1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

F134 - Engine Dies After Several Minutes

Discussion in 'Early CJ5 and CJ6 Tech' started by 1968CJ5F134, Jul 19, 2017.

  1. Walt Couch

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

    A crack in the intake area of the head could conceivably cause these symptoms. As said I would love to see a vacuum reading below the throttle plate both cold and hot.
     
  2. 1960willyscj5

    1960willyscj5 Well-Known Member

    I forget. Have you tried a known good carburetor on there? That last video the carb acted like it is not transferring from the idle circuit to the run through the gears circuit. I am wondering if the power valve is shot.
     
  3. 1968CJ5F134

    1968CJ5F134 New Member

    Tried the old carb this past weekend. did not run very well but it ran nevertheless. Same issue once everything warmed up.

    Going on vacation next 2 weeks so no more work on Jeep unfortunately. Will try vacuum gauge when I get back.

    thanks everyone.
     
  4. Jrobz23

    Jrobz23 Member

    Do you have a part# for that coil? I can't help but think this is a externally resisted coil being run without a ballast resistor.
     
  5. 1968CJ5F134

    1968CJ5F134 New Member

    When I took the jeep out of the barn it had an external coil with ballast resistor on the firewall. For sake of keeping things simple I moved over to internal. I have tried 2 internal coils (STANDARD MOTOR PRODUCTS UC15 and NAPA brand one), they both mention 'internal resistor' on the casing.

    FYI -> The voltage regulator currently on the jeep is STANDARD MOTOR PRODUCTS VR15, original one on there was a borg warner.
     
  6. jeff1960cj5

    jeff1960cj5 New Member

    This may be simplistic but you might try inspecting the gas tank. Mine had the same problem.....found a red shop rag in the tank!
     
  7. 3b a runnin

    3b a runnin Active Member 2023 Sponsor 2022 Sponsor

    I'm using NAPA coil IC 14, with internal resistor. maybe no difference
     
  8. Glenn

    Glenn Kinda grumpy old man Staff Member

    Very well could be something like that. Another thought is a non venting gas cap will cause a problem like that.
     
    ITLKSEZ likes this.
  9. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Have you tried unhooking the generator? Just let it run on the battery?