Shelley, I would suggest that the spring is probably not there. Since the noise is only heard when the key activates the damper lever, I would first look at the action at notes 43 and 44. Maybe the spring is there and lodged between a couple keys. Then, possibly something at the key end felt/underlever interface. If with the action removed you can lift the offending dampers and cannot detect any difference between Eflat 4 and E4, the problem is likely not in the damper/underlever assembly. Good luck, William R. Monroe On Wed, Aug 25, 2010 at 12:11 PM, Shelley <srbanders at sbcglobal.net> wrote: > This back action was replaced about 8 years ago by another tech, I've had > problems with it all along. > > Now here is one that I need help on figuring out. > > This is a Steinway L in a basement ensemble practice room that is not air > conditioned (so windows are left open) and has a Dampp-Chaser system. > > The Eflat and E (center octave) started clicking a while ago and we just > got > time to take it apart and try to figure out what happened. The E damper > spring is gone. Could Not Find It Anywhere!!! Amazing that it still damps > and never sticks. We removed both dampers and used every method that we > could think of to find it, it must be in there because it is clicking. > Sort > of a grinding click on the return. But, Only when the keys are activating > it is it audible, when one works just the dampers there is barely a > whisper. > > What the heck is going on? Anyone ever run into this problem? We've > looked > everywhere in the action the trap, the back action. Are those springs > solid > brass? Nothing is attracted to a magnet everywhere we have tried. > > Help or ideas will be greatly appreciated. Of course, avoiding removal of > the entire damper system is the aim. > > > Thanks for your input. > > Shelley Byrd Anderson > North Park U. > Chicago > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100825/335fe8e7/attachment.htm>
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