Roger & List, Back a few years, we had a thread about this very problem. One of the suggestions talked about was using a good pair of electric barber's shears and trim _just_ below the string marks on the felt. If I remember correctly, many can even be done with the dampers still in the piano. I used to have all that info saved but I think I lost it somewhere when I got a different computer at school. I also can't remember the exact subject name. Maybe someone else does? Does "Oinking dampers" ring a bell with anyone? Haven't had a chance to go check out the archives yet. Avery At 06:58 PM 01/18/01 -0600, you wrote: >Hi Stacy, > A tip to help to trim "oinking" dampers. Take a sharp >pencil and lightly trace a line on the protruding damper tips using the >under side of the string as a guide. Remove dampers. >Use a very sharp pair of surgical grade scissors to trim off excess using >the pencil line as your guide. >Every day common scissors will not cut it. Pun fully intended. >For good quality half pedaling results, it is important to remove those >long tips. If you want some coaching come a day early for the Stan Kroeker >hammer hanging seminar. >Gentleman's mustache triming scissors are also repoted to be very good for >this job, but I have never tried them. Practice on some spare felt first. >Regards Roger > > >At 12:04 PM 1/18/01 -0700, you wrote: > > > > > >Kevin, > > > >Thanks for the ideas, I especially like your remedy for "oinking" dampers. > >My own piano does this (it's old and crusty), now I have something else to > >try. > > > >Thanks again, > > > >Stacy. > >> > >> Buzzing Dampers......... Usually caused by the felt hanging down > >>between > >>the strings too far. You really have to trim them. First, you make a cut so > >>that the material hanging below the strings is no longer there, then you > >>make two more cuts on each half of the trichord, so that the damper ends > >>are > >>radiused. Then you might have to do some minor fitting. That's about it. > >>Really nothing to be afraid of, just do it very carefully. > >> I also have glued a piece of 120 grit aluminum oxide sandpaper to the > >>back of my little machinists' ruler. I use that on dampers to get rid of > >>that crustiness that can make dampers "oink". Also, make sure that the > >>bushing in the damper guide rail is not too loose. It's supposed to be > >>tight > >>enough to prevent the damper from rattling around as it seats. > >> Hope this helps. > >> > >> > >>----- Original Message ----- > >>From: "Stacy Adams" <adams_piano@hotmail.com> > >>To: <pianotech@ptg.org> > >>Sent: Wednesday, January 17, 2001 8:36 PM > >>Subject: Bzzzing Dampers > >> > >> > >> > > >> > List, > >> > > >> > I tune a Yamaha G1 (1963) for a local piano teacher who has been > >>complaining > >> > of a buzzing key (D4). It seems that the buzzing is being produced by > >>the > >> > damper, a trichord wedge, as the felt settles between the vibrating > >>strings. > >> > The damper appears to be aligned to the strings and the dampers > >>overall > >> > are in decent regulation. There are several other trichord dampers that > >> > buzz in this manner, but to a lesser degree. > >> > > >> > Is it a possibility that the problem stems from the consistency of the > >>aging > >> > damper felt? Could the design of the piano (trichord wedges to F4) also > >>be > >> > a contributing factor? > >> > > >> > Any ideas to cure this annoying bzzzzz would be much appreciated! > >> > > >> > Many thanks, > >> > > >> > Stacy Adams > >> > PTG Associate > >> > > >> > > >> > > >>_________________________________________________________________________ > >> > Get Your Private, Free E-mail from MSN Hotmail at > >>http://www.hotmail.com. > >> > > >> > > > >_________________________________________________________________________ > >Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > >
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