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Re: How to shim or sleeve a barrel tenon?

Author: John Peacock
Date: 2020-02-03 16:47

Like many things, there have been past discussions on this - worth searching for.

My answer to your question would be to press you on how loose the barrel really is. You quote a 0.1mm shim, but that's clearly a very round number. Is it just slightly loose - which I would define as saying that the barrel won't fall off if you hold the instrument upside down, but it moves easily enough that it would rock when you play? If that's the case, it's easily fixed: degrease the socket and smear a thin layer of superglue around the inside. I've done this with complete success for a few old worn barrels to bring them back to modern standards of tightness.

If there's really too big a gap for this to work, then you can superglue a thin piece of plastic inside the tenon. Igalkov commented above about negative experience doing this (using epoxy). All I can say is I tried it once and was very happy with the result. I used a piece of super-thin plastic from the trays you get with plants in garden centres.

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