<DIV>Exactly what is driving fluid, and when how is it used. I s this good during a re-pin?? John Ross <jrpiano@win.eastlink.ca> wrote: <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Sounds like a glazed tuning pin hole. Caused by an error in drilling. Try removing the pin, and either wire brush the hole with a wire brush similar to a gun cleaning one, or swab the hole with pin driving fluid. Which I think is just spar varnish. John M. Ross Windsor, Nova Scotia, Canada jrpiano@win.eastlink.ca ----- Original Message ----- From: "Greg Graham" <GRAHAMPIANOS@YAHOO.COM> To: <PIANOTECH@PTG.ORG> Sent: Tuesday, February 22, 2005 1:44 AM Subject: snappy tuning pins >I have tuned a few pianos with a handfull of tuning > pins on each that snap: I pull, pull harder, pull > really hard, and BANG! It sounds like the string > broke, but, after my heart stops pounding, the string > is OK, and not significantly changed in pitch. These > otherwise excellent pianos are all grands without > tuning pin bushings. There must be a way to fix this. > > My theory, which I am hoping you can confirm, is that > these few pins are rubbing and binding on the plate. > The pins seem off-center, and closer to the plate than > others, but it is hard to see down in the gap to know > for sure. > > Is it possible to pull out the tuning pin, drill the > cast iron slightly larger with a hand drill (letting > the chips fall through the open hole in the pinblock), > and reinstall the pin? Are there any pitfalls? Is > this something anyone does? If the holes don't go all > the way through the block, is there a cool way to keep > the chips out? I don't recall seeing this in print. > > I suppose the next question would be: How do you get > the owner to pay for it, since it won't have a > noticable impact on the touch, tone, etc, (though a > few notes may be in better tune). > > Greg Graham > Graham Piano Service > Brodheadsville, PA > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - 250MB free storage. Do more. Manage less. > http://info.mail.yahoo.com/mail_250 > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives > _______________________________________________ pianotech list info: https://www.moypiano.com/resources/#archives </BLOCKQUOTE></DIV> Richard the "Piano Guy"