simon crook Posted September 14, 2019 Share Posted September 14, 2019 (edited) Hey there - Does anyone recognise this CAV dynamo - 11.5 inches long 5.5 inches diameter - 12v clockwise 1960’s no ID plate ... I have to find a voltage regulator for it and it is difficult without details - even an idea of what vehicle it may have come off would be a good start - any help much appreciated - many thanks in advance - simon Edited September 15, 2019 by simon crook Additional info Quote Link to comment Share on other sites More sharing options...
Peakrec Posted September 15, 2019 Share Posted September 15, 2019 Try one off an old Land Rover or Morris Minor, my Diamond T 980 regulator didn't work, fitted a Morris Minor one on flying leads and works well. Quote Link to comment Share on other sites More sharing options...
simon crook Posted September 15, 2019 Author Share Posted September 15, 2019 Hey there -thanks for your reply - I have bought a heavy Lucas style 130883 regulator- I will bench test it on Tuesday and hopefully it will not fry - if it does I will head for an old defender unit - cheers Quote Link to comment Share on other sites More sharing options...
Peakrec Posted September 16, 2019 Share Posted September 16, 2019 That will be fine, just make sure the field of the dynamo has been sparked to earth for negative earth or positive earth. Quote Link to comment Share on other sites More sharing options...
simon crook Posted September 16, 2019 Author Share Posted September 16, 2019 28 minutes ago, Peakrec said: That will be fine, just make sure the field of the dynamo has been sparked to earth for negative earth or positive earth. Thanks for that - the dynamo has been polarised Neg earth so hopefully all will be well - I am bench testing tomorrow- all the best - s Quote Link to comment Share on other sites More sharing options...
simon crook Posted September 17, 2019 Author Share Posted September 17, 2019 Bench tested today - with the dynamo running at 1200 rpm the regulator held steady at 8 amps - all good - thanks for your help 👍 Quote Link to comment Share on other sites More sharing options...
Peakrec Posted September 18, 2019 Share Posted September 18, 2019 That's great news. Quote Link to comment Share on other sites More sharing options...
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