The only potential problem I can think of not drilling the block through woudl be that the pin could "bottom-out" in the tuning pin hole as a result of turning the pin in the tightening direction - obviously depends on how long a pin and how thick a block. Regarding Ron's response..... Ahhh, an honest, inclusive answer. Excellent, I love it. Terry Farrell > I don't see any evidence that it matters one way or another, other than > the through hole being guaranteed deep enough. ----- Original Message ----- >> I'm not the sharpest on new pin block installation but today I saw >> something that seemed odd. While tuning an old Baldwin Grand from the >> thirties I pulled the action and for some reason touched the bottom of >> the pin block. It was not drilled all the way through! I don't think I >> have ever noticed a shallow drilled grand pin block before. This got me >> to thinking about reasons why someone would drill this way? I came up >> with 0! This was a pin block installed by a technician here in the area. >> He is not on this list and to be truthful I don't think much of his work. >> So maybe its just one of those odd jobs that a less skilled technician >> would perform? Or maybe its a common method used on grand pin blocks and >> my blind a-s just don't know it? The grand blocks that I have dun, or >> helped do were drilled all the way through! So you guys tell me. What >> gives? Thanks! > > I can't realistically justify a mechanical case for extra skill inherent > in drilling a block all the way through, compared to not, so I'd assume a > reason. I assume the perpetrator was/is under the > impression/conviction/hope that the pinblock not drilled through is more > resistant to moisture transfer, and some benefit to tuning stability or > maintenance of pin torque levels would/did/might result. There doesn't > seem to be any real evidence that there is any benefit to doing this, nor > does there seem to be any penalty. To through, or not to through, that is > the question. A hole by any other name would be as deep as it needs to be. > > I don't see any evidence that it matters one way or another, other than > the through hole being guaranteed deep enough. > > Ron N >
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