Re: [Harp-L] Reed plate screws / tapping reed plates

[Bobbie Giordano <bobbg@xxxxxxxxxxxxxx>]

At 03:49 PM 11/10/2005, John Kerkhoven wrote:
> I've got a couple of stripped screwholes on Sp20 plates.
<...>
> It's not a critical problem, because I seem to get a good seal all the 
> same
> with the available holes. Still, any suggestions for a remedy?

You might try using a center punch [like those found here:
http://www.widgetsupply.com/page/WS/PROD/center-punch/BCX33 ]

Hold the punch perpendicular to the reedplate surface and tap the punch 
with a hammer, repositioning the punch by moving around in a circle 
around the hole to cause a circular pattern of dimples around the 
hole.  This can cause the metal to be embossed [and this really IS 
"embossing"] inward of the hole, making it smaller in diameter.  Your old 
screws should then have more purchase again [grip, that is,] when you 
reassemble the harmonica.

I'd also suggest doing this, if possible, on the side of the plate not 
coming in contact with the harmonica comb, in part to avoid and 
unevenness that might encourage airleaks between the surfaces.  That 
should work... brass is pretty malleable.

An awl or small phillips head screwdriver, even a good sized nail can 
serve as a pretty good substitute for a center punch if you don't have one.

Good luck!
Bobbie