[pianotech] Clunky Noises

[David Nereson]

    Thanks.  No, I hadn't been quite that thorough (removing the 
key, bridle strap, etc.)
    --D.N.


----- Original Message ----- 
From: "Gerald Groot" <tunerboy3 at comcast.net>
To: <pianotech at ptg.org>
Sent: Wednesday, March 09, 2011 1:46 PM
Subject: Re: [pianotech] Clunky Noises


Hi David,

Do the process of elimination.  Take out the key completely. 
Sometimes just
holding the key down can fool us into thinking we have 
eliminated it as a
culprit when it may still be a part of the problem.  But if you 
remove the
key instead, it will completely eliminate it for sure real quick 
like...
Unhook the bridal wire.  Now you have eliminated the hammer from 
working
with the wippen.  Eliminate each part as necessary, until you 
can narrow
down the noise to a certain part of the action or to a certain 
area in the
action.  Take the "stuff" out if you have too and check the 
center pins,
felts, etc.

Hold the damper away from the wires so that too, is completely 
eliminated as
a possible noise maker.

As for the felt, I would just set a piece of felt on top of the 
capstan to
see if that makes it go away as the sticker comes down onto the 
capstan.
Check the alignment of the capstan to where it engages the felt 
on the
sticker.  I have had it where the key warped or something and 
the capstan
was juuuust hitting the edge of the wood of the sticker.

2 more ¢ worth.

Jer