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Should I fill oil in knuckles of dana 27

Discussion in 'Early CJ5 and CJ6 Tech' started by bigaoy, Jun 2, 2004.

  1. Jun 2, 2004
    bigaoy

    bigaoy New Member

    Thailand
    Joined:
    Jul 18, 2003
    Messages:
    4
    Should I fill oil in knuckle because I see plug at the side of knuckle
     
  2. Jun 2, 2004
    H8PAVMNT

    H8PAVMNT Rub his head for luck

    Joined:
    Sep 20, 2002
    Messages:
    229
    According to the Factory Service Manual (FSM):

    The Lubrication Chart indicates using "Universal Joint Lubricant"

    Search this site for "Knuckle Puding" I have also seen 140W gear oil recommended.

    HTH.
     
  3. Jun 2, 2004
    willysnut

    willysnut Banned

    Newnan, Ga.
    Joined:
    Oct 8, 2003
    Messages:
    654
    I put a 50/50 mix of 90w gear oil and light wheelbearing grease to help keep it in the housings. They are notorious for leaks. Been that way for two years no problems.
     
  4. Jun 2, 2004
    kamel

    kamel Senior Curmudgeon

    Erlanger, Kentucky
    Joined:
    Jun 10, 2003
    Messages:
    891
    The manual calls for 140 weight oil. That's what I put in.

    Here's a tip. Usually one puts oil in until it is just at the level of the fill hole and it just begins to seep out.

    Don't do that.

    Instead, fill it until it is about 3/8 to 1/2 inch below the level of the fill hole. That comes from an old Jeep mechanic who used to be manager of the repair shop.

    good luck

    Kamel
     
  5. Jun 2, 2004
    James P. Enderwies

    James P. Enderwies Sponsor

    Lake Havasu City, AZ
    Joined:
    Feb 2, 2003
    Messages:
    747
    HWGA! "Here we go again"! R)
     
  6. Jun 2, 2004
    JAB

    JAB Member

    Genesee, WI
    Joined:
    Sep 9, 2003
    Messages:
    98
    R)

    This topic never ends, here or on the G503 site :D

    :beer:
     
  7. Jun 2, 2004
    H8PAVMNT

    H8PAVMNT Rub his head for luck

    Joined:
    Sep 20, 2002
    Messages:
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    I don't think it really matters what you put in the knuckles. Just lube them. For hell sake I bet Billy's next paycheck that mine are dry as a bone!
     
  8. Jun 2, 2004
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
    Joined:
    Sep 10, 2003
    Messages:
    2,089
    I recommend polishing the knuckles w/emory paper while there a apart. change ALL fastners to grade 8 hardware. and NEVER SEIZE the dickens out of everything!.
     
  9. Jun 2, 2004
    w3srl

    w3srl Semi-retired in Florida Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    3,991
    [rant on]

    Repeat after me:

    If the knuckle seals leak, they are bad. Replace them.
    If the knuckle seals leak, they are bad. Replace them.
    If the knuckle seals leak, they are bad. Replace them.

    After replacing the seals per the FSM, fill the knuckles with 140wt lube and fugettaboutit.

    Also, kamel and 66cj5 are dead nuts on the money with their comments. When done right, the D25/27 front axle will dribble nary a drip on your pristine driveway.

    [/rant]
     
  10. Jun 3, 2004
    Hippo393

    Hippo393 Jeepless

    Charlotte, NC
    Joined:
    Sep 22, 2002
    Messages:
    1,130
    Geez Steve, take it easy on the new guy (FNG). R)

    bigaoy: please forgive, it's a topic that comes up almost weekly. Lots of answers to any question is available immediately by using the 'search' function above. ;)
    -Alan
     
  11. Jun 3, 2004
    w3srl

    w3srl Semi-retired in Florida Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
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    3,991
    Sorry. My bad. :oops:
     
  12. Jun 3, 2004
    66cj5

    66cj5 Jeep with no name

    NorthWest Indiana
    Joined:
    Sep 10, 2003
    Messages:
    2,089
    perhaps this topic should be on the FAQ.
     
  13. Jun 13, 2004
    budtoh3zo

    budtoh3zo Member

    little...
    Joined:
    Mar 23, 2003
    Messages:
    60
    If it leaks you know you got oil in it and nothing will happen if it quits leaking something is wrong or out of oil
     

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