Overnight Bridge Repair

[Joe And Penny Goss]

Hi Bill,
A grand you say. I have never done this with a grand.
 But if the value of the instrument was low and the situation warrented this
is what you might try.
No need to let the tension down, in fact this would present other problems
if you did.
As a diabetic needles for meare in good supply, but you can get ones that
will work from your local farm store.
Take the plunger out of the needle, and fill the tube 3/4 full of thin CA.
With the tip of the needle at the base of the pin at the confluence of
bridge pin, string and bridge notch, slowly start the plunger into the tube.
Watch carefully and do not let the glue run.
The glue will soak into the bridge and the pin hole and become invisable
when it cures. Treat each hole twice about 5 minutes apart.
Do not use activator as if you happen to use too much you will get a whitish
film that is very ugly.
I find that if I do a whole bridge in the treble, the pitch raises slightly.
Doing just a few should not make much impact.
Time spent, 15 minutes for so few notes would be my guess.
Joe Goss
imatunr@srvinet.com
www.mothergoosetools.com
----- Original Message -----
From: "Bill Ballard" <yardbird@pop.vermontel.net>
To: <pianotech@ptg.org>
Sent: Saturday, July 20, 2002 10:52 PM
Subject: Re: Overnight Bridge Repair


> At 10:17 PM -0600 7/20/02, Joe And Penny Goss wrote:
> >Do The wobblies extend down under the bass strings?
>
> The mid treble-break: C5-C#5. The worst is G#4-A#4. In the capo
> section C#5 and D5 areal a little tipsy.
>
> >If you can reach the
> >bridge pins without spilling CA on them, that is the way you could go.
Apply
> >thinnest with the piano at pitch, and on a 45% tilt.  Apply just above
the
> >bridge pin so that it will run down onto the bridge. Then reapply a
second
> >pass being careful not to let the glue run too far.
>
> I'd have assumed the strings need to be lifted at least off the
> bridge pins, for clean application. How much sure time does the CA
> need. I'd hate to load it too early, yet time is a requirement. (I'm
> assuming because you're suggesting it, that CA repair could be done
> ("tune to pitch and stable"), in under 24 hours.
>
> BTW, this is not a vertical. This is a grand, so I won't be able to tilt
it.
>
> >One other thing you might check is the bridge notching. If it is not
> >parallel to the pressure bar and you have unequal string lengths,
> >You will get the same sound as loose pins.
>
> Not a variable here. While the capo side of the bridge is notched
> parallel to the bridge instead of capo, on the aggraphe side, it's
> parallel to the 'graphe. Both sides are equally wobbly.
>
> But I'm also very curious about whether the string leaves maple
> instead of steel.
>
> >Love those wobbly knees.
>
> Throw in two badly deteriorated ankles as well.
>
> Bill Ballard RPT
> NH Chapter, P.T.G.
>
> "Trust me, you've got all the equipment, You just need to read the manual"
>      ...........Reese Witherspoon in "Legally Blonde"
> +++++++++++++++++++++
>
>
>