<!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 6.00.6000.16640" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>John,</FONT></DIV> <DIV><FONT face=Arial size=2>Maybe this has been pointed out already but in my experience many P22s and broken bass strings go together like red beans and rice. Poorly scaled in the bass, these pianos have had scale re-designs done and are available. I think Yamaha has a new scale as well as some of the bass string manufacturers. I have had a few of these with popping bass strings that I have fixed with a new set of rescaled bass strings. Of course you could do this re-scaling yourself but these sets are available off the shelf and seem to work fine.</FONT></DIV> <DIV><FONT face=Arial size=2>Fenton</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=ed440@mindspring.com href="mailto:ed440@mindspring.com">Ed Sutton</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=formsma@gmail.com href="mailto:formsma@gmail.com">John Formsma</A> ; <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, April 18, 2008 4:29 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Failed string splicing -- charge for time?</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial size=2>John-</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Good hypothesis that something may have been binding under the pressure bar. When raising pitch, the section by the tuning pin will be under greater tension than the speaking length. There will always be some friction under the pressure bar.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Also consider that different manufacturers' wires will have somewhat different breaking tensions. I can't think of any reason not to go up to a .040 leader in this case. (Larger diameter will be stronger.) </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>The technique of splicing a wound string at the top of the winding, in the speaking length, works remarkably well, and would give you a few more chances.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>When the original core wire breaks in the splice, there's probably no solution but replacing the string.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Should you charge? I'll leave that to better business minds than mine.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Best regards,</FONT></DIV> <DIV><FONT face=Arial size=2>Ed</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=formsma@gmail.com href="mailto:formsma@gmail.com">John Formsma</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A title=ed440@mindspring.com href="mailto:ed440@mindspring.com">Ed Sutton</A> ; <A title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Friday, April 18, 2008 6:53 PM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Failed string splicing -- charge for time?</DIV> <DIV><BR></DIV> <DIV class=gmail_quote>On Fri, Apr 18, 2008 at 2:18 PM, Ed Sutton <<A href="mailto:ed440@mindspring.com">ed440@mindspring.com</A>> wrote:<BR> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <DIV bgcolor="#ffffff"> <DIV><FONT face=Arial size=2>John-</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>In this situation you could have used a larger diameter leader.</FONT></DIV> <DIV><FONT face=Arial size=2>I wonder if something in your splice technique is making a ding in the wire.</FONT></DIV> <DIV><FONT face=Arial size=2>Were you splicing in the speaking length, or above the top bearing bar pin?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV><FONT color=#888888> <DIV><FONT face=Arial size=2>Ed Sutton</FONT></DIV></FONT></DIV></BLOCKQUOTE></DIV> <DIV><BR></DIV>Ed, <DIV><BR></DIV> <DIV>The first time, I used a larger diameter leader. The second time, I used the same size as the original core.</DIV> <DIV><BR></DIV> <DIV>I don't think anything that I did would have made a ding in the wire -- at least not where it broke. The splice was in between the pressure bar and the tuning pin.</DIV> <DIV><BR></DIV> <DIV>And regarding your subsequent e-mail, it was the leader wire that broke each time. The original wire and splice loop were obviously fine, since neither broke. :-)  Usually, it's the other way around when I do it -- the original wire breaks, and the leader wire is fine.</DIV> <DIV><BR></DIV> <DIV>You could see small indentions in the V-bar, but it looked normal. So I don't think the string was impeded by anything that might cause it to break under tension.  (I couldn't feel the back side of the pressure bar.)<BR clear=all><BR>-- <BR>JF</DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>