Leads on the underlevers are a likely source, but I would also check the drop screws. I have had occasion where they become loose from poor tapping combined with expansion and contraction in the wood and they will make a bit of a clicking/rattle noise when contacted by the balancier. If they are loose a tiny drop of thin CA at the base does the trick. David Love davidlovepianos@earthlink.net > [Original Message] > From: David M. Porritt <dm.porritt@verizon.net> > To: <pianotech@ptg.org> > Date: 11/20/2003 6:39:50 AM > Subject: RE: Yamaha mystery noise > > Check the key leads or even the leads in the damper underlevers. > > dave > > > __________________________________________ > David M. Porritt, RPT > Meadows School of the Arts > Southern Methodist University > Dallas, TX 75275 > > > ----- Original message ----------------------------------------> > From: Dave Doremus <algiers_piano@bellsouth.net> > To: Pianotech <pianotech@ptg.org> > Received: Thu, 20 Nov 2003 08:01:17 -0600 > 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 > >------------------------------ > >_______________________________________________ > >pianotech list info: https://www.moypiano.com/resources/#archives > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
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