In a message dated 2/19/99 6:28:32 PM Pacific Standard Time, plumb@execulink.com writes: << I just read with interest an article in the Feb 99 Journal suggesting that repair methods for loose tuning pins are "in order of overall effectiveness: walnut or beech veneer, 3 hour epoxy, used tapered pins, sandpaper, chemical treatment, 5 minute epoxy, thin cyanoacrylate, tapping, new pins two sizes larger, and metal bushings". The article claims that the walnut or beech veneer would last about 5 - 10 years. When repinning an entire piano the rule of thumb seems to be new pins driven in that are two sizes larger. From where the installation of new pins appears in the list above in order of overall effectiveness, it would suggest doping or even tapping is better than repinning. I have found many pianos that have been doped to no avail that I have put in larger pins, and many years later they are still holding well. I would like to read some of your comments on this "order" and perhaps some comments on each method mentioned. Paul Plumb, B.Mus., PTG Associate Member Plumb Pianos The best way is to measure the original torque then test with oversize pins. 2 sizes over may not be necessary. I am stringing an upright that has around 100 pounds with 2/0 pins. By the time I remove them, the friction will reduce, so by reaming around 4-5000 undersize, testing as well, 3/0 will do. Dave Peake, RPT Oregon City, OR Portland Chapter
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