Soundboard cracks under long bridge

[Greg Newell]

Terry,
         Jon Page just forwarded to me a system which I believe will cure 
the problem. Thanks to one an all for you responses.

Greg Newell



At 08:28 AM 3/25/2005, you wrote:
>Sound like a perfect situation for the epoxy fill. I think maybe Del has
>some PTG Journal articles describing a technique - maybe someone else -
>maybe check the archives.With epoxy you can get all the way under the bridge
>also (squoosh/moosh application technique).
>
>I haven't tried it, but the process involves taping one side of crack (to
>act as a mold of sorts) and filling other side with thickened epoxy. Make
>sure the crack/epoxy is prepared for maximum adhesion (I would seriously
>consider the West System Two-Step Method). You can color West System epoxy
>to come pretty close to spruce.
>
>Terry Farrell
>
>
> > Naturally this is what I would have done if the crack did not meander as
>it
> > does. No where near a straight line.
> >
> >
> >
> > At 08:32 PM 3/24/2005, you wrote:
> > >Why not just do a Spurlock-type shim job right up to both sides of the
> > >bridge? If there is a small area where the bridge is not glued to the
>panel,
> > >put some glue in there and block up the panel from behind and go bar on
> > >top - or use a rib gluing boat before shimming (but instead of gluing on
>a
> > >rib you will be gluing on the bridge).
> > >
> > >Make sense?
> > >
> > >Terry Farrell
> > >
> > >
> > > > Dear list members,
> > > >          I am faced with a dilemma and would appreciate your advice
>once
> > > > again. I am refinishing a 61" Howard grand and re-stringing with a new
> > > > block. After strings were removed and the piano sat in the shop for a
>time
> > > > a soundboard crack appeared which migrates under a crook in the long
> > > > bridge. This could have already been there but not as prominent as it
>is
> > > > now. I'd like to  try and repair this but I question how to go about
>it.
> > > > I've tried removing the buttons and screws that attach the long bridge
>to
> > > > the soundboard hoping that the glue would be loose enough to crack it
>free
> > > > and pivot it out of the way in order to make the repair. (There's one
> > >screw
> > > > way high up in the treble that I just can't get at for love nor
>money.)
> > > > There is not enough money to replace the board and bridges but it
>seems
> > > > that the crack will need to be addressed before it goes out. Also, in
>one
> > > > area of the crack that goes beneath the long bridge the soundboard is
> > > > disconnected from the bridge too, naturally. :-( Any advice?
> > > >
> > > > Greg Newell
> > >
> > >
> > >_______________________________________________
> > >pianotech list info: https://www.moypiano.com/resources/#archives
> >
> > Greg Newell
> > Greg's piano Forté
> > mailto:gnewell@ameritech.net
> >
> >
> > _______________________________________________
> > pianotech list info: https://www.moypiano.com/resources/#archives
> >
>
>
>_______________________________________________
>pianotech list info: https://www.moypiano.com/resources/#archives

Greg Newell
Greg's piano Forté
mailto:gnewell@ameritech.net