---------------------- multipart/alternative attachment In a message dated 6/7/03 12:25:18 PM Pacific Daylight Time, cedel@supernet.com writes: > I service an old upright with several very loose low bass tuning pins. > Two of them won't even hold a pitch. I tried epoxy on them, but that > didn't work. I'd like to try sandpaper in the holes. > > For those who have done this successfully, what type of sandpaper and > what grit do you use? Can I just drive the tuning pin in the hole after > fitting a sandpaper shim, or should the pin be turned in? I'd like to > give this a try on Monday. Thank you. Clyde, I just did this very thing today. I've done it several times, and it's been successful each time. I've used mid-grade sandpapers. I forget exactly the grade that was recommended to me initially, but something not-too-rough nor too smooth has worked well. Pry off the string. Measure the depth of the threads on the pin once you get it out Make a shim that wraps all the way around the pin. Insert the shim into the hole with the grit facing outward so that it's sticking out a bit, not quite flush with the plate Pound the pin into the hole until there is about one and one-half extra turn's worth sticking up. (Some people prefer to turn the pin in) Put the string on the pin. Tighten pin a turn. Voila! The only time this didn't work for me was when I used to coarse a paper. It must have eaten away major chunks of pinblock. It should take about 5-10 minutes. Dave Stahl ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/0c/62/39/fa/attachment.htm ---------------------- multipart/alternative attachment--
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