help me with soundboard repair? CA of course!

[Michael Magness]

First of all my mentor told me the first time I prefaced a question
with"This is probably a dumb question".
That there are no dumb questions just dumb answers! I have used a hypodermic
syringe and large needle 18 or 19 gauge
to put Titebond yellow glue between the soundboard and rib. I find them at
farm supply or veterenary supply stores,
a good brand is Lureloc, the needle threads into the syringe but both are
still disposable and not expensive.

After predrilling a hole for the 1&1/4 " sheetrock screw, make sure you get
the finethread, there are coarsethread out there as well.
I also use fender washers under the head of the screw on occasion if the gap
doesn't close as I'd
like it to. I also have larger size screws #8 & #10 in that same length in
case the #6 sheetrock strips out in the wood.
The washer can be removed at a later visit and re-used on another job. I
have washers I've been using for 20 years!

Another wrinkle, after the glue has set, you can remove the screw, drill the
hole slightly larger using a stop
or masking tape for a marker so you don't drill to far. Then insert a dowel
and some glue, hammer shanks work
well, I save broken ones for this since you only need a short 1&1/4 piece. I
only do this for those pianos where the back will
be exposed, churches, the occasional home.

I am not a fan of CA glue for this type of repair, it's not as reversable
nor do you have the working time if all doesn't go as planned.
If your Titebond sets and your gap is still there and rattles you can
soften/unstick it with a heat gun. I carry CA for emergencies
when I don't have time for Titebond such as concert situations but for
everyday use, I prefer the tried and true.


On 8/4/07, Ron Nossaman <rnossaman at cox.net> wrote:
>
>
> > Ron
> >
> > I like this.  This is also easy.  I could also do this.  And I feel
> > better about getting the soundboard back into its proper position:
> > against the rib.
> >
> > Just to understand completely...you drill the hole in the rib to let the
> > glue in to the gap; the screw however, goes through the rib and INTO the
> > soundboard.  Tightening the screw draws the soundboard into the rib;
> > that's why the glue squeezes out.  Yes?  Leave the screw in for a little
> > extra added insurance.  Yes?
>
> Yes, all around.
>
>
> > Perhaps dumb questions, but I do want to make sure I'm getting it right.
> >
> > Thanks,
> > Tom
>
> Not dumb questions at all, just clarification. That ought to
> be allowable. Whether or not it's right is a judgment call
> that makes my cut. If it makes yours too, it's a viable option.
> Ron N
>



-- 
Michael Magness
Magness Piano Service
608-786-4404
www.IFixPianos.com
email mike at ifixpianos.com
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