01-08-2019, 02:18 AM
For those without a reasonable grasp of matters electrical the Austin wiring diagrams are obtuse despite the extreme simplicity. Owners of later cars have the benefit of the Cornforth circuit diagram. For others have to draw your own. The Cornwall site article A Charging Refresher covers the charging circuit (although care necessary to associate diags with correct text) and helps especially where parts mixed.
The standard test of a dynamo is to isolate from car wiring, join F and D with an old 12v bulb from the junction to earth. As revs are modestly increased the bulb will glow very bright. Make sure wired into car as normal before running again.
The standard test of a dynamo is to isolate from car wiring, join F and D with an old 12v bulb from the junction to earth. As revs are modestly increased the bulb will glow very bright. Make sure wired into car as normal before running again.