(22-08-2021, 09:56 AM)Dave Mann Wrote: A local Ruby owner has replaced his dynamo with a Kaboto alternator as used on excavators and mowers, I'm trying to get him to divulge his method.
Looks crude, but undoubtedly works. Well done to him for managing it with what looks to be a minimal set of tools!
The Kubota ones are flange mounting and have a rotating outer body containing the magnet driven by a pulley (on the outer "gold" part in right of the photo). This means that you either:
A/ Hide it and run it off something else (prop or similar)
B/ Have it visible and bolted onto the outside of a dynamo, with the drive coming through the centre.
C/ Work out a way to have the magnet revolving concentrically inside a C35 body, leaving a reasonable "Austin 7" under bonnet appearance. Possible, but flipping tight by my judgement.
C