help me with soundboard repair? CA of course!

[JOHN ROSS]

One small thing, is to make sure the gyprok screw, is of the course thread 
variety. The fine thread version, can strip the hole in the soundboard.
Or possibly, the fine thread version, is not available there.
John Ross
Windsor, Nova Scotia, Canada
jrpiano at win.eastlink.ca
----- Original Message ----- 
From: "Ron Nossaman" <rnossaman at cox.net>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Sunday, August 05, 2007 12:53 AM
Subject: Re: help me with soundboard repair? CA of course!


>
>> That's easy.  I could do that. The crack is visible.  Thin viscosity CA 
>> glue would run right through the separation. Shouldn't I try to move the 
>> soundboard back into the rib first?  With a clamp or something?  Then 
>> apply the CA? Tom
>
> One of the admittedly few things I was taught that I would still do until 
> something better shows up, is this repair. A soundboard steel slid between 
> the rib and panel acts as a stop for the drill bit to keep it from going 
> into the panel when you drill through the rib adjacent to the crack. 
> Squeeze Titebond into the hole until you see it ooze out between rib and 
> panel. Insert 1.25 sheetrock screw, and drive it into the panel, 
> tightening until glue squeezes out around the rib/panel joint. Mop up 
> squeeze out and walk. I much prefer mechanical fasteners and 
> reestablishing joint alignment and contact with a wood glue to hosing down 
> an area with CA and hoping for the best. Maybe it's just a lingering 
> conviction that it ain't fixed until you've got some on your finger and 
> clamped it together, but that's how I see it.
> Ron N
>