Problems with Yamaha C7

[A440A at aol.com]

<< Then noticed a indentation sideways 

on the strikepoint of most of the affected hammers.  The felt seems to 

sink in (soft) at the strikepoint,  too deep to file off.  I doped the 

hammers with some keytop solution and the sound of that string got 

better;  but this is only a temporary solution.  As I see this piano 

every ten days,  I know I'm going to face this problem again very soon.  

Has anyone a suggestions on these Yamaha hammers? >>

This sounds like the remains of a set of hammers that have had numerous 
shallow stitches along the edge of the shoulders and crown.  I have seen this 
technique used to some effect, but the felt integrity just disappears a year or two 
down the road.  
    You will have to harden the dead area to get anything out of these 
hammers.  I prefer lacquer to keytop. 
Regards, 



Ed Foote RPT 
http://www.uk-piano.org/edfoote/index.html
www.uk-piano.org/edfoote/well_tempered_piano.html
 <BR><BR><BR>**************************************<BR> AOL now offers free 
email to everyone.  Find out more about what's free from AOL at 
http://www.aol.com.