[pianotech] Steinway Lyre bolts...

[Mike Kurta]

    If you want a "cheap and dirty" repair try this:  Carefully unwind the copper wrapping from a new or used heavy bass string so you wind up with what looks like a long spring.  Try to preserve the winding as small as possible.  Cut to the length of the bolt hole and insert.  Use as many as necessary.  Insert the bolt and tighten.  You may have to repeat the process by adding more lengths of copper.  It will conform itself to the hole when tightening the bolt.
    If you are familiar with Heli-Coil® inserts, this works the same way.  By creating new metal threads within the wood it will be a permanent repair and removing and replacing the bolt in the future will not be a problem.  The copper imbeds itself into the stripped hole.  
    How does it hold?  On the ones I've done, I couldn't tighten the bolt any further, it really holds.  This works on legs also.  Try it, you'll like it..... Of course the best repair is the Tee-Nut process using machine bolts.
    Mike Kurta, RPT
    N. Michigan Chapter
  ----- Original Message ----- 
  From: richarducci at comcast.net 
  To: pianotech at ptg.org 
  Sent: Friday, November 23, 2012 8:22 AM
  Subject: Re: [pianotech] Steinway Lyre bolts...


  Along the same lines, I have a Baldwin "m" with stripped leg bolts. What is the recommended procedure for repair?

  Rick Ucci
  Uccipiano.com
  609-677-0444

  On Nov 22, 2012, at 9:27 PM, Rob McCall <rob at mccallpiano.com> wrote:


    Greetings,


    I have a client with an 'M' that the movers lost the wood screws/ lag bolts for the pedal lyre.


    I found an $8 screw in the Steinway catalog, but I'm really hoping not to spend that much on a dang screw...


    In the catalog it says "screw - leg & lyre button/wedge 2-1/4".  I'm guessing that's the part?  So it sounds like it's 2-1/4" long.  Does anyone have the dimensions (diam., thread count, etc.) and a photo, if possible, so I can hopefully pick up a couple of screws at the hardware store.


    Thanks,


    Regards,


    Rob McCall


    McCall Piano Service, LLC
    www.mccallpiano.com
    Murrieta, CA
    951-698-1875


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://www.moypiano.com/ptg/pianotech.php/attachments/20121123/b325335d/attachment.htm>