Converting from generator to alternator

[blueST]

I'm looking for a little project to do and thought converting my old tractor from a generator to a dynamo might be fun and not too complicated. At present it has a titchy generator and as I have added a few extra lights it's probably not a bad idea to make the swap.

Does anyone know of a generic basic guide to what's involved electrically? I know I will need to source a second had alternator that will physically fit.

[blueST]

Any alternator that fits will do, although having been out its tape measure earlier, I doubt there is one commonly available (I.e. Cheap) that will fit.

[blueST]

Thanks for the link. Tractor is negative earth, so,no problem there. Need to research very small alternators to find some thing suitably compact.