Today s charging systems are implemented with ecm or computer control circuitry. Firstly let s start by looking at a basic schematic diagram of the system.
So if the dynamo is non vented and charges at over 15 amps the regulator is either broken or the wrong model.
Wiring diagram for car charging system. Automotive wiring mazda 929 engine electrical circuit and charging system checking procedures the 1975 mazda 929 is equipped with a 12 volt battery consisting of six cells which capacity is 50 ampere. You can see from the diagram that there are only four main components to the lucas charging system if we ignore all of the switches bulbs and other accessories for the time being. Discontinue immediately and either replace or investigate but the dynamo is probably beyond economic repair.
Often times the instrument cluster is tied into the charging system and a network communication or electrical fault. If smoke or flames are coming out of the dynamo this is a clear indication that it is faulty. These are the battery the ammeter the dynamo and the voltage regulator.