<!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 6.00.2716.2200" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV>Hi Bob,</DIV> <DIV> </DIV> <DIV>How many pins are we talking about?</DIV> <DIV> </DIV> <DIV>Where did you hear to try naphtha, I would think that would cause = jumpy pins?</DIV> <DIV>I think that would contaminate the pinblock.</DIV> <DIV> </DIV> <DIV>You have to isolate the contaminant from the pin. Seal with CA, and = shim with veneer to get the smooth feel back.</DIV> <DIV> </DIV> <DIV>I hadn't heard of sanding sealer being used either. I have heard of = spar varnish being used.</DIV> <DIV> </DIV> <DIV>From what you say the real fix is a new pinblock. Is the piano = worth it?</DIV> <DIV> </DIV> <DIV>Regards,</DIV> <DIV>John M. Ross<BR>Windsor, Nova Scotia.<BR><A href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</A></DIV>= <BLOCKQUOTE 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=Hullfam5@AOL.COM = href="mailto:Hullfam5@AOL.COM">Hullfam5@AOL.COM</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> Friday, June 07, 2002 = 10:05 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Jumpy Tuning = PIns</DIV> <DIV><BR></DIV><FONT face=arial,helvetica><FONT lang=0 = face="Courier New" size=3 FAMILY="FIXED">I am restringing an old upright, open face = pinblock, with 4/0 pins and encountering jumping and creaking in the pins.  = Torque is coming out to be anywhere from 100, 140 and 160.  Several of = the holes may have been doped as they have a black half circle, top side of = hole, about 3/8 inch deep. The jumping is so bad I don't think it will be very = difficult to tune.  I've tried reaming, naptha, sanding sealer and 3/0 pins = with small to no improvement resulting.  <BR>Bob E. Hull, RPT</FONT> </FONT></BLOCKQUOTE></BODY></HTML>