Gene - considering all you have done and described, it sounds to me to be a materials issue: the physical characteristics (density, resilience etc) of the soft components which come into play as the key and hammer return to their original position. The knuckles, wippen heel cloth and the back rail cloth are probably on the firm/hard/non-resilient side. I find this not uncommon in Asian actions, even when new but especially after several years. I think by exchanging parts you will be able to determine where the problem is coming from. You already stated you will exchange some sample shanks and wips. Is is possible to isolate the key by lifting the hammer and putting some lead on the end of the key? Then you might be able to tell if it is the the key which makes the noise by slapping down on the back rail cloth. Sometimes, a layered back rail cloth can be quieter - you may consider that if this is the source of the noise. regards, Jurgen Goering Piano Forte Supply -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/enriched Size: 1016 bytes Desc: not available URL: <http://ptg.org/pipermail/pianotech.php/attachments/20100301/85b957c9/attachment.bin>
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