mk1-forum.net

My cars fitted with a dynamo, the red light on ignition goes off as normal in the daytime, indicating charging is ok, however when I put side or head lights on the red light will stay on when revved indicating it's not charging, any suggestions for what I can check?
Thanks.

Could be something as simple as a loose/slipping fanbelt. Also worn dynamo brushes or the voltage regulator is a. duff or b. needs adjusting are other possibilities.

Also check the electrical connections for the dynamo, voltage regulator, battery and engine earth strap for tightness and cleanliness.

Thanks for help. I have checked the fan belt, have also checked the brushes which seem ok. How would I go about adjusting the regulator?
Thanks.