Pertronix with alternator and overdrive.

Hello out there. 
I was wondering if anyone out there running a pertronix ignition unit  has an alternator and overdrive is working. 
Vehicle I'd 6 volt positive ground.  I was running with pertronix ignition and overdrive worked nicely. Started having generator problems so I managed to get hold of a 6v pos ground alternator at a really good price . However since installation the overdrive will not engage. I have attached the wire that was on field of regulator to hot side of starter solenoid as suggested. But nothing. 
I was wondering if anyone outthere has experience with this. 




  • your likely still wired up to your original voltage regulator. You can’t use the regulator with an alternator. 
  • Geoff
    Geoff Senior Contributor
    Wire should have been on A. terminal of generator, not Field.  it could not have worked  that way.
  • It is a single wire alternator alternator with internal regulator so am not using old regulator.
  • Glowplug
    Glowplug Expert Adviser
    The attached diagram is provided to assist you in checking your wiring.  As noted this will work for a 6 or 12-volt alternator installation.   
  • Thank you Glowplug