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<DIV><FONT face=Arial size=2>Paul,</FONT></DIV>
<DIV><FONT face=Arial size=2>You say your tuning in the treble and those notes
went flat but not the bass, yet the crack is in the bass. Whatever, if the crack
is clean and white like it looks it might of just happened, in anycase, that
crack spells 'this piano can't be tuned' in my book. You can probably fix it by
lowering the tension, closing the crack up as much as possible with clamps and
replacing screws with through bolts and adding bolts as necessary. When you've
got it where you want it, let it open back up and flood it with epoxy, then pull
it shut and leave it for a day or so before raising tension.</FONT></DIV>
<DIV><FONT face=Arial size=2>Fenton</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=paul@bruesch.net href="mailto:paul@bruesch.net">paul bruesch</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">Pianotech List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, February 28, 2008 7:12
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Pinblock separation</DIV>
<DIV><BR></DIV>I was doing what started out as a 35c pitch raise today on a
1969 S&S console. Room was 71F and 15%RH. Musical, elderly owners.
About in octave 5, I heard a kinda thunk noise that sounded like it came from
below. Removed knee board, looked around, saw nothing amiss near as I could
tell. Then noticed the crack between the pinblock and back at the far
bass end. At the time, I wasn't in the habit of checking for such things prior
to starting a tuning (my really bad bad) so I'm not certain whether it was
there before. (Yes, I'll be checking that before EVERY tuning from here on
out!)<BR><BR>Decided to press on. <BR><BR>Discovered that the notes I'd just
tuned were very flat, and the 35c I'd been pitch raising now was more like
80c. As I completed my PR pass the top 6 or 8 notes were close and
required very little overpull. The low bass was also still close, but
flat.<BR><BR>Could this fairly short and narrow (about 12" x < 1/16 at
widest point) separation have that dramatic an effect? The separation did not
change from the time I first noticed it until I left after speaking to the
owners (at least 1/2 hour.) Could the thunk noise have been something
else that would cause this? I think cracked plate, but from all the reports
I've read here that is more like a shotgun blast. This thunk was like dropping
a 4" piece of 2x4 onto the bottom board.<BR><BR>Thanks,<BR>Paul
Bruesch<BR>Stillwater, MN<BR></BLOCKQUOTE></BODY></HTML>