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Probe in my exhaust runner

Discussion in 'Early CJ5 and CJ6 Tech' started by Fr8 dog, Sep 16, 2013.

  1. Fr8 dog

    Fr8 dog Member

    Hi everyone,

    Working on rebuilding my brothers odd fire V6 and I noticed this probe like thing in all of the exhaust runners just down stream from the exhaust valves. There is just a bolt head on the outside of the head with nothing attached, so it looks like this probe serves no function. I'm just wondering what it is and why it's there. Anyone have any ideas?

    [​IMG]

    Thanks,
    Brad
     
    Fr8 dog, Sep 16, 2013
    #1
  2. Jeepenstein

    Jeepenstein Me like Jeep.. 2024 Sponsor

    never seen that one before.. I hope someone can fill in the blanks!
     
    Jeepenstein, Sep 16, 2013
    #2
  3. PeteL

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

    Air injection for emissions, I'd guess. Never had a V6 though.
     
    PeteL, Sep 16, 2013
    #3
  4. mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Air Injection system. The bolt is there because the rest of the system has been removed and the bolt acts as a plug to prevent an exhaust leak.
     
    mortten, Sep 16, 2013
    #4
  5. billlucas

    billlucas New Member

    I just removed my air pump today. Based on another member's suggestion (I don't remember who, but thank you) I used set screws instead of bolts. Lots o' room to work now. The old metal air tubes were totally shot.
     
    billlucas, Sep 16, 2013
    #5
  6. nickmil

    nickmil In mothballs.

    This.


    Sent from my iPhone
     
    nickmil, Sep 16, 2013
    #6