----- Original Message ----- From: jolly roger <baldyam@sk.sympatico.ca> To: <pianotech@ptg.org> Sent: Thursday, January 11, 2001 9:10 PM Subject: Re: Yamaha C7 Pinblock Fit Hi Todd, The tuning stability problem sounds very bad, I have no doubt a new pin block may be require. But for what it is worth, I had an ultra unstable Yamaha, and it was caused by a seperation of the inner to outer rim. It may be worth a close look. Check the bearing carefully with a compound gauge, over the 2 week tuning period. Regards Roger Hi Roger, Were you able to fix this? -=-ric
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