Jer I don't think that's the problem, but?I'll take a look and give it a try. Thanks? Wim -----Original Message----- From: Gerald Groot <tunerboy3 at comcast.net> To: pianotech at ptg.org Sent: Sat, Aug 1, 2009 6:08 pm Subject: Re: [pianotech] after ring on bass damper Hi Wim, ? Have you tried checking the damper guide rail bushings?? I mean, very closely?? I had this once on a Yamaha 9 footer.? It was a constant problem.? Even though I had plenty of travel and I couldn't get the damper to seat any better than it did and even though it lifted and dropped very nicely through the damper guide rail bushing hole, (or so I thought) I finally removed the damper, cleaned the damper wire, checked it to make sure it was going straight up and down, it was, and then ever so slightly, I reamed out the damper guide rail bushing hole.? In this case, the problem vanished immediately.? Apparently, it was just tight enough, to hold up the damper wire enough to allow that tiny bit of ring though.? ? Jer ? From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of wimblees at aol.com Sent: Saturday, August 01, 2009 11:04 PM To: Pianotech at PTG.org; caut at ptg.org Subject: [pianotech] after ring on bass damper ? I've got a Kohler & Campbell 5'9" grand that has very noticeable after ring on B1 and C2. At the convention I asked Roger Jolly about it, and he showed me how to "voice" the damper felt, by sticking a long needle into the felt, first from the front, and then from the back. He demonstrated this technique on several notes on a couple of different pianos,?and it worked quite well. But yesterday?I went to the piano in question, and tried to do the same thing. I got the damper to work a little better, but there is still a lot of after ring. This is not a sympathetic vibration coming from another string. The damper is properly seated, with plenty of follow through. The actual ring of the string stops, but there is excessive after ring. It goes away when I put just a little bit of pressure on the damper head. ? I'm open to other suggestions. Willem (Wim) Blees, RPT Piano Tuner/Technician Mililani, Oahu, HI 808-349-2943 Author of: The Business of Piano Tuning available from Potter Press www.pianotuning.com avast! Antivirus: Outbound message clean. Virus Database (VPS): 090801-0, 08/01/2009 Tested on: 8/2/2009 12:08:05 AM avast! - copyright (c) 1988-2009 ALWIL Software. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20090802/45f8523e/attachment.htm>
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