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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. Jun 25, 2011
    Jake CJ5

    Jake CJ5 Member

    Arizona
    Joined:
    Apr 25, 2011
    Messages:
    53
    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. Jun 25, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    How is your compression?
     
    Patrick, Jun 25, 2011
    #2
  3. Jun 25, 2011
    Jake CJ5

    Jake CJ5 Member

    Arizona
    Joined:
    Apr 25, 2011
    Messages:
    53
    I don't know, I don't have a tester
     
    Jake CJ5, Jun 25, 2011
    #3
  4. Jun 25, 2011
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    That's where I would start
     
    Patrick, Jun 25, 2011
    #4
  5. Jun 25, 2011
    PeteL

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

    Hills of NH
    Joined:
    Aug 3, 2003
    Messages:
    9,849
    "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. Jun 25, 2011
    Corveeper

    Corveeper Member

    Chanute, Kansas
    Joined:
    Jul 29, 2005
    Messages:
    817
    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
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