[pianotech] clunking upright stickers

[tnrwim at aol.com]

David

Have you tried replacing the hammer rest rail fetl? Also, make sure the rest rail brackets are are tight in the rest rail, and that the brackets are tight in the action brackets. And last, make sure all four or five action brackets are solid and tight on each of the bracket posts, and that none of them are loose in the keybed. 

Wim 






-----Original Message-----
From: David Nereson <da88ve at gmail.com>
To: pianotech <pianotech at ptg.org>
Sent: Wed, Mar 9, 2011 9:32 am
Subject: Re: [pianotech] clunking upright stickers



---- Original Message ----- 
rom: "Joe Goss" <imatunr at srvinet.com>
o: <pianotech at ptg.org>
ent: Tuesday, March 08, 2011 7:43 AM
ubject: Re: [pianotech] clunking upright stickers

 the clunk bay be coming from the balance and front  rail 
 bushings
 Joe Goss BSMusEd MMusEd RPT
 imatunr at srvinet.com
 www.mothergoosetools.com
    As I said in the post, it clunks even when I hold the back 
f the key down, lift up the wippen and let go  (key out of the 
icture except for the capstan screw and possibly sound being 
ransmitted into the keybed via hard backrail cloth (?))
   --D. N.


> ----- Original Message ----- 
 From: "David Nereson" <da88ve at gmail.com>
 To: <pianotech at ptg.org>
 Sent: Tuesday, March 08, 2011 1:40 AM
 Subject: [pianotech] clunking upright stickers


>    Thanks for all the replies on mating grand hammers to 
> strings.
>    Now I have a piano teacher's old upright whose 
> stickers/wippens clunk pretty loudly when returning.  If I 
> hold down the back of the keys in question, and lift the 
> wippen and let it drop, I hear the clunk.  Depressing and 
> releasing the key also clunks, sometimes just as loudly, 
> sometimes not.  I tried replacing the sticker cloth with 
> brand new medium thick action cloth.  Still clunks.  Tried 
> replacing the sticker cloth with hammer skiving felt about 
> 1/8" thick and that was slightly quieter, but not much. 
> Tried re-pinning the wippen flange. Still clunks.  Grabbed 
> both the sticker and wippen simultaneously, trying to move 
> them apart and away from each other, testing the 
> sticker-to-wippen pinning for any play, and didn't feel any. 
> The action has been regulated (no lost motion).  And it's not 
> clicks from missing butt felts.
>    Now, there's some other minor clunking from balance holes 
> that are slightly "pulley," and from key bushings that could 
> stand to be replaced, but again, when holding the key still 
> and raising & releasing the wippen, I still get the noise.
>    I told her there's always a little noise in the action, 
> and it can't be eliminated 100%, but these "clunks" seem 
> excessively noisy and are noticeable even with all the front 
> case parts in place.
>    --David Nereson
>

 


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20110309/6e2b8054/attachment.htm>