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Crank repair

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matthewmosse:
I have made up adapters for a few now, to fit 'wrong' engine outputs to whatever is required, seems most of the cheap engines I tend to pick up are taperd shaft outputs and too short, and what's been needed is parallel shaft with  keyway. It's a bit fiddly cutting the keyways by hand and matching the taper I turn to the taper on the engine but does mean I can use a cheap engine. The digger I re engined needed both hydraulic pump and engine output converting from taper to 1" parallel shaft, keyways inside and out to suit the coupling I had lying around. I reacon it was cheaper and easier than rebuilding an engine.
Sounds like you've got most of the way there with rebuild though. I geuss careful measurement before removing the donor gear and index marking all parts should help alignment on the correct shaft. Seems odd to rely on a push fit for timing, I'd have expected to find some kind of keyway or drill and peg.....

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