Hi Tom, Glad you figured it out. >So, I guess it's back to work installing a new set of wippens. So you're saying that the refurbished wippens were OK with the other old parts, but not with the new? With the new Renner shanks, you also needed the new Renner wippens? I have a 70's S & S 'L' teflon type in the shop that I'm getting ready to redo but I *am* using all Renner USA parts, including wippens. Just curious. Avery >Turns out that action geometry was the culprit all along. There seems to be >a 1 to 1.5 mm difference in the action spread between the teflon and Renner >wippens. Furthermore, the balancier center pin on the teflon wippen is >considerably closer to the hammer rail than is the Renner. After I >regulated the new wippen and checked it in the piano, the backcheck worked >perfectly on a soft blow every time. Problem solved! >Tom Seay >Piano Tech Office >School of Music >The University of Texas at Austin >t.seay@mail.utexas.edu ___________________________ Avery Todd, RPT Moores School of Music University of Houston Houston, TX 77204-4893 713-743-3226 atodd@uh.edu http://www.music.uh.edu/
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