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134f Tune Up Issues

Discussion in 'Early CJ-5 and CJ-6 Tech' started by 60CJ5, Jun 5, 2018.

  1. Jun 23, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    what plug wires did you use?
     
  2. Jun 23, 2018
    pfmg

    pfmg Member

    Billerica Mass
    Joined:
    Feb 10, 2010
    Messages:
    241
    I used the petronix wires
     
  3. Jul 3, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    At last, it is running again. set timing to a little before 5 BTDC and it is pulling constant 20" of vacuum at the intake (drops to 15 when I rev it up). need to check at the T to see if there is a leak but I just replaced all the lines so I HOPE there is not.

    Still has a slight hesitation when I give it gas that I would like to get rid of. I have a new distributor that I need to put in it as soon as I get a replacement cap spring clip (it broke and they are sending me a replacement). Hope that will fix the hesitation as I think the old distributor is a little loose on the inside. if not, then I will attack the carb....
     
    Last edited: Jul 3, 2018
  4. Jul 3, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    when I connect to the T (line to the Vacuum Boost) I am only getting 5", when replacing the vacuum lines, I made sure that the PVC and all the connections were tight. Only thing left is the PVC to exhaust valve cover or the cover itself, CORRECT??? how else can I look for the leak???
     
    Last edited: Jul 3, 2018
  5. Jul 4, 2018
    scoutpilot

    scoutpilot Member Sponsor 2019 Sponsor

    Asheboro, NC
    Joined:
    Jun 7, 2014
    Messages:
    237
    What plugs are you running? An HEI kind of ties your hands when it comes to tune-ups.
     
  6. Jul 4, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    Champion J8C. Standard stock plugs.
     
  7. Jul 5, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    ok talk to me about checking vacuum... please

    I have constant 20" at the connection to the intake. If I move back to the T (side that goes to the vacuum assist) it drops to 5"

    I looked in the FSM and only see where it says to check vacuum at the intake and constant 20 is a good number.

    should I worry about the drop at the T or is that a bogus number.

    Just don't know if I am done looking into vacuum issues or not. the FSM is not much help.
     
  8. Jul 5, 2018
    Glenn

    Glenn Kinda grumpy old man Staff Member Sponsor

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    8,635
    I don't have the PCV hooked up on mine so I can only wonder about the difference. With the system hooked up does it still idle and run as good?
     
  9. Jul 5, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
    Messages:
    150
    I need to disconnect it and see how it responds. Honestly don't remember - I was just happy it started again :)


    seems to be running good right now. took it out for a drive around the neighborhood and it felt great. I could not get up to speed as I have no windshield at the moment. Having new glass out in my venting windshield. the wind noise kept me from hearing the engine but it felt peppy.
     
  10. Jul 5, 2018
    60CJ5

    60CJ5 Member

    Alabama
    Joined:
    Jan 29, 2003
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    150
    when I disconnect the 2nd line off the t there is no change in idle or response. I can definitely hear it sucking air in and when I cover it with my finger I can feel the suction but there is no change to how it is running. with it connected, I can not hear any air moving like I did with the line off. However, the vacuum gauge is only reading 5 at that spot.
    I get the vacuum at the manifold but it seems to me that the engine is not "sealed"
    (oil fill, breather line from oil fill to air filter)
    so while it is sucking air/gasses out of the engine, the whole engine is in effect a big leak.... Admitting that I really don't know what I am talking about even after trying to read up on it.

    to be honest, if I had not seen the vacuum reading at the T I would be assuming all is good based on how it seems to be running..... being that it is a mechanical advance and not vacuum, I am not sure what the issue is and if there really is one.

    guess my question is, do I just move on and deal with other issues or is this something I need to figure out if I am going to get the best performance I can out of this engine.
     
  11. Jan 8, 2019
    Tim Schilling

    Tim Schilling New Member

    Iowa
    Joined:
    Jan 8, 2019
    Messages:
    2
    Get rid of that carb. NOW!
     
  12. Jan 8, 2019
    jeepstar

    jeepstar Sponsor Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
    Messages:
    1,274
    Get a carter YF for the 134 motor. It will run with a solex, but it wont run well.

    Also, maybe I misread your previous post...you have an electronic distributor? With mechanical advance for the timing?
     

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