I'm thinking a poorly fitted upper action support post( the one the knob threads onto), the "U" of the action bracket  was creaking past the post!<br><br> <div><span class="gmail_quote">On 8/16/07, <b class="gmail_sendername"><a href="mailto:ITUNEPIANO@aol.com">ITUNEPIANO@aol.com</a></b> <<a href="mailto:ITUNEPIANO@aol.com">ITUNEPIANO@aol.com</a>> wrote:</span> <blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <div style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial"><font face="Arial" color="#000000" size="2"> <div>First of all, determine that the squeak is above the key bed BEFORE messing with the bottom board  :)  On a Yamaha, damper flange springs often  squeak , but since you don't hear it when the action is out, you must have loose action rail screws, or a badly adjusted action support, or a loose key bed. </div> <div> </div> <div><font lang="0" face="Arial" size="2">Bob Maret, RPT<br>Piano Technician<br></font></div></font><br><br><br> <div><font style="FONT: 10pt ARIAL, SAN-SERIF; COLOR: black"> <hr style="MARGIN-TOP: 10px"> Get a sneak peek of the all-new <a title="http://discover.aol.com/memed/aolcom30tour/?ncid=AOLAOF00020000000982" onclick="return top.js.OpenExtLink(window,event,this)" href="http://discover.aol.com/memed/aolcom30tour/?ncid=AOLAOF00020000000982" target="_blank"> AOL.com</a>.</font></div></div></blockquote></div><br><br clear="all"><br>-- <br>Michael Magness<br>Magness Piano Service<br>608-786-4404<br><a href="http://www.IFixPianos.com">www.IFixPianos.com</a><br>email <a href="mailto:mike@ifixpianos.com"> mike@ifixpianos.com</a>