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Fouling Plugs and smoking

Discussion in 'Early CJ5 and CJ6 Tech' started by NitroSteel, Dec 17, 2004.

  1. Dec 19, 2004
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
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    5,349
    Your engine should have an oil bath air cleaner that is hanging off to the pass side of the motor and is about 8-10" tall and about 6" around and looks like this image.
    [​IMG]
     
  2. Dec 19, 2004
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    The line off of the oil filler tube goes to the oil bath air cleaner McRuff mentioned, which you don't have. Not sure about the one hanging off the carb, but the one below the carb is vacuum as you mentioned and should be part of the PCV system. I don't have mine hooked up that way though, it just vents like the old time engines used to do.
     
  3. Dec 19, 2004
    CT

    CT Member

    Joined:
    Apr 28, 2004
    Messages:
    238
    My guess is your Carter carb is dumping too much gas into your motor. I would invest in a carb overhaul kit and get to know your Carter. It is not all that hard if you take your time and clean up everything and replace those little parts. Get a repair manual and take it a step at a time.

    If you don't want to take the time, one of Solex carbs work great. Check on ebay or one of the online companies. You probally will not have to spend much over $100.00 for a new replacement Carb.

    And the Marvel Mystry oil is great for unsticking anything. I have had it unstick rings that were not flexing on an old F134 and it stopped smoking blue smoke.
     
  4. Dec 19, 2004
    NitroSteel

    NitroSteel New Member

    Valdosta, GA
    Joined:
    Nov 29, 2004
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    I'll get a carbeurator rebuild kit and will replace all of the plug and distributor wires. My last questions are: What should I do about the vacuum hose that is plugged coming out of the crankcase? Should I look into setting up the air filter/vacuum hoses as shown in the FSM or just use what I have? Do ya'll want pictures?
     
  5. Dec 19, 2004
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Yeah, a picture would be good. I'd guess the vacuum hoses would be simple on the F4 (not being an F4 expert). Lines coming from the crankcase aren't vacuum per se. The only sources of vacuum are the intake manifold (manifold vacuum), the carburetor (distributor vacuum), and the vacuum motor on the fuel pump (vacuum wipers). The crankcase is typically vented through the PCV valve to manifold vacuum. If your distributor has a vacuum diaphragm, the tap on the can goes to the base of the carburetor. That's pretty much it, till you get into things like power brakes and smog devices.
     
  6. Dec 19, 2004
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Yeah, pics would help clear up things. He said crankcase but I assumed he meant the vacuum port below the carb.
     
  7. Dec 19, 2004
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    If the PCV line is plugged, it create a huge amount of blowby, and may even contribute to the smoking problem if it blows crakcase pressure past the valve guides.....
     
  8. Dec 19, 2004
    NitroSteel

    NitroSteel New Member

    Valdosta, GA
    Joined:
    Nov 29, 2004
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    PCV valve is not plugged (I checked it).

    I just poured some MMO into the plug holes, gas, carb, and oil. I then put 4 new Champion plugs (like the ones it originally had) in it and ran it down the highway. It again ran like a new machine. I'll let ya'll know tomorrow how it works out. I'm hoping it is cured. I noticed that the center eletrode on the Champion plugs look much different than the center electrode on the Delco plugs did (Champion is fatter). I'm hoping my Jeep may just "like" the Champion plugs better. I am still going to either rebuild or buy a new carb, but I like the sound of that much better than having to put in new rings...

    BTW, whoever it was that said that it would fog for moquitoes with the MMO was definetly right.

    Hopefully tomorrow I'll get to run the fire out of it and I'll have an idea if I'm cured or not. I did take pic's of the main "vacuum" hose I don't know what to do with, along with the current breather setup. How do I post pic's???

    Thank ya'll
     
  9. Dec 19, 2004
    jd7

    jd7 Sponsor

    Nacogdoches,Texas
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    Mar 30, 2004
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    My Jeeps seem to like Champions. I'll use ac in my V6 but th 134s just seem to like Champions for some reason. Maybe yours will too.
     
  10. Dec 19, 2004
    willysnut

    willysnut Banned

    Newnan, Ga.
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    Oct 8, 2003
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    And if your "free" jeeps' engine compartment looks that good- I've got to buy you a cold bev when we meet in Ga. Moving there next month(Newnan)
     
  11. Dec 20, 2004
    blevisay

    blevisay Oh Noooooooooooooooo! Staff Member

    Portland Tn.
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    R45?

    I dont think that is the right cross from J8C Champion..........Let me look.
     
  12. Dec 20, 2004
    NitroSteel

    NitroSteel New Member

    Valdosta, GA
    Joined:
    Nov 29, 2004
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    The Champions foulded today too, but not nearly as quickly. Who should I order a new carb from? I was looking at Tellico 4x4.com and they are about $90 for a new Solex. Is there a better deal out there?

    Will the linkage hook up exactly? Will I need any additional parts to get this installed?
     
  13. Dec 20, 2004
    NitroSteel

    NitroSteel New Member

    Valdosta, GA
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    Nov 29, 2004
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  14. Dec 20, 2004
    Old Bill

    Old Bill Aggressively passive....

    Really Southern...
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    You'll have to check for slop in the throttle shaft. That'll degrade performance, although I can't say how much. That might be a deciding factor whether to rebuild or buy new. FWIW, I just put a Solex on my rebuilt Fhead, and can't say I'm dissappointed. Starts up when cold, though I gotta play with the "choke" a bit, but what carb doesn't need that? The fit was good, just be sure to ask for one for an F head. You may need to reroute the choke and throttle cable for them to work right, and you'll prolly have to bend the pedal linkage that goes over the valve cover. Not terribly difficult.
     
  15. Dec 20, 2004
    vanguard

    vanguard

    I'd do a little more research, but if you do think its the carb. The Solex you are looking at is a good solution. I really like the one I just sold. It installed very easily and greatly improved the fuel economy. The only adjustment I had to make was a very slight bend in the fuel line.
     
  16. Dec 21, 2004
    willysnut

    willysnut Banned

    Newnan, Ga.
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    I tried the rebuild didn't like the response, and so I got a Solex and have been happy ever since.
     
  17. Jan 16, 2005
    campwillys

    campwillys Member

    Georgetown , New...
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    try draining a quart of oil out and running it and see if it clears up.
     
  18. Jan 17, 2005
    NitroSteel

    NitroSteel New Member

    Valdosta, GA
    Joined:
    Nov 29, 2004
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    I installed the Solex and finally got a chance to run it today. It is perfect, I couldn't have imagined it running this good.

    It does still smoke a little bit when I really get on it hard, but other than that, there is no noticeable smoking. I figure that smoking may clear up after a little running, and I guess time will tell. I managed to find some black bullet hole wheels that already had 33x12.50 mud terrain tires on them for really cheap, so it's even starting to look better. I'm very hesitant to do very much riding since it doesn't have any brakes.

    I started trying to pull the master cylinder apart today, and it was a difficult job. I could not get the first piston out by using air pressure as the manual suggested, so I drilled into the piston, screwed in an easy-out and pulled the piston that way - - it was still very difficult to get out, even after it sat soaking in PB Blaster for a while. Of course I could not get the second piston out either (and still haven't). I filled up the entire master cylinder with PB blaster and am letting it soak for another day or so. Hopefully I can get the second piston out and then I'll hone it and rebuild - I've already got the kit.

    Any suggestions on getting this piston out??? Air pressure would not budge it , but I'm hoping it will in a couple days.

    If you're like me you probably expect me to be buying a new master cylinder this week. Where do ya'll shop, where should I get it???

    Thanks again,

    Nitrosteel
     
  19. Jan 17, 2005
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
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    Try KRAGE at www.jeepdoc.com

    They are nice folks, and ship pretty quickly if they have it in stock. I always check to see if it is in stock before ordering though.... Prices are pretty good on most stuff too!
     
  20. Jan 18, 2005
    JohnyJeep

    JohnyJeep BLOWING A XING NEAR U@2AM

    Beautiful Cody WY
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    What Steve said. Make sure you order by phone though. Seems a few folks tried online ordering without much luck.
    If your pistons are that frozen, then chances are good that the bores are pitted so bad they'll never seal.
     
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