1965 Dart Charging System Question
As far as I know, the ignition wires all go direct to the firewall connection. But I haven't looked at a 65 or a 65 diagram to say absolute.
The alternator and battery feeds first go to the main splice as shown in the previpous post.
I forgot to mention that when checking the voltage drops from either the battery or the alternator, check the ammeter.
When using battery power, the ammeter will show how much flow is going out.
When running on the alternatior, the ammeter will show how much current the battery is using to recharge. A low battery seeing 14.3 Volts might be draw 30 amps, but one that is fully charged will draw zero. That's a big differenece when considering voltage drop. In the first case the alternator is providing current to ignition and maxing the rotor plus 30 amps to the battery. In the second case its providing power to the ignition and minimal to the rotor for a total of 2 to 4 amps.
Above scenario we can be confident that the voltage at the battery is the same as voltage at the main splice.
However we don't know what the alternator's output voltage is.
In the scenario below, voltage at the battery will be less than at the main splice. Because current is flowing through that wire, some resistance must be expected the wire and at each junction.
If the insulation is brittle then likely at some point it got hot - too hot. I say likely - there may be other environmental causes - you know the car and its history and I don't.
As far as I know, the ignition wires all go direct to the firewall connection. But I haven't looked at a 65 or a 65 diagram to say absolute.
The alternator and battery feeds first go to the main splice as shown in the previpous post.
I forgot to mention that when checking the voltage drops from either the battery or the alternator, check the ammeter.
When using battery power, the ammeter will show how much flow is going out.
When running on the alternatior, the ammeter will show how much current the battery is using to recharge. A low battery seeing 14.3 Volts might be draw 30 amps, but one that is fully charged will draw zero. That's a big differenece when considering voltage drop. In the first case the alternator is providing current to ignition and maxing the rotor plus 30 amps to the battery. In the second case its providing power to the ignition and minimal to the rotor for a total of 2 to 4 amps.
Above scenario we can be confident that the voltage at the battery is the same as voltage at the main splice.
However we don't know what the alternator's output voltage is.
In the scenario below, voltage at the battery will be less than at the main splice. Because current is flowing through that wire, some resistance must be expected the wire and at each junction.
