<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 5.50.4913.1100" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>    When I first started = to read your post, I thought that one of the ribs might be separating near a = crack in the soundboard, but when I got to the part about it occurring on the key = release, it must be something to do with the damper, or else some = foreign object actually did get into the action cavity somehow. </FONT></DIV> <DIV><FONT face=Arial size=2>    The "safety factor" = you mention is aftertouch. You can easily check that by feel when you get there. = There has to be some. I doubt whether it's the rep lever, unless it's a case of = parts that are loose on the rail. </FONT></DIV> <DIV><FONT face=Arial size=2>    To clean the rep = springs, take your spring tool, pop the spring out to the side and clean it off. You = can hit it with a mild abrasive if you need to. If you're going to do that, at = the same time check to see that the slot it rides in isn't also gummed up with junk.</FONT></DIV> <DIV><FONT face=Arial size=2>    I think it's going = to be one of those things that become obvious when you see the piano, but leaves you scratching your head before you arrive. Hope it's not the soundboard, = though. </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </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=kpiano@goldrush.com = href="mailto:kpiano@goldrush.com">Keith Roberts</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, March 25, 2002 = 9:47 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> cellophane</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>I just got a call from a client who = said it sounded like there was cellophane in her piano when she played. It = made her jump up and look to see what was "in there". She played a few bass = notes over the phone and you could hear a definite action clatter. Then she = noticed it was occurring when she released the key. I guess I'm revealing my age = when I say I know the "sound of cellophane". I think the thing noticed most = about cellophane was the rustling noise that had an unusual crackling/pop = noise with it. Nothing quite like it. If you guys don't nail this one, I'll be = surprised. This is probably going to take me into my next field of study. I have a good understanding of key dip/hammer blow distance/let off = though I've heard talk of a safety factor/relationship that I would like = to know more about. I've taken Nick Gravanite? Action geometry and Wally = Brooks, effective weight control and couple of grand regulation classes. Now = to the repetition lever. My guess, and it's purely a guess, the noise is the = rep lever going through it's cycle. Guy Nichols class, Extreme measures, = he said "pop and buff" the rep springs. What's the best way to do that and is = that anywhere close to my problem noise?</FONT></DIV> <DIV><FONT face=Arial size=2>By the way, Guy's class is a good one = to take after lunch. you won't fall asleep. </FONT></DIV> <DIV><FONT face=Arial size=2>Keith = R</FONT></DIV></BLOCKQUOTE></BODY></HTML>