The CJ3A Page CJ3B.info

Author Topic: Resistor?  (Read 3816 times)

0 Members and 1 Guest are viewing this topic.

Offline BMIC

  • Willys Guru
  • ****
  • Posts: 406
  • Karma: +0/-0
  • Weekend Mechanic
    • View Profile
Resistor?
« on: February 18, 2013, 02:08:26 PM »
Between the coil and ignition switch in my wire diagram is a resistor. Do not remember seeing on on the tear down. Can anyone help me with size and type? � � � � � �
We are masters of the unsaid words, but slaves of those we let slip out... WC

Offline F Bill

  • Flatfender Master
  • *****
  • Posts: 1402
  • Karma: +1/-0
    • View Profile
Re: Resistor?
« Reply #1 on: February 18, 2013, 02:32:55 PM »
Check your coil, see if it is marked "for use with resistor" or "no resistor required".....

ALso take a close look at the wire in question and make sure somen hasn't wired in a fusible link or resistor wire.. Fusible links are normallyh marked as such, and the wire in a resistor wire is usually silver colored.
Owner of the world famous?? Pintojeep 3A and one yet to be named stock project 3A.
Based in central TX and upstate NY.

Offline Bob W

  • Flatfender Master
  • *****
  • Posts: 2309
  • Karma: +0/-0
    • View Profile
Re: Resistor?
« Reply #2 on: February 18, 2013, 04:40:08 PM »
If your coil requires a ballast resistor just type "chrysler ballast resistor" into your favorite search engine and you will have plenty of info.

Bob W

Offline BMIC

  • Willys Guru
  • ****
  • Posts: 406
  • Karma: +0/-0
  • Weekend Mechanic
    • View Profile
Re: Resistor?
« Reply #3 on: February 19, 2013, 05:12:20 AM »
Thanks Bill/Bob W, my coil does not require a resistor. Bill no fusable link in the wire as I am wiring a temporary dash for a engine test (and hopfully a short run) on the chassis.
We are masters of the unsaid words, but slaves of those we let slip out... WC

Offline johnrb3b

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 906
  • Karma: +0/-0
  • No such thing as too many Jeeps - well maybe
    • View Profile
    • Jeeps and stuff
Re: Resistor?
« Reply #4 on: February 19, 2013, 09:17:22 AM »
Nice wiring diagram. Did you do it or did it come with a wiring harness?
I'm thinking you did it.
If so, nice job.
1946 2A - - - 1949 me - older than most of my Jeeps
1954 3B - - - 1957 Wagon - - - 2010 4-door JK
past Jeeps ---> '54 3B - no tub --- '59 3B - no engine
past addiction - VW ---> '69 bus --- '70 camper

Offline BMIC

  • Willys Guru
  • ****
  • Posts: 406
  • Karma: +0/-0
  • Weekend Mechanic
    • View Profile
Re: Resistor?
« Reply #5 on: February 19, 2013, 10:03:10 AM »
Thanks John, I would love to take credit for it but I dug it up on the 2A page somewhere. Between the two pages you can find anything if you dig deep enough. I might add the Vernco site, great piece on polorizing the system.
We are masters of the unsaid words, but slaves of those we let slip out... WC

Offline Gunslinger

  • Flatfender Master
  • *****
  • Posts: 942
  • Karma: +0/-0
  • Cj3a, M38A1,
    • View Profile
Re: Resistor?
« Reply #6 on: February 20, 2013, 10:21:28 PM »
It looks to me like there is a couple things going on here, the battery  is 12v so this is a conversion wiring diagram, distributor is 6volts, coil 12 volts in the diagram.  A 12 volt coil actually runs on 8 volts, so you do have to drop your battery voltage down or it will overheat the coil and burn it out. Like mine did.  I would go to NAPA and ask for a 12 volt coil with a built in resistor, this will eliminate the resistor in your diagram and make your coil and distributor safe at the higher voltage.  

Your other option is to go with a 6 volt battery, then you can drop the resistor from the wiring completely, you will have to make sure you have a 6 volt coil if you do that.
Good luck and keep jeepin
Gun
Climbs trees, hides in the long grass, hangs out with wet dogs...

Offline athawk11

  • SMF Administrator
  • Flatfender Master
  • *****
  • Posts: 2818
  • Karma: +0/-1
  • 1949 CJ3A
    • View Profile
Re: Resistor?
« Reply #7 on: February 22, 2013, 11:23:16 PM »
On my 2A with 12v conversion, I did exactly what Gun suggested.  Bought a coil from NAPA, part no. IC14.  Has the internal resistor. $26.00 and change.  Came with a new bracket and other hardware.  Works great.

Tim
2-1949 CJ3As
1-1946 CJ2A