<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <TITLE>Message</TITLE> <META content="MSHTML 6.00.2800.1476" name=GENERATOR></HEAD> <BODY> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>Thanks everyone for replies.  </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>I checked this action briefly; didn't have time to take everything apart...</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>There are a couple of different schools of thought amongst the techs at this dealer. = </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>One believes that the wippen flanges are pinned too loosely or are too = loose. </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>I had originally believed it was key bushings being excessively loose. </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>The key bushings are loose, but the noises are still there when you hold the key = still and 'bob' the wippen up from below. </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>The knuckles feel like rocks!  I tried to stick a voicing needle from = the side, into the felt under the buckskin...could barely get it in there.</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>Any remedy other than replacing all the knuckles?  </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>I lightly roughened a few with sand paper, and it did have some effect.  </SPAN></FONT><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004>Although I don't really want to tear up = buckskin on the whole action do I? </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>Also tried some fabric softener on one, no immediate change, but maybe when I see = it again Monday.</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004> </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>It seems as if every surface that makes contact with a moving part is too hard. </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>-Knuckles contacting tops of jacks on rebound</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>-Rep lever regulating screw contacting its (hard) rest felt</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>-Jack contacting its return cushion</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>-Hammer contacting hammer rest rail felt (this one actually uses keyframe felt, woven/dense)</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>-Maybe even wippen cushion contacting capstan </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004>    (on a hard blow, wouldn't = the wippen actually separate from capstan, although very briefly?  I suppose = it depends on key weighting)</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004>Anyway...what else can I do to these rock = hard knuckles? </SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004>Thanks!</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN = class=578124611-11122004>Brad Smith, RPT</SPAN></FONT></DIV> <DIV><FONT face="Trebuchet MS" size=2><SPAN class=578124611-11122004></SPAN></FONT> </DIV> <BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px"> <DIV></DIV> <DIV class=OutlookMessageHeader lang=en-us dir=ltr = align=left><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> = Avery Todd [mailto:avery@ev1.net] <BR><B>Sent:</B> Sunday, December 05, 2004 5:14 = PM<BR><B>To:</B> Pianotech<BR><B>Subject:</B> Re: Noisy Action troubleshooting<BR><BR></FONT></DIV>Brad, <BR><BR>Another possibility = is very hard buckskin on the knuckles. I just <BR>finished replacing a set on = a brand new grand in the store I do <BR>some work for. It really helped! = <BR><BR>Avery <BR><BR>At 11:45 AM 12/5/04, you wrote:<BR> <BLOCKQUOTE class=cite cite="" type="cite"><BR> <DL> <DD>----- Original Message ----- <BR> <DD>From:</B> <A href="mailto:staff@smithpiano.com">staff</A> = <BR> <DD>To:</B> <A = href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> <BR> <DD>Sent:</B> Sunday, December 05, 2004 3:29 AM<BR> <DD>Subject:</B> Noisy Action troubleshooting<BR><BR> <DD><FONT face="Trebuchet MS" size=2>Hi All, </FONT><BR> <DD><FONT face="Trebuchet MS" size=2>This week I will be = diagnosing a new, very noisy, Nordiska grand action for a concerned dealer. = </FONT><BR> <DD><FONT face="Trebuchet MS" size=2>Nordiska is Chinese = manufactured as you probably know. </FONT><BR> <DD><FONT face="Trebuchet MS" size=2>Excessive action noise, = present thru whole action, but worse on some keys/sections</FONT> <FONT face="Trebuchet MS" size=2><SNIP></FONT><BR> <DD><FONT face="Trebuchet MS" size=2>. <BR></FONT><BR> <DD><FONT face="Trebuchet MS" size=2>Brad Smith, = RPT<BR></FONT><BR> <DD><FONT face=arial size=2>    = Brad,<BR></FONT><BR> <DD><FONT face=arial size=2>    Another source = of noise is very hard jack regulating punchings (makes noise when all comes to = rest.)<BR></FONT><BR> <DD><FONT face=arial size=2>    I've replaced = under warranty on some Y.C. and Samicks in the past.<BR></FONT><BR> <DD><FONT face=arial size=2>    Just one thought.<BR></FONT><BR> <DD><FONT face=arial size=2>    Tom Driscoll RPT<BR></FONT><BR> <DD><FONT face=arial size=2>    </FONT><FONT face="Trebuchet MS" size=2><BR></FONT></DD></DL></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>