[Ford-ferguson] Re: Ford-ferguson Digest, Vol 8, Issue 15

[Chris Britton]

This is a common issue.  The front mounts used an oem ballast resistor
(A8NN 12250A or B)  .  If you went to 12v system, you would need the ballast
resistor and the dropping resistor ( 8ne10306 ).  You could also get a tisco
12v front mount coil, but would still need to use a 1/2 ohm 20 watt dropping
resistor to go in line with it. ( And not use the other 2 resistors
mentioned ).  The easiest way to get a 1/2 ohm 20 watt resistor is to buy a
2-pack of radio shack 1 ohm 10 watt resistors and solder them together in
parallel part # ( 271-131 ) .  Lots of the online distribuitors.. like just
8ns sell the 12v front mount tisco coil.

So you can either use the oem ballast resistor, a dropping resistor and the
oem 6v coil.. or a modern 12v tisco coil, and just the 1/2 ohm resistor I
mentioned.  Last option is for the electrically experienced, and that is to
convert to a moder real 12v round can type coil by building a blank
out/dummy plat to mount to your distribuitor...

Don't feel bad, electrical questions like this come up about 3 times a day
on the ford N forum at another board i frequent.

Soundguy

> Just recieved a '49 8N and have trying to decipher the wiring.  It has
been
> converted to 12V with alternator.  I have been looking at 12 volt
conversion
> wiring diagragms and it looks like if you use a 6V coil you have to place
a
> resistor between coil and battery.  Just want to confirm that if i use a
12V
> coil that i do not need this resistor.  Any explanations would be
> appreciated