys, everything appears to be 
> intact.  I haven't removed the whippen assembly for C6 yet to examine it 
> in detail. Maybe I should do that.
>
> Could anyone throw more light on this? Thanks for your advice.
>
> Robert