Avery: I've done several of these. Usually I find some blocking hammers and fix the let-off. Next tuning the same thing. If it's changing that fast you know it's probably growing. Most don't get so bad that the action won't come out, but some do if the piano has been ignored for a long time. The guy in the parts department at YC told me he had heard of an action where they had to reach in with some heavy tools and break the action brackets to get it out. Weird stuff. dave *********** REPLY SEPARATOR *********** On 6/6/2003 at 6:49 PM Avery Todd wrote: >List, > >I have some questions about this for those of you who've actually >been through it. How does one know for SURE that it's the "growing" >bracket syndrome? > >I've never actually seen it personally but I looked at a Young >Chang G-157, #059894 today that had hammers blocking on the >strings when the key was played. I could usually trip the jack >by hand and the hammer would drop some. > >What I DIDN'T see was everything I've read about it. I was able >to easily pull the action out; the drop screws didn't scrape on >the underside of the pin block, etc. > >Besides the blocking, all I could see was that the underside of >the drop screw was AWFULLY close to the front edge of the wippen >buckskin and the jacks were mostly WAY too far back under the >knuckle. > >Besides measuring the spread (which I don't know what it's supposed >to be) how can one know for sure? > >It's had water leak/damage in the middle and 1st treble section and >the string and plate are rusty there. I can also see evidence of it >by stains on the action rails and a few of the shanks. > >I just don't want to do the "growing action brackets" thing without >being sure. Any ideas how I can BE sure? Thanks. > >Avery > >_______________________________________________ >pianotech list info: https://www.moypiano.com/resources/#archives **************** END MESSAGE FROM Avery Todd ********************* _____________________________ David M. Porritt dporritt@mail.smu.edu Meadows School of the Arts Southern Methodist University Dallas, TX 75275 _____________________________
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