Originally Posted By TJP
Originally Posted By Mattax
Here's a typical 60s Chryco wiring strategy stripped down to the main feeds and their connections.

There is one feed from the alternator (starts with wire R6)
There is one feed from the battery (starts with wire A1A)

Power will come from either the Battery or the Alternator and then go to where ever a circuit is complete.

The welded spice where they connect together inside the car is the main distribution point.


Another question on the same subject. Looking at Mattax's 1st (simplified) diagram,

Shouldn't the alternator battery wire/circuit also be fused ??

Lets say the car is driving down the road and there is a short that blows the fusible link.
That will isolate the battery, but the alternator will continue to back feed the short as long as the engine stays running. That in turn would cause a meltdown, Correct ?? or am I missing something confused

Lets draw that out. Added the field supply and ignition to show the power keeping things running. Engine is running with power coming from the alternator at 14 volts. Battery is charged.
What happens when there is a short in wire connected to the main splice? Lets say the wire to the headlight switch rubs against a brace long enough the insulation gets worn through.

Basic-Power-diagram6x-plus-running.pngBasic-Power-diagram6x-plus-running-shorts1.png