<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 10pt; BORDER-TOP-STYLE: none; FONT-FAMILY: Arial; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; BACKGROUND-COLOR: #ffffff; BORDER-BOTTOM-STYLE: none">Bill, Barn Owl, Spurlock has articles on replacing upright damper felts.   Find them and you will be enlightened...<BR><BR>David Ilvedson, RPT<BR>Pacifica, CA 94044<BR><BR><BR> <DIV style="PADDING-RIGHT: 5px; PADDING-LEFT: 5px; PADDING-BOTTOM: 5px; BORDER-LEFT: #000000 3px solid; PADDING-TOP: 5px"> <HR> Original message<BR>From: KeyKat88@aol.com<BR>To: pianotech@ptg.org<BR>Received: 7/21/2006 4:44:33 AM<BR>Subject: Longer dampers than original<BR><BR> <DIV align=left>Greetings, </DIV> <DIV> </DIV> <DIV>          Is it a bad idea to replace dampers on an old upright with ones that are longer, we're talking about 3/8" longer (3/16ths at each end). ...and this would be for the bass's bi and mono dampers only. Is the longer length going to cause a problem when the damper goes to lift? </DIV> <DIV> </DIV> <DIV>Also, while I am in there, is it a good idea to verrrry slightly (bend) each damper's spring wire so that it strengthens their pressure on the strings? Is there a way, perhaps a gage, to measure the pressure of these springs? If it can be measured, what should it be?</DIV> <DIV> </DIV> <DIV>Thanks</DIV> <DIV>Julia Gottshall,</DIV> <DIV>Reading, PA</DIV></DIV></BODY></HTML>