Joe- No, I haven¹t checked backrail cloth, but no need. I isolated the wippen and hammer from the key by holding the key down at the back, and operating wippen and hammer with hands, and I still get the noise, so it¹s in the rep/wippen or knuckle. Paul -- Paul Milesi Registered Piano Technician (RPT) Piano Technicians Guild (202) 667-3136 (202) 246-3136 Cell E-mail: paul at pmpiano.com Website: http://www.pmpiano.com Address: 3000 7th Street NE, Apt. 204 Washington, DC 20017-1402 From: Joe Goss <imatunr at srvinet.com> Reply-To: <pianotech at ptg.org> Date: Sun, 4 Oct 2009 10:17:06 -0600 To: <pianotech at ptg.org> Subject: Re: [pianotech] Young Chang & Weber Grands: ActionClicking/KnockingUpon Quick Key Release Hi, Have you checked the back rail cloth and the way it is glued down? Joe Goss BSMusEd MMusEd RPT imatunr at srvinet.com www.mothergoosetools.com <http://www.mothergoosetools.com> > > ----- Original Message ----- > > From: Tom Driscoll <mailto:tomtuner at verizon.net> > > To: pmc033 at earthlink.net ; pianotech at ptg.org > > Sent: Sunday, October 04, 2009 8:56 AM > > Subject: Re: [pianotech] Young Chang & Weber Grands: > ActionClicking/KnockingUpon Quick Key Release > > > > Paul, > > Ditto to the comments so far. I had a client just yesterday with a Samick-10 > year old grand. Same symptom. This time it was not the returning jack > punching which I have found to be a culprit over the years.Sometimes worn > -over eased balance rail holes can contribute to noisy return, but not the > case with this Samick. > > I needled a sample knuckle with some improvement (After tightening screws of > course) Removed a whippen and needled the whip cushion on the same note . > > noise was diminished but to my beginning pianist client even with improvement > the piano is considered unplayable. She has decided to practice on a Yamaha > GH1 that was part of her new home purchase because it does not make this > noise. It does however sound like a banjo that has been outside for two > years. > > I digress here, but I was called to tune both with her intent to sell the > Samick (In this case superior to the GH1 in every way) because it had a small > chip in one keytop. I explained about the tone-tuning instability of the GH1 > and suggested that the GH1 would be the piano to sell and lets not tune it > until the weather changes.Here in New England the tenor on these will go 30 > cents wild when a cloud passes overhead. > > I think she considers the Yamaha to be the better piano because the teacher > likes it and I can't completely cure the noise in the Samick. (the teacher is > a very nice and has me tune her upright every 10 years--No kidding) > > A day in the life. > > Tom Driscoll > > > > > >> >> ----- Original Message ----- >> >> From: pmc033 at earthlink.net >> >> To: pianotech at ptg.org >> >> Sent: Sunday, October 04, 2009 8:37 AM >> >> Subject: Re: [pianotech] Young Chang & Weber Grands: >> ActionClicking/KnockingUpon Quick Key Release >> >> >> >> >> Hi, Paul: >> >> I agree with Tom about the knuckles, but you might also look at the jack >> rest cushions. They get compacted and become noisy. In some of these, I >> had to needle them with a chopstick voicing tool. Once I actually had to >> replace them with (yikes!) butt felt squares. You can see if the problem is >> those rest felts by flicking the jack tips. If they make that sound, you >> found your culprit. The sound will reverberate with the help of the >> aluminum rail. >> >> Have fun. >> >> Paul McCloud >> >> San Diego >> >> >> >> >> >> >>> >>> ----- Original Message ----- >>> >>> From: Paul Milesi <mailto:paul at pmpiano.com> >>> >>> To: PTG Pianotech List <mailto:pianotech at ptg.org> >>> >>> Sent: 10/04/2009 1:07:53 AM >>> >>> Subject: [pianotech] Young Chang & Weber Grands: Action >>> Clicking/KnockingUpon Quick Key Release >>> >>> >>> I am now responsible for servicing three 1997 Weber grands at Howard U, >>> ranging in size from the 4¹11² WG-50 to WG-57 (5¹7²) and WG-60 (6¹1²). >>> These three are now in pretty good shape overall, but need regulation. >>> There are others on campus I haven¹t seen yet, but have heard they¹re in >>> bad shape. >>> >>> Tonight I went to a hotel which is a private client of mine and re-visited >>> a 5¹2² Young Chang G-157 for the first time in quite a long while. I was >>> struck by the similarities -- same problems I¹m having with the Webers, >>> which my research had told me were made by Young Chang in Inchon, South >>> Korea. >>> >>> All these pianos have a ³noisy² action! At first I thought it might be >>> worn key bushings or loose wippen or hammer flange screws. But I¹ve now >>> taken the time to eliminate the key and the flanges. The noise appears to >>> be either (1) the repetition or jack hitting the knuckle; or (2) the jack >>> regulating button hitting the stop. The knocking/clicking occurs when any >>> key is released quickly, but not even necessarily all the way up. I >>> believe it happens when the key is released enough to let the jack return. >>> I¹m now wondering if a third possibility is the spring in the little hole >>> of the jack? If so, what¹s the fix? >>> >>> Please, this is driving me crazy! As a pianist and technician, I want to >>> understand what¹s happening here, and this is frustrating me. I believe >>> these pianos can be regulated to make them a lot better, satisfactory >>> practice instruments, but before I waste a lot of time, I¹m wondering if >>> this problem is somehow endemic to these instruments? Can this noise on >>> every key be alleviated? Does it have anything to do with aluminum rails? >>> HELP! >>> >>> Thanks, >>> Paul >>> -- >>> Paul Milesi >>> Registered Piano Technician (RPT) >>> Piano Technicians Guild >>> (202 ) 667-3136 >>> (202) 246-3136 Cell >>> E-mail: paul at pmpiano.com >>> Website: http://www.pmpiano.com >>> >>> Address: >>> 3000 7th Street NE, Apt. 204 >>> Washington, DC 20017-1402 >> >> >> >> >> >> >> >> No virus found in this incoming message. >> Checked by AVG - www.avg.com >> Version: 8.5.420 / Virus Database: 270.14.3/2412 - Release Date: 10/03/09 >> 18:34:00 > > > > > > > > No virus found in this outgoing message. > Checked by AVG - www.avg.com > Version: 8.5.420 / Virus Database: 270.14.3/2413 - Release Date: 10/04/09 > 06:20:00 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091004/d5385a1e/attachment.htm>
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