Citroen Specials Club - the club for all lightweight cyclecars

Hello

I have been fiddling about with alternators on my Lomax and accidentally making things spark etc and now nothing seems to be charging.

1 - The ampere seems to suggest there is a small charge going into the battery on start-up but then a fuse blows, and then no charge to battery. Any idea's why this is happening?
2 - How can I test if the alternator is working, if I put a 12v volt meter across the alternator contacts when spinning it shows no change. I have tried this on two alternators.
3 - I had the old 2CV voltage regulator on the car which I tried swapping with a modern electronic sealed unit. The new regulator says in the instructions.... 1 Positive; 2 Negative; 3 Field Exciter. How do I know which wires are which from the old regulator, as nothing on old regulator to say which wire is which. With new regulator connected I do not seem to be blowing fuses, but only minimal movement on the ampere meter needle. Having said that I may have the wires wrongly connected.

As you can imagine I have got myself in a right pickle with this .... I never was that good on electrics.

Many Thanks

Kevin

Hello,
I will think that a voltmeter on the batterie should tell you if the regulateur is charging. With some rev on must be around 14Volts..
Regards
Paul

See here (the first diagram has the Citroen colour codes);

http://2cvstuff.com/Files/Wiring/Wiring%20Post%2081.pdf

Or;

Thanks ..... very useful information

I had issues with mine too. Tried new brushes, even sourced a good spare to no avail. In the end I found it was the connection at the ignition. It was scotch locked and was a pretty dire connection.

Ended up basically rewiring the lot as the deeper I delved, the more dubious I found the whole wiring!