I did think about the pinning - it's inconsistent and I intend to remedy that. But, the fact that some of the clickers have five swings and some have nine in them I think eliminates that blame. <br>And the knuckles were actually a spongy deformed flattened mess with the buckskin gapping way away when I squeezed 'em. Just as a point of future reference, when you say "hard," is it a brittle feeling across the surface of the knuckle? Because new knuckles are quite firm and tight feeling - I don't know if I've come across hardened knuckles yet.<br>
Thanks,<br>Holly<br><br>---------- Forwarded message ----------<br>From: "David Ilvedson" <<a href="mailto:ilvey@sbcglobal.net">ilvey@sbcglobal.net</a>><br>To: <a href="mailto:pianotech@ptg.org">pianotech@ptg.org</a><br>
Date: Fri, 4 Jul 2008 19:11:47 -0700<br>Subject: RE: fixing clicking knuckles<br>
<p align="left">"Shanks
still attached to the action"....check your pinning on the
clickers...hot hide glue or titebond trim and molding would be a better
choice...you don't need much glue, especially if you have a good fit...</p>
<p align="left">Question: you were changing the knuckles because the old ones were hard? <br><br>David Ilvedson, RPT<br>Pacifica, CA 94044<br><br></p>
<div style="border-left: 3px solid rgb(0, 0, 0); padding: 5px;"> </div>
<div style="border-left: 3px solid rgb(0, 0, 0); padding: 5px;">
<hr>
</div>
<div style="border-left: 3px solid rgb(0, 0, 0); padding: 5px;">Original message<br>From: "holly quigley"
<br>To: <a href="mailto:pianotech@ptg.org" target="_blank">pianotech@ptg.org</a><br>Received: 7/4/2008 4:58:56 PM
</div>
<div style="border-left: 3px solid rgb(0, 0, 0); padding: 5px;">Subject: fixing clicking knuckles<br><br></div>
Well,
I guess I screwed up. I installed a new set of knuckles on a piano, and
now several of them click. I did some archive research and verified
that the source of my clicking is very likely that the outside of the
knuckles got glued just fine, but the cores lost contact with the base
of the slots in the course of the glue drying. I'm pretty disgusted and
frustrated with myself, and trying to just move forward proactively to
get the job done right. My question for the list is, what is the best
way to fix this? What I think happened is that in the course of
installing the knuckles, I had them pressed into the slots clean and
snug, but as I don't have a long term clamping system that won't
distort the knuckles (does one exist, by the way?), as the glue dried
the core pulled out of the slot slightly. (I did check the knuckles dry
first, and the cores appeared to fit all the way in the slots, and were
quite snug, before anyone asks) Should I try an expanding glue like
Gorilla Glue here? Or go to CA glue which will hopefully dry faster? Or
should I have just not pressed the knuckles so tightly that the
(yellow) glue all slipped out of the slot? This isn't the first knuckle
replacement I've done, but it's the first one I've done with the shanks
still attached to the action.<br><br>It's times like this that I get
overwhelmed by having learned enough early on that now I'm employed by
a boss who speaks highly of me and puts me on jobs like this. Most of
the time it's great, but I do miss the safety net of being under a
wing. :(<br><br>Thanks in advance, and wishing everyone who's celebrating a happy Independence Day,<br>Holly Quigley