Seat 124 1200 electricity problem

hello. I have a Seat 124 Model D LS Motor 1200 cc. The problem I have is that during the night when I turn on the lights the intermittences or anything else go and the battery is downloaded but for the day I have no problem. I have taken it to the workshop and they tell me that Dinamo loads well. Someone can solve my problem. thank you.

Hello. I have one the same and about 14 years the same thing happened to him and I took him to a workshop and they told me that they uploaded it from the current, I do not know that, I no longer remember, but no longer gave me problems and I did not have to change any piece.

You have to check the generator load with the consumption of the lights, the problem can be from amperage coil field or rectifiers

If the dynamo works correctly, you have to adjust the Q regulator is of a mechanical type and if the contacts are in poor condition to replace the same