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

anyone want a jeep!!!!

Discussion in 'Early CJ5 and CJ6 Tech' started by dauntless_powered, Aug 23, 2007.

  1. Aug 24, 2007
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    Carb screws both turned out 1.5 turns you say... IIRC 2 turns is the generally accepted starting point. Part of the problem could be too lean, exacerbated by not getting the timing quite right.

    I'd set the screws to two turns out...

    I understand your frustration. Notice that my ECJ5 is gone... :oops:
    Hang in there Erik ! :)
     
  2. Aug 24, 2007
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    yep, I was thinking along the lines of Lynn (carb), or something to do with dist. electrical, not the timing itself.

    My DUI made mine idle much smoother and a little higher.
     
  3. Aug 24, 2007
    dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Groton, CT
    Joined:
    Nov 3, 2003
    Messages:
    1,000,081
    well, i will try turning the carb screws out another half turn, the bolt is back in and it made no differance.... it will fire up, timing is around 10 degs as i said, but she back fires a bit through the pipes, and when i try and blip the gas a touch she hesitates real bad and spits out the carb a tiny bit... man im close, but i just cant get this pos to run right now... :(
     
  4. Aug 24, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    That's a tad bit advanced, factory is 5* BTDC but that shouldn't cause these symptoms. I don't think it's timing.

    What's the vacuum reading and what's the needle doing?
     
  5. Aug 24, 2007
    bobcat

    bobcat Member

    lynchburg,va
    Joined:
    Nov 4, 2006
    Messages:
    197
    hey sparky,where is vacuum advance positioned when the no.1 spark plug wire is at 11:00.bob
     
  6. Aug 24, 2007
    dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Groton, CT
    Joined:
    Nov 3, 2003
    Messages:
    1,000,081
    i havnt put the vac gauge on yet, i need a fiittng to go into one of the vac ports on the intake, right now i have them blocked off with just a screw in type square head bolt
     
  7. Aug 24, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Don't have my Jeep right now, might be able to look in the gallery and see, I can't recall off the top of my head. :(
     
  8. Aug 24, 2007
    bobcat

    bobcat Member

    lynchburg,va
    Joined:
    Nov 4, 2006
    Messages:
    197
    i was just trying to get him closer when he puts the dist in.bob
     
  9. Aug 24, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    That can move though, the distributor body rotates relative to the rotor. The rotor direction is the important part.

    *edit* Unless you still think it's timing related? Which I don't.
     
    Last edited: Aug 24, 2007
  10. Aug 24, 2007
    bkap

    bkap Gone, but not long gone.

    Tucson, AZ
    Joined:
    Sep 9, 2006
    Messages:
    784
    Erik,

    This may sound a little weak, but did you make sure there were no blockages in the exhaust system when you installed it? Just a thought if it was running well before the installation ... Maybe a back pressure issue? Just guessing here.

    Also, on sticking a screw driver into the spark plug hole and having someone else hit the starter switch has never set well with me. I was always worried about jamming the screw driver in there. :shock: Using the compression method and checking the timing mark has always worked for me, especially with low compression engines where you can put it in gear and rock it back and forth to hit the timing mark.
     
  11. Aug 24, 2007
    BlueFlu

    BlueFlu past owner of some ecj5's

    Hermitage, TN
    Joined:
    Jan 21, 2004
    Messages:
    1,552
    Whats the voltage going to the dist?
    IIRR it should be 12+ volts for it to work right.
    If are running off the battery alone you may not be getting full charge at the dist.
     
  12. Aug 24, 2007
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    :iagree:
     
  13. Aug 24, 2007
    bobcat

    bobcat Member

    lynchburg,va
    Joined:
    Nov 4, 2006
    Messages:
    197
    i think that he has had it right at some point.the engine will idle with a vaccum leak.with the engine idling i would spray small mists of starting fluid around the base of carb and intake where it meets the heads.the vaccum leak could have been there all along.i thought lean mixtures backfire through the exhaust.bob
     
  14. Aug 24, 2007
    Homebrew2

    Homebrew2 Member

    Dunlap, CA
    Joined:
    Aug 17, 2007
    Messages:
    511
    Hello from the central Kaulifornia foothills. Sorry for all the crap you're going thru.
    Lots of great thoughts so far.
    I'd have to go on the assumption that there was a failure that just happened to coincide with putting the pipes on. (I've had way more of these occurances that I care to remember.)
    I just have to wonder if something in the dist broke, slipped, froze or fell apart ... advance spring, weight, roll pin on dist gear. Also (not knowing anything about your particular dist) I'd wonder if the dist pickup had an adjustable air gap that changed, module that was loose and losing ground.
    Hope that's of some help, even if it gets to some other train of thought that works.

    (FYI, on the other tangent, here's a link to using a piston stop for finding TDC w/ a piston stop ... easily cobbled IMO.)

    :beer:
     
  15. Aug 24, 2007
    jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Oklahoma City, USA
    Joined:
    May 18, 2006
    Messages:
    2,622
    Just the pass side, by chance?

    http://www.earlycj5.com/forums/showthread.php?t=45992



    Fixing that odd fire dist can be a very stressful (distressful?) time period in a man's life. No doubt you've got plenty of family responsibilities at home; no need to take your attention away from those. Just pull her in my driveway and leave 'er there and I'll take all those problems off your hands for you. R)
     
  16. Aug 24, 2007
    dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Groton, CT
    Joined:
    Nov 3, 2003
    Messages:
    1,000,081
    ok... turn the screws out to about 2 1/2 turns on the carb, set the timing at about8 degs at 750 rpm or so, and she seems much happier now!!! still need to get a fitting for the intake manifold vac port so i can get my gauge on there, and these plugs are now fouled up pretty good after trying to start her over and over again, also i need to figure out how to get the hose on the vac advance... its a pretty tight fit with the fan as it is now with it on there..... she still has a slight hesitation, but i think its all in the carb!!!
     
  17. Aug 24, 2007
    MOP

    MOP Active Member

    Pullman, WA
    Joined:
    Sep 25, 2003
    Messages:
    1,131
    I think you are probably on to something.
     
  18. Aug 24, 2007
    dauntless_powered

    dauntless_powered SUB COB 2024 Sponsor

    Groton, CT
    Joined:
    Nov 3, 2003
    Messages:
    1,000,081
    i rebuilt the carb this winter (the jeep hasnt been on the road for over a year), but it was my first rebuild with the 2g or any carb for that matter, so i could ahave screwed it up, but i think i need to get a vac gauge on this and get it to 20 and see where we are at!!
     
  19. Aug 24, 2007
    jeepfreak81

    jeepfreak81 When in Doubt, Pedal out!

    Owosso, MI
    Joined:
    Jan 25, 2006
    Messages:
    690
    if that doesn't work, should take 10 mins to pop your exhaust off and see if the way it runs changes....
     
  20. Aug 24, 2007
    1960willyscj5

    1960willyscj5 Well-Known Member

    Mesa, Arizona
    Joined:
    Nov 27, 2006
    Messages:
    2,793
    She ran fine with no mufflers?
    Pull them and see if she still runs fine.
    What are you running for an air cleaner?
    You may want to change that to match the exhaust.
    I know if you open up the exhaust to free flowing mufflers, you also need to open up the intake. You know, like maybe a K&N or something. And maybe the jets need to be changed, and the heat range on your plugs might be wrong. Does the DUI need the ballast resistor to run right?:rofl:

    Having said all that... I'm not that good a mechanic, so I am probably all wet here.R):coffee:

    Direction of rotor motion can be determined by the vacuum advance mechanism on the distributer.. With the cap off, looking down, hold your hand with one finger pointing along the line of the advance hookup to the distributer. you should now be pointing in the direction of rotation.:)
     
New Posts