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Bubbles Around Spark Plug

Discussion in 'Early CJ-5 and CJ-6 Tech' started by Mr Plow, Mar 3, 2019.

  1. Mar 3, 2019
    Mr Plow

    Mr Plow Member

    Boston, Ma
    Joined:
    Jun 11, 2015
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    193
    Hey All. Well I did a search but the bubble issue was only a side part of a past post. So I have a F 134. I just fired her up and noticed bubbles and pooling fluid at #2 spark plug. Jeep runs every week but I have never touched the spark plugs. No leaks seem to be coming from above so I do think it is at the plug threads. Oil level was low not high and I opened the hood only after the engine was started for about a couple minutes when I noticed. So I guess the question is what are the steps I need to take to diagnose? Whats stinks is that the Pioneer Garage here - Jeep service station started in 1941 finally closed its doors so anything overly technical is going to be a challenge! Snow storm coming in tonight so I am not going to do anything now but I am guessing I am going to have to do some work soon. Thanks folks!
     
  2. Mar 3, 2019
    PeteL

    PeteL Member Sponsor 2019 Sponsor

    Hills of NH
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    Aug 3, 2003
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    I'd suggest seeing if the plug is screwed in snugly, with a spark plug wrench or socket. (13/16")

    Possibly replace it so as you'd have a good new gasket-washer under it. Heck, replace all four while you're there...
     
    Twin2 likes this.
  3. Mar 3, 2019
    Mr Plow

    Mr Plow Member

    Boston, Ma
    Joined:
    Jun 11, 2015
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    ah ok - I don't know when - if they were ever replaced!! When I first got the Jeep I brought to mechanic and told em to go through it all.
    Definitely - might as well do em all. Dumb question, is there a name brand or 'type' that I should get? I am in the hole with this thing so might as well do it right not dirt cheap at this point. Thank you! Cheers.
     
  4. Mar 3, 2019
    65seejayfive

    65seejayfive Blazin’ new trails

    York, PA
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    Apr 10, 2018
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    316
    I got a set of (4) AutoLite plugs from Quadratec awhile back that were pre-gapped to .030 for the F134 but I double-checked them anyway to make sure they were gapped correctly. They were right on!
     
  5. Mar 3, 2019
    jeep2003

    jeep2003 Active Member

    Vestal NY
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    May 30, 2006
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    1,448
    its common especially on the flatheads to notice them bubble. Its just the crush washer not sealing. Sand the sealing surface a little if its rusty usually fixes it.
     
  6. Mar 3, 2019
    Mr Plow

    Mr Plow Member

    Boston, Ma
    Joined:
    Jun 11, 2015
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    193
    Thanks guys!! I was trying not to panic too much but also wanted to address the problem. Appreciate it! Will give it a go after the snow storm. Cheers
     
  7. Mar 4, 2019
    Mr Plow

    Mr Plow Member

    Boston, Ma
    Joined:
    Jun 11, 2015
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    193
    While on the subject - any tips/tricks in changing the plugs? Aside from throughout inspection of seat - maybe some light sanding. How do I keep stuff from falling into hole. Do I need to worry about that? Any anti seize on threads, etc. I just ordered actually from Summit - I couldn't find Autolite on Quadratec.
    Thanks again!
     
  8. Mar 4, 2019
    70cj5134f

    70cj5134f Member

    East Tn
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    Aug 18, 2018
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    Replace plugs, I use whatever brand is on sale at my local FLAPS.
    clean around plugs as best you can. Retighten after hot and cold cycles a couple times.
    My 134 came with plug foulers installed, another place to leak. I've since removed the dang things. Check valve cover for leaks.
     
  9. Mar 4, 2019
    melvinm

    melvinm Member

    Arvada Co. 80003
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    Aug 11, 2012
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    Use an air gun and blow the dirt out from around the spark plugs. Wear safety glasses to keep the dirt out of Your eyes.
    Just Be careful with the air gun.
     
    70cj5134f likes this.
  10. Mar 4, 2019
    70cj5134f

    70cj5134f Member

    East Tn
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    Loosen them but don't take them out,don't want any trash in hole.
    Use air, scrape with screwdriver , gun cleaning bore brush in hole, or if u have a thread chaser cleans the threads and hole?
     
  11. Mar 4, 2019
    Mr Plow

    Mr Plow Member

    Boston, Ma
    Joined:
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    Awesome...! Yeah as I get older I am now much more conscious of eye wear ear etc. So good good tip there! Not taking them all the way out is also a good move. I am reading never seize on these when they go back in. Any of you guys think that's bad or good? Simple task here but there are always some small details that experience helps provide. Thanks a million. Cheers
     
  12. Mar 4, 2019
    70cj5134f

    70cj5134f Member

    East Tn
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    Never seize in small amount is great!
    Barley wipe on threads!
    Especially with alum heads!
    And on lug studs!
     
    Mr Plow likes this.
  13. Mar 5, 2019
    sterlclan

    sterlclan Member Sponsor

    exploring the...
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    The tireguy from work says no never seeze on lugs oil em. Swears they can loosen with never seeze something about torque.
     
  14. Mar 6, 2019
    NCRenII

    NCRenII yellow fever Sponsor

    Far Nor Cal
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    brush around plugs with a tooth, or bottle brush and use compressed air (compressor, or computer blaster), lable and remove wires from plugs, but not dist cap, loosen plugs a couple turns each (all of them) and crank the motor over. Compression will blowout any loose material.
    Gap and reinstall plugs(a little oil is fine). Hand thghten to make contact and use wrench to further tighten 1/8 to 1/4 turn more. Reinstall wires in correct order.
    If engine ir running rough may be time to think about rotor, points and cap.
     
  15. Mar 6, 2019
    scoutpilot

    scoutpilot Member Sponsor 2019 Sponsor

    Asheboro, NC
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    Autolite 295 or Champion J8C. Available just about everywhere.
     
    PeteL and Glenn like this.
  16. Mar 6, 2019
    PeteL

    PeteL Member Sponsor 2019 Sponsor

    Hills of NH
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    In fact any hardware store, in the lawnmower parts.
     
  17. Mar 6, 2019
    jeep peep69

    jeep peep69 Sponsor Sponsor

    redding ca.
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    Budd wheels you can use never seize but not on hub pilot use a couple drops of oil on the threads and the washer
     
  18. Mar 6, 2019
    sterlclan

    sterlclan Member Sponsor

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    Xactly what he said I just oil em all.
     
  19. Mar 6, 2019
    70cj5134f

    70cj5134f Member

    East Tn
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    My bad ,oil might be better?
    Anything to fight rust and lock up? In small doses?
     
  20. Mar 6, 2019
    PeteL

    PeteL Member Sponsor 2019 Sponsor

    Hills of NH
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    Yeah, I never-seized 'em one time only and won't ever do it again. :shock:
     

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