Sunday 14 August 2011

Changing a generator to an alternator

This is work in progress on the hill climb Imp and assuming it works, was not as hard as I expected.
The old 22amp Lucas C-40-1 generator or dynamo is fine for the Imp in day to day use but with the new Lucas H4 Halogen head lights now fitted and a posibility of extra spotlights for night rallys,we thought an upgrade to an alternator was the right idea.


The original black box of the Lucas regulator is stripped of its three coils and basically used as a junction box.


You will need to drill out the rivet studs with an elecrtic drill and a 6mm drill bit.
the one pop rivet which is in the center was an addition to secure the terminal plate inside,check with a volt meter on alarm to ensure there is no internal contact when you do this?


My thanks to " the Knowledge" who can be found at

 htp://mk1-performance-conversions.co.uk/images_2/dy-alt.jpg   for publishing this method.

Tools required? an electric drill and suitable drill bit,a soldering iorn and solder with flux in it,a screw driver to fit the three mounting screws,plus some wire crimp pliers.You will also need some 2.5mm auto wire and some wire crimps to suit the terminals,one of which is quite large.The digital multimeter is handy for checking continuity once you have made the various solder joints up.


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