Talk to Ken Sloane at Oberlin.  He's brilliant.  Fun too. I learned so much from him it's amazing.  I could teach you myself, but I'll leave out a couple of things.  He taught two of us how to remake guide rails from scratch.  Go to Oberlin for Steinway teaching.  it's great. Use maple for the rail. It might be less time to make a new rail than mess with a couple of misfits. Just my 2 cents. Paul PW <table width=100%> <tr valign=top> <td width=40%>"Fenton Murray" <fmurray@cruzio.com> Sent by: pianotech-bounces@ptg.org 08/05/2008 01:44 PM <table border> <tr valign=top> <td bgcolor=white> <div align=center>Please respond to Pianotech List <pianotech@ptg.org></div></table> <td width=59%> <table width=100%> <tr valign=top> <td> <div align=right>To</div> <td>"Pianotech List" <pianotech@ptg.org> <tr valign=top> <td> <div align=right>cc</div> <td> <tr valign=top> <td> <div align=right>Subject</div> <td>Re: /steinway B</table> <table> <tr valign=top> <td> <td></table> </table> <tt>I tried to plug and re-drill a guide rail recently and had some real problems as I redrilled the plug and had the paper thin walls of my plugs come apart. So that you might have better success, here are my methods that did not work. I used poplar and tight bond. If I were to do this again ( I won't because it's so easy to make a new cap for a guide rail) I would use maple plugs, I would be very careful in my drilling to create a nicely machined hole with out splitting the rail, and I would use epoxy. Hope this can help you avoid repeating my mistakes. Fenton ----- Original Message ----- From: "Richard Brekne" <ricb@pianostemmer.no> To: <pianotech@ptg.org> Sent: Tuesday, August 05, 2008 3:07 AM Subject: /steinway B > Hi Les, > > I'd plug and redrill so as to use single layer felt. I'd also have a good > look at how close the whole set is to developing the same symptom. Could > be a great way to gain some experience in doing this kind of thing. Even > just replacing the entire bass guide rail would be good experience. > > That said... a simple plug for one guide hole is pretty easy to manage > without dismantling too much. > > Cheers > RicB > > >    I have a customer with a B. (Nice to know isn't it...........) The >    first damper after the first break is constantly clacking. I managed >    a temporary fix which lasted about six months, but it's back to >    noise making.  I'm of limited experience with such things, don't >    have any double-layered felt, and would appreciate means by which >    others have >    solved this little problem. thanks much >    les bartlett > > > </tt>