I will be rewiring the 68 Barracuda over the winter months.
I currently have the battery relocated to the rear, and there is a disconnect
switch installed that will shut down the motor when the switch is opened.
The disconnect is wired similar to the first diagram, with one of the alternator field
wires connected to the disconnect post.

That system works, but the main power cable from the disconnect up to the starter post
is always hot while the disconnect is closed.
I do have fuses after that.

I have been considering installing a Ford Solenoid, similar to the second diagram.
That system has power to the starter only when the starter is engaged.

Adds complexity, but seems like a better way, but on the other hand I do have a disconnect
in the system.

any thoughts on this ?

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8

The second diagram is a bit too small (even after clicking on it) and I can't see what's going on with it.


Anyway, with a rear battery I'd feel a lot better with a ford-style solenoid next to the battery for the large cable running to the starter............

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Could not see second diagram . A long big not fused wire could be a safety risk. Put that ford solenoid back at battery for starter wire only. Separate wire fused at battery for ignition, alternator etc. Or if one wire system from battery is needed, find a large max fuse,200 amp? for use at battery. The longer the wire the
more chance for shorts.

I had to reduce the size of the diagram to get it to upload here at .org

I have copied it to Flicker and you should be able to see a full size copy at

https://www.flickr.com/photos/13718356@ ... datetaken/

This is not one that I originated, I copied it from a posting at FABO.
This one makes more sense than most that I have found, but I don't think that
it will shut off a running motor by opening the disconnect,
I contacted the person that drew the diagram and he said that the car will not start
with the disconnect open, but he has not tried shutting down the motor by opening the disconnect.

_________________
Doo Ron Ron and the Duke of Earl are friends of mine.....
https://www.youtube.com/watch?v=uX8Nj8ABEI8

It looks like once the engine is running, it will stay running even with the battery disconnected.

Alternator output would need it's own separate connection to the battery (with separate disconnect)

_________________
Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Correct

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 225 nitrous
64 Valiant Signet
64 Valiant 4dr 170