6 volt battery cable

1/0 sems to be it, my gut reaction (with absolutely nothing to back it up) is that #2 is a bit on the skinny side for 6 volts .

http://custombatterycables.com/application/Willys.htm

Thicker is always better up to the point where it becomes too rigid to work with. I'd suggest using welding cable- good strong insulation & very flexible.

H.

H

 

Rhode Island wiring has cloth covered wire especially for Packards if you're after "correct". Can't link to it directly but scroll down on the left side of the page to "supplies" and battery cable is #5 on the list.

Strangely e'nuff it's 1/0

H.

 

On six volt systems clean connections are essential- any amount of corrosion at all will impact starting performance far more than a 12 volt system-

Six volt systems require twice as much current to the starter (nominally speaking for a given power required to spin the engine over at x rpm to start) so a bad connection (of a given resistance) will cause twice as much voltage drop to the starter than on a 12 volts system. Twice the voltage drop to the starter is a greater % power drop to the starter- i.e a 1.2 volt drop across a bad connection at 12 volts (a 10% reduction in voltage available to the starter) becomes a 2.4 volt drop to to the six volt unit- a 20% reduction in voltage. In real world terms you end up with less voltage, & as a result of the extra resistance, less current to the starter as well so actual power available to spin the engine in this example will be reduced by more than 20% (power put out by the starter equals voltage at the sarter times current through the starter).

If your battery, starter & cables are in good shape & connections are clean then it should turn over like it's just off the showroom floor.

H.