Join Date: Dec 2000
Location: Toronto, Ontario, Canada
Re: Busted Sperzel Tuner, Salvageable?
If you can extract the busted stump of roll pin out of the housing, you could replace that with another roll pin of the same spec as original, widen your headstock hole to the right size, and go again.
A small screw extractor /might/ get a bite and get that stump moving; I think I'd actually try to get a small tap to start engaging the stump, and once it has a bite, use that as a puller to try pulling the stump straight up and out.
If you can't extract, perhaps there's a way to use a thinner solid pin tapped down into the center of the original roll pin after reinserting the large bit into the hole - the thinner solid (stainless?) pin might reinforce the original pin enough to keep it from shifting/turning in its mounting hole.
Just a couple of thoughts off the top of my head.