Action bracket knob loose and bracket rubbing on the bolt threads.....?? Mike Tom Sivak wrote: > List > > Fixed a squeaky pedal today and the solution to the probem was one > that never occurred to me, nor will anyone on this list solve it, > including you, Paul Revenko-Jones! > > Now, I'm not saying I'm any better than you guys; it's much harder to > figure something like this out from cyberspace. I had the distinct > advantage of having my hands on the piano (and an hour and a half of > time). > > But what I am saying is that the squeak came from somewhere you'll > never guess. (So, think outside the box!) > > The piano: a Yamaha P202 from the 80s. The squeak occurred on the > release of the damper pedal. It was a creak more than a squeak. Like > a rusty door hinge, it would creak 4 or 5 distinct times rapidly in a > row, almost like a cricket. It was LOUD. (You could actually release > the pedal slowly and hear each individual creak. It sounded like > somebody cracking their knuckles.) > > Here's what I did that DIDN'T fix it: > 1. Floor board was loose at the front where the movers damaged the > bottom a bit. Put more screws in to keep it from moving upon > depression of the pedal. That didn't fix it. > 2. Lubricated EVERY friction point from the pedal itself to the damper > lift rod connectors in the action. Nope. > 3. Tightened the screws on the pedal floor bracket and also the > bracket that holds the horizontal lever that connects the pedal to the > vertical damper rod. (This actually eliminated a clunk that happened > on the downward movement of the pedal but didn't affect the creak on > the upside.) > > At this point, with the clunk gone, I realized that the creak was > coming from above the keys, not below. Sure enough, I could > disconnect the vertical damper rod from the pedal assembly and with my > hands, push the damper lift rod up and there was the squeak, clear as day. > So I focused on what was above the keys. > > 4. I removed the action and moved the damper lift rod with my finger > and there was no creak. Perfectly silent. Hhhhmmmm....maybe it's the > rod itself. > 5. Yes! I found that the pedal rod had a deteriorating rubber nipple > on the top and replaced it! Nope. > 6. Put new punchings to cushion the vertical damper rod on both ends. > Still creaky. > 7. Removed the action and tightened all the screws in the action > brackets. I did find a couple that were slightly loose, but...nope, > still there. > 8. Tightened case screws on the interior of the piano. (OK, at this > point, I was grasping at straws.) > > So...here's your big clue, since this will be hard enough even with a > clue: > > *The creak only occurs when the action is in the piano. And it > happens whether you lift the dampers using the pedal or push up the > damper lift rod with your hands. Yet, take the action out of the > piano and lift the damper lift rod with your hands, and there's total > silence. Back in the piano, there it is again!* > > Any ideas? > > Prove me wrong. Somebody solve this one. I dare you. LOL! > > I won't let this go on too long, but anybody got an idea? > > Tom Sivak > Chicago > > > ------------------------------------------------------------------------ > > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.484 / Virus Database: 269.12.0/957 - Release Date: 8/16/2007 1:46 PM > -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20070816/b54d4700/attachment.html
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