Missing plate bolt on 1997 Yamaha GP1?

[Cy Shuster]

A picture next time, I promise...  This is similar:
http://www.carusomusic.com/images/Plateboard.JPG

(Except it's a Phillips head).  It's in the raised area of the plate next to 
the rim.  Looking through the hole, there's three or four inches of air 
between the plate and the soundboard.

Since it's the very last hole in the plate on the treble side, perhaps it 
did have some special use like indexing.  But it's a very obvious hole; 
wouldn't they have put a cap on it or something?

--Cy--

----- Original Message ----- 
From: <A440A@aol.com>
To: <pianotech@ptg.org>
Sent: Thursday, February 10, 2005 10:22 PM
Subject: Re: Missing plate bolt on 1997 Yamaha GP1?


> Cy writes:
>
> << I tightened the plate bolts on a 1997 Yamaha GP1 (5'1") yesterday, and
> noticed that the one near the rim in the high treble is missing (near the 
> hitch
> pins of the 7th octave).  These are bright chrome Phillips heads, about 
> 3/4"
> diameter (the heads).  Looking through the hole in the plate, I can see 
> there's
> a hole in the soundboard below.
>
>
> Should it be replaced?  And excuse my ignorance, but would it be a lag 
> bolt
> (big wood screw)?  The hole didn't go all the way through, so I assume 
> it's not
> a nut and bolt. >>
>
> Are you sure there is supposed to be a bolt there?  Or could this possibly 
> be
> an indexing hole for plate/soundboard installation?
> Regards,
> Ed Foote RPT
> http://www.uk-piano.org/edfoote/index.html
> www.uk-piano.org/edfoote/well_tempered_piano.html