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Light blue smoke, sputtering exhaust sound

Discussion in 'Early CJ5 and CJ6 Tech' started by Jake CJ5, Jun 25, 2011.

  1. Jake CJ5

    Jake CJ5 Member

    We did the tune-up about a week ago, now I notice I have light blue smoke out the exhaust after five mintues of warm up. Also has a sputtering or a missing sound out the exhaust. Under the hood it sounds rught?
    Any advice or suggestions would be helpful. 1960 CJ5 4cyl.
    Thanks
     
    Jake CJ5, Jun 25, 2011
    #1
  2. Patrick

    Patrick Super Moderator Staff Member

    How is your compression?
     
    Patrick, Jun 25, 2011
    #2
  3. Jake CJ5

    Jake CJ5 Member

    I don't know, I don't have a tester
     
    Jake CJ5, Jun 25, 2011
    #3
  4. Patrick

    Patrick Super Moderator Staff Member

    That's where I would start
     
    Patrick, Jun 25, 2011
    #4
  5. PeteL

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

    "Blue" smoke suggests oil. (Black is excess fuel, white is coolant water.)

    Try pulling the spark plugs and see how they look. It might lead you to one cylinder if there is a significant problem, or if all four are the same maybe it's just old age.

    Compression tester will do the same and more. It is a good investment for not much money.
     
    PeteL, Jun 25, 2011
    #5
  6. Corveeper

    Corveeper Member

    You can rent one from O'Riellys.
    It's actually free but they have loaner tools and a compression tester is usually one of them.
    What they do is charge your card when you take it and refund the money back to your card when you bring it back.
     
    Corveeper, Jun 25, 2011
    #6