Dave,
How much CA did you use? It's about $10 for 2 oz., (and as I wrote earlier, I'd rarely use that much for an entire block) not real expensive in my book, if it can keep an instrument tunable till a rebuild is possible (or the piano is junked for other reasons).
Admittedly, not a pleasant experience, yours. I've never had it happen to me, but I can see that it wouldn't be a nice introduction. Definitely hard to know everything beforehand. I don't know how you'd diagnose that type of separation. And, even if you managed to get it level, if it's separated, the CA will typically run along the first seam it hits, so probably still wouldn't have gotten in the block.
Oh, well. If the same thing happened to me, it would not make me less likely to try again. I think yours is the exception, Dave.
Best,
William R. Monroe
I CA'd a grand pinblock yesterday, and it did tighten up the pins, but I don't think all that much CA got down the tuning pin holes. There was a gap between the bottom of the plate and the top of the block, and the top surface was downhill toward the belly rail, so a good deal of my CA ran toward the back edge of the pinblock and dripped down onto the newspapers I had on the keybed. What a waste! The stuff ain't cheap.
But how could I have known in advance that the top of the pinblock wasn't level? The top of the plate surrounding the tuning pins seemed level. If I had known, I would've jacked up the rear leg a bit. But how far? If the plate above the pinblock isn't precisely a uniform thickness, you can't be sure.
Now I'm reluctant to CA again if there appears to be a noticeable gap between the plate and block (I suppose there's always some), for fear the CA will just run all over the top of the pinblock and not get down the holes.
--David Nereson, RPT
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