Hi gang, About five years ago, over a six month period, I made three trips out of town trying to find a buzz in a new Yamaha grand (C-3, I think). No luck. Yamaha had someone else come in from farther away, and he didn't have any luck either because the noise quit just before he arrived - naturally. I finally found it by having her call me when it was buzzing, and not touching ANYTHING until I could get there. I tried to sneak up on it cautiously, playing notes in the critical range, and finally found it by thumping on the bent side with my fist. The lid locator pin was exactly centered and buzzing in the hole in the bottom bracket. The noise would come and go as everything moved a couple of thousandths of an inch with temperature and humidity swings, so it was never buzzing for long at any time. I mislocated the bracket a bit, so the pin positively rode the side of the hole, and saved the day, if not my sanity. > I also got a factory grand hammer spacing tool that >was left in a new grand. It was laying behind the stretcher, buzzing from >bass notes. This piano had a removable stretcher. Besides the usual mutes and stuff, I found a stringing crank in the bottom of a vertical. Ron N
This PTG archive page provided courtesy of Moy Piano Service, LLC