<html> Hi Alan,             A dab of CA glue will be a lot better.  That dope attracts moisture, and can lead to other problems. There is often a hair line crack from the birds eye, that's the cause of the problem, the CA will solve that also, dope will not. Fixed many in this manner. If I fix the birds eye I will always ream, and go up a size for the new pin. Regards Roger At 03:27 PM 12/16/02 -0600, you wrote: <blockquote type=cite class=cite cite>Interesting question about what I see as an imperfect science, at best. I'm wondering if just testing the hammer for side-to-side motion while holding the butt (upright) or flange (grand) would be accurate enough to indicate wobble problems.   Here's a weird idea: Has anyone tried a drop of "pinblock restorer" in a worn birdseye to tighten it's grip on the pin? The most horribly wobbling hammers obviously occur when the pin has slipped out of one side of the flange, which surely indicates a worn birdseye, rather than redoing the bushings and repinning, I wonder if "dope" would work.   Alan Barnard Salem, MO <dl> <dd>----- Original Message ----- <dd>From: <a href="mailto:Wimblees@aol.com">Wimblees@aol.com</a> <dd>To: <a href="mailto:Pianotech@PTG.org">Pianotech@PTG.org</a> ; <a href="mailto:caut@ptg.org">caut@ptg.org</a> <dd>Sent: Monday, December 16, 2002 1:58 PM <dd>Subject: those pesky swings <dd>We all know that a hammer is supposed to swing 4 - 8 times. If it is less than 4, then the bushing is too tight. If it's more than 8, supposedly the bushing is not tight around the pin, and that might cause the hammer to wobble up to the string, which will eventually lead to uneven wear on the hammer, whcih creates tone problems, ya da, ya da.  <dd>So here is the problem. I've got this hammer with only 3 swings. So that mean the bushing is too tight. Before I take the pin out, ream the bushing, and put in the same size pin, I put a little Protec on the bushing. But now, all of a sudden, I've got 10 - 12 swings. According to the above presumption, the bushing is now not tight around the pin any more. <dd>Or is it? Has the introduction of Protec shrunk the bushing to the point I need to ream and repin with a larger pin? Or do I leave the original pin in there, and allow the 10- 12 swings? <dd>Wim </dl></blockquote></html>