Which Coil do I need?

[ssgofish]

Hi all. Been a few years since I have posted on this site. I have a 1952 8N side mount (late model. My 6v generator has bit the dust. It's was an old workhorse before I bought it years ago, still has the old rag-wire harness.
Time to rewire and convert to 12v alternator. I am thinking about buying this 12v conversion Kit from YT but am confused about what coil I need to buy. I would just as soon replace my 6v coil to a 12v coil, no resistor.
The YT kit part # is Item #: 103140 Ford 8N 12 Volt Conversion Kit, Side Mount Distributor

My 2 questions are:
1. Is this the correct 12v coil I need to buy from YT: Item #: 105282 Coil, Ignition 12V?

2. Do I need to change gap on spark plugs when I go to 12v coil & if so what is new gap please?
Thanks for the help.

 

[ssgofish]

understood

 

[Jim.ME]

1. The description for that coil clearly says an external resistor may be needed. That means it needs an external resistor for use on a 12-volt system. The picture below shows two options YT offers for 12-volt coils that do not need external resistors. Note the descriptions reference how the coil is mounted.

2. The stock plug gap will work. Many open the gap up to .035" when they convert to 12 volts. Your choice.

Edit to add the missing picture.

 

[ssgofish]

1. The description for that coil clearly says an external resistor may be needed. That means it needs an external resistor for use on a 12-volt system. The picture below shows two options YT offers for 12-volt coils that do not need external resistors. Not the descriptions reference how the coil is mounted.

2. The stock plug gap will work. Many open the gap up to .035" when they convert to 12 volts. Your choice.

I guess i don't understand the purpose of using a resistor. Seems like you should only need it if you keep the old 6v coil.

 

[Jim.ME]

I guess i don't understand the purpose of using a resistor. Seems like you should only need it if you keep the old 6v coil.

They sell new 6-volt coils with the resistor for some units that had that arrangement in the years when they started using 12-volt systems. The common wiring had the wire from the ignition switch going to one terminal of the resistor the other resistor terminal was wired to the coil. They then ran a wire from the I or R terminal found on some solenoids to the coil terminal where the wire from the resistor connected. That wire provided full voltage to the coil while the engine was being cranked, for better starting as it bypassed the resistor. Some people still prefer to use that wiring method.

 

[HarryVanderpool]

You still have the option to have the 6V generator rebuilt.
Very affordable and would eliminate a bunch of unnecessary monkey-motion.

 

[ssgofish]

You still have the option to have the 6V generator rebuilt.
Very affordable and would eliminate a bunch of unnecessary monkey-motion.

Thought about doing that. Anyone you would recommend?