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Generator light won't go out

Discussion in 'Early CJ5 and CJ6 Tech' started by etu, Dec 22, 2013.

  1. etu

    etu Member

    I have a completely original 66 cj5 with generator. I left a sprayer switched on for 2 weeks and killed the battery. I recharged the battery and started it but now the generator light will not go out and seems to go brighter as the engine speed is increased.

    Seems like I recall needing to arc the generator or something to get it polarized??? Any suggestions?
     
  2. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    The voltage regulator/generator can be polarized to synchronize them when necessary. This normally means momentarily flashing a jumper wire across the Field and Battery terminals at the regulator, as I recall, but check to be sure for your vehicle.

    But I'm surprised that a dead battery would cause that problem, unless the voltage was reversed when working with it. I'm thinking more likely one contact inside the regulator is arced/burnt and stuck shut. Tried whacking it? Or more seriously, pull the cover and check.
     
    Last edited: Dec 22, 2013
  3. Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    If you have a delco generator, you jumper (flash) bat to arm. If you have the prestolite then it is as above.
     
  4. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Thanks Walt, I couldn't recall. The voltage regs I used had it printed right on the cover.
     
  5. Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Did you get it fixed?
     
  6. etu

    etu Member

    Not yet. Busy with Christmas and wasn't sure how to flash the armature
     
  7. Walt Couch

    Walt Couch sidehill Cordele, Ga. 2024 Sponsor 2023 Sponsor 2022 Sponsor

    What generator do you have? It makes a difference.
     
  8. etu

    etu Member

    I'll confirm tomorrow and reply.
     
  9. etu

    etu Member

     
  10. etu

    etu Member

    Tried to post a pic of the generator but apparently I do not have that option (permission)
     
  11. nickmil

    nickmil In mothballs.

    No one does. You need to host them o. A site like Photobucket, Flickr, etc then link them here. Covered in the Announcements section.


    Sent from my iPhone