<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML xmlns="http://www.w3.org/TR/REC-html40" xmlns:v = "urn:schemas-microsoft-com:vml" xmlns:o = "urn:schemas-microsoft-com:office:office" xmlns:w = "urn:schemas-microsoft-com:office:word"><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.6000.16441" name=GENERATOR> <STYLE>  </STYLE> </HEAD> <BODY lang=EN-US vLink=purple link=blue bgColor=#ffffff> <DIV><STRONG><FONT face=Arial size=2>Just like unravelling the beginning of a toilet roll!  They've been making it for hundreds of years and still haven't got it right.</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial size=2></FONT></STRONG> </DIV> <DIV><STRONG><FONT face=Arial size=2>AF</FONT></STRONG></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A title=dporritt@smu.edu href="mailto:dporritt@smu.edu">David M. Porritt</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">'Pianotech List'</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, September 08, 2007 3:06 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> RE: damper rod noise</DIV> <DIV><BR></DIV> <DIV class=Section1> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue">Rick:<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue">This is one area of piano work that for the most part has failed in its evolution more than most.  Even Steinway – as reluctant to change as anyone – has replaced the bushed hole for damper rods with a better idea.  Even the wonderful Walter studio pianos have the pedal rods (rough maple dowels) running through bushed holes that make horrific noises.  If you find a piano where the positioning of the rods causes a lot of rub you’ll be much better off redesigning the system unless you just love re-lubricating them each time you see the instrument.  I wish I knew how many damper systems I’ve redesigned to get rid of the friction noise caused by that arrangement.  Not all of those systems rub hard enough to cause noise….it depends on how the levers are placed, but if you find one that makes a lot of noise, a frictionless redesign is the best solution.<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue"><o:p> </o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue">dave<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue"><o:p> </o:p></SPAN></FONT></P> <DIV> <P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">____________________</SPAN></FONT><FONT color=blue><SPAN style="COLOR: blue"><o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue">David M. Porritt, RPT<o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue"><A href="mailto:dporritt@smu.edu">dporritt@smu.edu</A><o:p></o:p></SPAN></FONT></P> <P class=MsoNormal><FONT face="Times New Roman" color=blue size=3><SPAN style="FONT-SIZE: 12pt; COLOR: blue"> </SPAN></FONT><o:p></o:p></P></DIV> <DIV> <DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"> <HR tabIndex=-1 align=center width="100%" SIZE=2> </SPAN></FONT></DIV> <P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <B><SPAN style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>richard.ucci@att.net<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Saturday, September 08, 2007 8:24 AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> pianotech@ptg.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> damper rod noise</SPAN></FONT><o:p></o:p></P></DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">OK List,<o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">I've searched the archives, but can't find the thread. Two Asian pianos, K&C (Samick) and a PR . Both uprights, with same problem. Sustain rod is making that scratchy noise . What is the lube of choice, does the bracket have to be removed to apply? Should I rebush with new buckskin? Very troublesome ....<o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Thanks,<o:p></o:p></SPAN></FONT></P></DIV> <DIV> <P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">Rick Ucci/Ucci Piano <o:p></o:p></SPAN></FONT></P></DIV></DIV></BLOCKQUOTE></BODY></HTML>