Yamaha mystery noise

[Joe And Penny Goss]

Hi Mark,
That reminded me if someone has not put the paper punchings under the felt
they can rattle as well DAMHIK
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message ----- 
From: "Mark Wisner" <mwisner@earthlink.net>
To: "Pianotech" <pianotech@ptg.org>
Sent: Thursday, November 20, 2003 10:16 AM
Subject: Re: Yamaha mystery noise


> Sometimes a balance rail hole can make the sound you described.  I have
eliminated it by smearing a a very small amount of Vaseline on the bottom of
the key, at the balance rail hole.
>
> Mark Wisner
>
> -----Original Message-----
> From: Joe And Penny Goss <imatunr@srvinet.com>
> Sent: Nov 20, 2003 8:58 AM
> To: Pianotech <pianotech@ptg.org>
> Subject: Re: Yamaha mystery noise
>
> Hi Dave,
> Lift the damper up so that it is held firmly out of the way and strike the
> note, No rattle it is in the damper assembly.
> Do the same with all strings muted, no rattle, it is most likely  a
> sympathic resonation. But if there is still a rattle  look more closely at
> the action parts including springs. Try to devide and conquer. A
mechanic's
> stethoscope might be of help to isolate an area.
> Just some wierd ideas<G>
> Joe Goss
> imatunr@srvinet.com
> www.mothergoosetools.com
> ----- Original Message ----- 
> From: "Dave Doremus" <algiers_piano@bellsouth.net>
> To: "Pianotech" <pianotech@ptg.org>
> Sent: Thursday, November 20, 2003 7:01 AM
> Subject: Yamaha mystery noise
>
>
> > Hey all,
> >
> >   I have a nagging noise in the action of a two year old C2, somewhere
> > between a click and a rattle,  the quality of teflon bushing noise
> > but repeating a bit. If that makes any sense at all. Or possibly it
> > sounds like a little mini golf pencil in exactly the wrong spot on
> > the key where it can bounce off the capstan but not hit its
> > neighbors. It appears on F#3 and a little on F3 and A3, nowhere else.
> > I have repinned, reglued hammer heads, tightened screws until I'm
> > blue in the face, even checked leg bolt washers, damper and sostenuto
> > screws and key leads. Any ideas no matter how bizarre or obvious
> > would be appreciated.
> > -- 
> > ----Dave
> >
> >
> > -----------------------------
> > Dave Doremus, RPT
> > New Orleans
> > ------------------------------
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