I installed a dampp chaser on a nicely rewhatevered M&H AA circa 1923 which just migrated to Florida. Will be going back to tune in a month or so. Meanwhile, owner complains of a buzzing or zinging sound on G#6 which is intermittant and only appears once in a while in a certain Chopin Etude. Sure enough, no amount of my playing around with this or adjacent notes caused the problem, but I did hear it when she played the Chopin. Very short ZINGing sound as if a small screwdriver momentarily touched the string. Damper felt looks normal. Damper adjustment seems right. I could see nothing out the the ordinary, at least to my eyes. I removed the action and checked the damper wire screw for this note, it was tight. I did, however, notice that by manually lifting and dropping each damper lever, the one for G#6 caused a more metallic sound when dropped than did its neighbors. Could not figure out why. Need to be able to fix this noise upon returning next month. I have read the archives on damper zing. Dont think it is damper felt problem in this case. Wondering if loose damper lift flange or a flukey damper spring maybe could cause this sound? If so, the damper flange screws on this model appear to be inaccessable, as they are vertical. Looks as if the entire damper assemply would have to come out just to check lift flange screws. It's likely I've missed some basic thingee that everyone else knows. Hope so! I would appreciate any thoughts on troubleshooting this noise, as well as any insight on how the damper lift flange screws can be tightened, short of removing entire damper assembly. Dave Smith SW FL
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