9N ignition question

Generator polarity depends upon battery polarity and is determined by POLARIZING both the mechanical cutt-outt electro-magnetic core and the genny electro-magnetic FIELD. This is "polarizing" is auto-magicically accomplished by arc-sparking the 2-terminal cutt-outt connections together (tractor OFF). A diode used as a 1-way switch (which is what the cutt-outt is) does NOT need polarizing, it just needs to be correctly wired to begin with. Incorrectly connected, it will drain yer battery and NOT CHARGE yer battery.

The cutt-outt relay is NOT voltage sensitive, it is operated by electo-magnetic field strength which is a direct function of current (amps) flow. But it is also electro-magnetic polarity sensitive which is how and why it connects and disconnects the genny from the battery. Howsomevers; 12-volts on yer cutt-outt will burn-out the 6-volts electro-magnetic coil.

The OEM 6-volt squarecan ignition coil has a mandatory requirement for the "infamous ballast resistor". To continue to use the OEM 6-volt coil requires BOTH the ballast resistor AND a 12-to-6 volt converting resistor. 8NE-10306 is one of many that is available.

FYI...for a while after the early 8N's, Ford offered a 6-volt, 3-wire genny conversion kit. But iff'n you want a roundbarrel 12-volt genny look, look for a Ford Falcon 12-volt genny and matching squarecan voltage regulator.

You write..... ."Please don’t write about how I should leave it 6 volts. I’m not trying to start a big debate about 6 volt verses 12 volt so no politics please"..... ...guess what? I don't care, 6 or 12-volts, but you are dangerously ill-informed about electrical circuit theory..... ...respectfully, Dell, a 12-volt advocate for the right reasons and you ain't gott the right reason.

You state:

"The cutt-outt relay is NOT voltage sensitive, it is operated by electo-magnetic field strength which is a direct function of current (amps) flow. But it is also electro-magnetic polarity sensitive which is how and why it connects and disconnects the genny from the battery. Howsomevers; 12-volts on yer cutt-outt will burn-out the 6-volts electro-magnetic coil."

In fact, the cutout relay IS voltage sensitive, and if you were to look at old-time electrical shop data sheets for these things (when people actually FIXED them), there are very specific cut-in voltage "specs" for these cutouts. This voltage spec is set by adjusting the spring tension, and the gap between the moveable arm in the cutout and the coil's polepiece.

A specific voltage level causes them to close "cut in", and a drop in voltage, combined with the magnetic field reversal that occurs when the current flow reverses when the generator stops charging, and, instead, acts as a drain on the battery, causes them to "cut out". (There are TWO separate windings in the cutout... a voltage winding and a current winding.)

And, cutouts are not really polarity sensitive. MOST cutouts are content to work at either polarity. However, it is the REVERSAL of the magnetic field that occurs when the CURRENT flow though the cutout reverses that allows them to unlatch, and "cut out".

Basically, his entire premise is full of hooie. Iff'n yer gonnna convert to 12-volts, do it right the first time. Don't be stealthy when you don't understand electricity..... ...respectfully, Dell

John