A few questions, please.
1. Is 'Kemble' or 'Yamaha' indicated anywhere on the harp or fallboard? Is there a serial number?
2. Are the burrs visible to you? If not, then how did you test for presence of these?
1.I'm never seen alive 'Kemble'
'Yamaha' on the harp (right) where hight sound. But I seen a serial number only grand.
or fallboard. I don't know.
2. That's the dog is buried. We are unfortunately not only did not see it, but do not know about the existence of such a burr on body of a pin. In the video is a burr on the end of a pin.
Even when it is press-fitted in the factory it's partly ruined wooden surface bush and holes of pinblock .
I found this pin only because the lady owner of the piano, she called a week later after my visit. She said: "You spoiled my piano. One key gives disgusting sound!"
I came in and made sure she was right. I corrected it, apologized for the inconvenience caused and would like walk to my home. As at the time when the lady start play but the string "screeched." It was the same pin.
I realized that the problem in this pin. I would have to put 3 mm. shim of cardboard, when carefully examined the pin and saw a burr on it's body. Then I decided to first put the cardboard shim.4, 5 mm. I left the pin on memory, but I'd instead set a new pin here. The piano works well for more than seven years. Corrugated cardboard works wonders " in golden hands" if solution of the problem is repair of ill wooden hole. I actually restored the hole which was spoiled groove from defective pin.
Here's a song-tale.