74 duster elelctrial help
And if your Duster has the heated back glass defrost, its wired a little differently. So we need to know that. Also if there are any modifications or add-ons to the electrical system.,
Yes '74 is a bit more challenging than '72 and earlier but nothing you can't solve.
Here's how the standard system is supposed to work.
When the engine is running and the battery is charged, electron flow is shown by the orange arrows. The alternator supplies power around 14.3 Volts.
The ammeter shows zero because the battery is not supplying power, nor is it getting recharged. Step on the brakes or turn the lights on and the ammeter stays at zero. Power is coming from the alternator.
The ammeter is calibrated aprroximately 40 amps discharge to 40 amps discharge.
Anything over 20 amps is high current, and 40 is a major problem. The correct ammeter reading depends on circumstances. For example, if the ammeter reads discharge while the engine is running, for some reason the alternator is not supplying power. If it is showing charge after starting, that's because the battery needs recharging. That's normal and not a problem.
And if your Duster has the heated back glass defrost, its wired a little differently. So we need to know that. Also if there are any modifications or add-ons to the electrical system.,
Yes '74 is a bit more challenging than '72 and earlier but nothing you can't solve.
Here's how the standard system is supposed to work.
When the engine is running and the battery is charged, electron flow is shown by the orange arrows. The alternator supplies power around 14.3 Volts.
The ammeter shows zero because the battery is not supplying power, nor is it getting recharged. Step on the brakes or turn the lights on and the ammeter stays at zero. Power is coming from the alternator.
The ammeter is calibrated aprroximately 40 amps discharge to 40 amps discharge.
Anything over 20 amps is high current, and 40 is a major problem. The correct ammeter reading depends on circumstances. For example, if the ammeter reads discharge while the engine is running, for some reason the alternator is not supplying power. If it is showing charge after starting, that's because the battery needs recharging. That's normal and not a problem.