Yamaha mystery noise

[Mark Wisner]

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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