This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Oh Gordon, shame on you! ;-) =20 I know you are going to scream when you read this: the conversion for = inch to foot is 12 inches =3D one foot!=20 Expressing tuning pin torque is correct either way, but inch-pounds are = traditionally used by piano technicians. So 12 ft.-lbs. equals 144 in.-lbs. (it's feet times pounds, not divided = by). I've tuned many old uprights with tuning pin torque less than 50 = in.-lbs. - too looses for my liking, but seems to hold a tuning pretty = well. I find that anywhere in the 80 to 150 in.-lb. range will be fairly = tunable. If I had to specify my favorite, I would say 100 in.-lbs. Terry Farrell Hello List. Back to my problem Yamaha C3 grand. It has been = suggested by others=20 on the list that I check the pin torque. I have researched the = archives and also have read the section on the subject in Arthur Reblitz = book Piano Servicing, Tuning & Rebuilding. His comment on tuning pin = torque is ". . if it takes less than 50 inch pounds, than the pins are = probably too loose. =20 I read one archive comment on loose tuning pins by John Tuttle. He = states "I believe optimum torque to ne 12 Ft./lbs. I couldn't find anything more specific in the archives on the subject. Reblitz says "inch pounds" and Tuttle says "foot pounds". =20 Which should it be "Inch" or "Foot". I will assume that it can be = either. And, is there a conversion on inch to foot?. Does anyone have some suggestions on tuning pin torque. I would = assume that the torque would be basically the same wether it is a grand, = spinet or full upright. I thank you all in advance. Regards,=20 Gordon Holley PTG Associate Goshen, Indiana ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/6b/a7/b8/03/attachment.htm ---------------------- multipart/alternative attachment--
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