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Spark Plug Shot Out Of The Engine

Discussion in 'Early CJ5 and CJ6 Tech' started by jeepstar, Aug 19, 2018.

  1. Aug 19, 2018
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
    Joined:
    Jun 28, 2006
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    2,770
    How? Why? 134 fhead. Was driving it along and POW!
     
    jeepstar, Aug 19, 2018
    #1
  2. Aug 19, 2018
    73 cj5

    73 cj5 Not ready for the junkyard yet

    Clinton, Mississippi
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    Jan 10, 2014
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    2,143
    It could’ve come loose from heat and vibration, it wasn’t tightened down enough, or damaged threads.
     
    73 cj5, Aug 19, 2018
    #2
  3. Aug 19, 2018
    rusty

    rusty Well-Known Member

    norfolk,va
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    Dec 16, 2006
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    1,652
    First guess, ? Not tight. Second guess, threads worn in spark plug hole. Makes a heck of a noise.
     
    rusty, Aug 19, 2018
    #3
  4. Aug 19, 2018
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
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    Yeah. New plugs and wires are going on today!
     
    jeepstar, Aug 19, 2018
    #4
  5. Aug 19, 2018
    heavychevy

    heavychevy Sponsor

    Danielsville georgia
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    Sep 7, 2008
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    Wow, never heard of that before. Any of the other plugs loose?
     
    heavychevy, Aug 19, 2018
    #5
  6. Aug 19, 2018
    58 willys

    58 willys Sponsor

    Millsboro, Delaware
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    Jul 2, 2010
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    Ford 5.4 liters use to do it a lot
     
    58 willys, Aug 19, 2018
    #6
  7. Aug 19, 2018
    jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sheboygan
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    Didnt check any of them. This is a new to me jeep, so i havent changed them or checked them yet
     
    jeepstar, Aug 19, 2018
    #7
  8. Aug 19, 2018
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    Aug 3, 2003
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    Mine still does....:steamed: :steamed: :steamed:
     
    PeteL, Aug 19, 2018
    #8
  9. Aug 19, 2018
    1957Willys

    1957Willys Member

    Birmingham, Alabama
    Joined:
    Mar 23, 2012
    Messages:
    698
    It blew out from all the horse power that a F134 makes.
     
    1957Willys, Aug 19, 2018
    #9
    tripilio, dozerjim, 47v6 and 5 others like this.
  10. Aug 19, 2018
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
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    Had that sorta happen once on a Ford V6- blew the ceramic right out of the steel part- made a hell of a racket driving it home :D.
     
    Howard Eisenhauer, Aug 19, 2018
    #10
  11. Aug 19, 2018
    montanacj

    montanacj Member

    Joined:
    Jul 11, 2012
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    794
    If it was my Jeep I’d go over the vitals with a wrench. Make sure all the tie rods have cotter keys and brakes and steering look tight too.
    I bet that noise scared the crap out of you ? It would have scared me that’s for sure.
     
    montanacj, Aug 19, 2018
    #11
  12. Aug 19, 2018
    ojgrsoi

    ojgrsoi Retired 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Weatherford, TX
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    Dec 30, 2002
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    I had a corvan that blew a spark plug and then was firing outside under the engine cover. That was loud.
     
    ojgrsoi, Aug 19, 2018
    #12
  13. Aug 20, 2018
    Focker

    Focker That's a terrible idea...What time? Staff Member

    WA
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    X2
     
    Focker, Aug 20, 2018
    #13
  14. Aug 20, 2018
    Keys5a

    Keys5a Sponsor

    Florida Keys
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    Jan 23, 2014
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    I'm assuming to blew the porcelain out of the threaded base, leaving the hexagonal base with the head? I've seen this happen before, but never on an old Jeep.
    -Donny
     
    Keys5a, Aug 20, 2018
    #14
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