Alternators
More later.
Mexican & SA cars are generally different, as are Australian Valiants, and to lesser degree as are US/Canada export builds for RHD.
Most Chrysler products of the era will have gages for charging, coolant temperature, and fuel level; a warning light for oil pressure, and the brake warning light.
If that's what your car has, the only one of possible interest a the moment will be the one that shows charging or discharging of the battery.
Power for to the instrument lights, the other gages and lamps is a whole other kettle of fish.
I'd stay focused on the power feeds and voltage regulation circuit.
The scheme for powering the alternator field is "ignition fed". This means the power for the field circuit is tapped off the ignition circuit. When the key is in Run position, power is available in the ignition circuit.
Up through '69, Chrysler used field positive switching for regulation. In '70 they used field negative switching. All that means is the regulator switched the earth connection on and off instead of the positive connection.
Below illustration shows the basic power feed circuit.
Whether power comes from the alternator or the it comes from the battery, the big welded splice distributes power for everything but the starter.
There are also other splices that act as distribution points. The accessory circuit has an important one. "Accessories" covers just about everything other than running the engine.
When the engine is running, power to the field comes from the ignition circuit.
This shows the current flow to the field with a positive switching regulator.
The earth switching regulator arrangement scheme is similar, except that the field negative brush has a wire connection to the regulator.
Actually I wouldn't replace anything until you understand the wiring scheme. The schemes Chrysler and other used at the time were generally very simple, but did use splices.
More later.
Mexican & SA cars are generally different, as are Australian Valiants, and to lesser degree as are US/Canada export builds for RHD.
Most Chrysler products of the era will have gages for charging, coolant temperature, and fuel level; a warning light for oil pressure, and the brake warning light.
If that's what your car has, the only one of possible interest a the moment will be the one that shows charging or discharging of the battery.
Power for to the instrument lights, the other gages and lamps is a whole other kettle of fish.
I'd stay focused on the power feeds and voltage regulation circuit.
The scheme for powering the alternator field is "ignition fed". This means the power for the field circuit is tapped off the ignition circuit. When the key is in Run position, power is available in the ignition circuit.
Up through '69, Chrysler used field positive switching for regulation. In '70 they used field negative switching. All that means is the regulator switched the earth connection on and off instead of the positive connection.
Below illustration shows the basic power feed circuit.
Whether power comes from the alternator or the it comes from the battery, the big welded splice distributes power for everything but the starter.
There are also other splices that act as distribution points. The accessory circuit has an important one. "Accessories" covers just about everything other than running the engine.
When the engine is running, power to the field comes from the ignition circuit.
This shows the current flow to the field with a positive switching regulator.
The earth switching regulator arrangement scheme is similar, except that the field negative brush has a wire connection to the regulator.