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<DIV><FONT size=2 face=Arial>Music desk stop bent allowing catchers to hit on
return?</FONT></DIV>
<DIV>Joe Goss BSMusEd MMusEd RPT<BR><A
href="mailto:imatunr@srvinet.com">imatunr@srvinet.com</A><BR><A
href="http://www.mothergoosetools.com">www.mothergoosetools.com</A></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=tnrwim@aol.com href="mailto:tnrwim@aol.com">tnrwim@aol.com</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=pianotech@ptg.org
href="mailto:pianotech@ptg.org">pianotech@ptg.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 28, 2011 9:11
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [pianotech] Clicking noise
in Acrosonic</DIV>
<DIV><BR></DIV><FONT color=black size=2 face=arial>
<DIV>John</DIV>
<DIV> </DIV>
<DIV>What I am not reading that you might have overlooked is the catcher post
into the butt. </DIV>
<DIV> </DIV>
<DIV>Wim<BR><BR></DIV>
<DIV style="CLEAR: both"></DIV><BR><BR>
<DIV
style="FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original
Message-----<BR>From: John Formsma <<A
href="mailto:formsma@gmail.com">formsma@gmail.com</A>><BR>To: Pianotech
List <<A href="mailto:pianotech@ptg.org">pianotech@ptg.org</A>><BR>Sent:
Mon, Feb 28, 2011 5:42 pm<BR>Subject: [pianotech] Clicking noise in
Acrosonic<BR><BR>
<DIV id=AOLMsgPart_1_f9f7a6ed-513c-442b-a7d8-8094a5d7df57>Wish I could post
this as a solved "puzzler", but I'm still puzzled.
<DIV><BR></DIV>
<DIV>1980 Baldwin Acrosonic. First visit 2-3 weeks ago did a pitch raise and
tuning. Pointed out to the owner the clicking noises that were ostensibly due
to the deteriorating grommets. At least that's exactly what it sounded like,
and they were deteriorating/ed. Replaced the grommets today, but there is
still noisy clicking in a number of keys. And it sounds rather like the click
that comes from deteriorated grommets.</DIV>
<DIV><BR></DIV>
<DIV>
<DIV>Observations: </DIV>
<DIV>The noise only happens when the key is struck at a mezzoforte - forte
blow. Pianissimo and piano produces no click, and neither does fortissimo. I
could not make the noise when moving the wippen/hammer by hand (from below the
keybed). But as soon as I struck the key stick, the noise was produced on
string impact (or so it sounds). It sounds like the clicking from bad
grommets, although the noise is coming from the action and not the key (placed
a firm hand on the sticker itself and struck the key, and the noise was still
there).</DIV>
<DIV><BR></DIV>
<DIV>All the usual suspects were eliminated, so I'm stumped ... unless it's
Corfam. (Which I haven't yet dealt with. Archives seem to be down, so
searching now isn't possible.)</DIV></DIV>
<DIV><BR></DIV>
<DIV>Does Corfam cause clicking sounds? I moved the backcheck back to
eliminate that as a possibility, but obviously cannot remove the jack from the
equation.There was no noticeable click when forcing the hammer back to its
rest rail (in an attempt to make the hammer butt click on the jack, if that is
what is happening). Both hammer butt and catcher surfaces are rock hard. It
used to look like leather, apparently ... there is a leatherish, ecsaine tint
there ... behind the aged look.</DIV>
<DIV><BR></DIV>
<DIV>It is not:</DIV>
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<DIV>
<UL>
<LI>bad hammer shank/head glue joints (was mfg with those "half shanks" in
the butt end. Shank replacement seemed to correct one at first, but it
came back later, and shank replacement in another made no difference.)
<LI>loose damper heads (tightened)
<LI>loose action screws (all tightened prior to grommet replacement)
<LI>excessively loose pinning (8-9 swings, and the flange held up its
weight, and moved slowly with the weight of the screw)
<LI>loose key top
<LI>loose fork at the end of the key stick
<LI>key bushings, although there is wear, I replaced one with no
difference in the noise.</LI></UL></DIV></BLOCKQUOTE>
<DIV>Did I miss anything, other than replacing the hammer butt and catcher
leather?</DIV>
<DIV><BR></DIV>
<DIV>The owner is a nice lady who sat in there with me during the whole
procedure. We were able to talk most of the time, which was nice. I told her I
was stumped, and they are OK with that. They are not asking for perfection.
However, the grommet replacement that <U><I>I recommended</I></U> was supposed
to stop the clicking, and I'd like to see it fixed. I'm not willing to do an
entire Corfam replacement for free should that be the solution. But I could
replace the worst (about 10-15), and feel like I held up my end of the
deal.</DIV>
<DIV><BR></DIV>
<DIV>Thanks in advance.</DIV>
<DIV><BR>-- <BR>JF<BR></DIV></DIV><!-- end of AOLMsgPart_1_f9f7a6ed-513c-442b-a7d8-8094a5d7df57 --></DIV></BLOCKQUOTE></FONT></BODY></HTML>