Author: Gordon (NZ)
Date: 2004-04-15 22:55
Rather than destroy a post, that has been machined to fit to close tolerances on site, I would cut through the hinge tube and rod at one end, swing the key away, in the direction of unscrewing the other-end post, then unscrew the offending post, restore it OFF the instrument (punches can now be used), return it, make a new pivot rod, and swedge the tube back to a good fit between the posts.
That is pretty standard practice, I believe, but only needed in the very worst cases, such as what seems to be described.
Heat makes a HUGE difference to the effectiveness of penetrating fluids, and also softens binding residues from the additives of inappropriate key oils.
If I screw in an already-drilled replacement post, especially if I screw it in until it bottoms, then it is most unlikely that the hole accurately aligns with the hole in the other post.
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The Clarinet BBoard
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