Tom: I suspect the sandpaper has waded up or the CA glue is causing you problems. Just remove the pin, carefully removing the coil so you can reuse the original string. Make sure hole is clean....use 4/0 tuning pin drive in until you can replace coil...pull up to pitch...then drive in until just a hair above level...pull up again to pitch and check to see if level with other pins. This ain't no hill for a climber. Yes, I believe the 4/0 pins will hold as long as the others are holding and maybe longer. If they don't, replace the pin block. You can use steel wool instead of sandpaper if you wish. Remember, never work on another piano in a garage....excessive moisture and excessive dryness can cause major problems some of which you may be facing now. I hope I am right and this helps. Tommy Black Decatur, Ala.
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