12V 9N question

Scott

You write....."do I need to change the point gap if I change from 6V to 12V?".....NO, points gap stays the same 0.015", 6 or 12 volts, nada mas.

You write....."Would I be correct that the plugs would be the same 6v or 12V?".....YES, sparkies stay the same, gap 0.025". Recommend AutoLite AL-437.

You write....."I convert to the aftermarket 12V front mounted coil and what do I do about the points and condenser?".....'NUTTIN', points don't care 6 or 12 volts. Condensor don't care, its rated for 200 volts.

You write....."I don't feel comfortable with the factory resistor and 12v to 6v in line resistor. Can I elimate both if I convert to the aftermarket 12V front mounted coil?".....YES, do NOT USE the "infamous ballast resistor" with the 12 volt coil. Do NOT USE a 12 to 6 volt converting resistor with the 12 volt coil, because you will be operating at 1/2 sparkies instead of a full sparkie power.

You write....."After laying idle for a few months the enging will not start".....lotta engines are that way, could be invisable corroded ignition points. Could be lost compression piston ring oilseal. If'n ya donnna wannna check yer compression and ya juss wannna play the ODDS, squirt about 1 oz/tablespoon of oil in each sparkie hole to seal the piston rings and bring up yer compression so you can start. Ford comp specs: 90 psi min dry.

You write....."My 9N has been converted to 12V and has a one wire Aleternator. Every now and then the engine quits. If it is allowed to sit for a while it will restart".....Too many N's are converted to 12 volts as a masking bandaid for tired engine.

This can be one of several things. The frontmount ignition system has 4-time related engine run problems that "cure" themselves with time to cool-off.
1) runs for about 1 hour and stops, BAD frontmount ignition coil
2) runs for about 15 mins and stops, Gunked up ignition switch
3) runs for about 5 mins and stops, clogged gas filters, check all 3
4) runs for less than 1 minute, leaky ignition condenser
NOW you have enuff information to solve your "own" problems..... .....respectfully, Dell

A 12 volt advocate for the right reasons. That said, I haven't found the right reason for my eazy starting 52 8N. And I know how to do it right the first time, infact I know 7-ways to do it right.

While your suggestion to search the archives of this great board was a good one five years ago [when you and I first met here]---- these days, if you try to search some question like twelve volt coils you are going to get hundreds of hits that would take someone days to go through and would likely confuse an EE major working on his masters thesis. The archives have just become too bulky to be of real use unless you know the answer going in and are just looking for support for your position.

I don't know what the answer is, maybe somebody with the time to do it could come up with a FAQ [frequently asked questions] area.

Oh, by the bye, some "twelve volt" front mount coils do require a resistor but not the "infamous ballast resistor". Just gotta enquire of the manufacturer of that particular coil.

Sorry if I rambled. Oh yeah, your mileage may vary