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T-90 Fluid Level

Discussion in 'Early CJ5 and CJ6 Tech' started by Steffy, May 17, 2005.

  1. May 17, 2005
    Steffy

    Steffy New Member

    Pittsburgh, PA
    Joined:
    Jan 30, 2003
    Messages:
    38
    I was just wondering how high the lube level should be in a t-90/d-18 setup? I put brand new seals in mine and when i filled it with fluid half the lube leaked out around the front yoke seal of the t-case. The seals are brand new so i was just wondering/hoping if maybe i overfilled it. Thanks in advance.
    Steffy
     
    Steffy, May 17, 2005
    #1
  2. May 17, 2005
    vanguard

    vanguard

    It should be filled to the bottom of the fill plug hole.
     
    vanguard, May 17, 2005
    #2
  3. May 17, 2005
    Steffy

    Steffy New Member

    Pittsburgh, PA
    Joined:
    Jan 30, 2003
    Messages:
    38
    Ok, but why is all my fluid running out on the floor after i fill it??? I can fill it to that level, but by the next morning i have a puddle on the floor. Is it possible that the seals just need to be worn in? ( I know im reaching for ideas )
     
    Steffy, May 17, 2005
    #3
  4. May 17, 2005
    scott milliner

    scott milliner Master Fabricator

    Seattle Wa.
    Joined:
    Dec 17, 2002
    Messages:
    2,362
    Did you put the seal in backwards?
     
    scott milliner, May 17, 2005
    #4
  5. May 18, 2005
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    5,349
    I hat to say this but you're grasping. Something is wrong with the seal. You should actually be able to fill these things up till the oil comes out of the breather on the transfercase with no leaks. Your front seal is either in backwards or it was sheared when it was put in.
     
    Mcruff, May 18, 2005
    #5
  6. May 18, 2005
    Steffy

    Steffy New Member

    Pittsburgh, PA
    Joined:
    Jan 30, 2003
    Messages:
    38
    Everything looks okay. I pulled the yoke out and the seal looks brand new just like when i installed it the first time. I guess ill just have to buy another new seal and try it again. Thanks for the help guys.
     
    Steffy, May 18, 2005
    #6
  7. May 18, 2005
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Make sure when you install the next new one you put some grease or petroleum Jelly on the garter spring on the back side of the seal. That will help keep it from popping out of the seal. That may be what happened here. The garter spring holds tension between the seal lip and the yoke seal surface so it doesn't leak. Also make sure you lube the seal lip before puttin in the yoke. Other wise the seal can be damaged when installing the yoke. Also, put some sealer on the splines inside the yoke where it slides on the output shaft. It's common for the gear oil to follow the splines out and cause a leak there as well. Let us know how it comes out. Nickmil.
     
    nickmil, May 18, 2005
    #7
  8. May 18, 2005
    Steffy

    Steffy New Member

    Pittsburgh, PA
    Joined:
    Jan 30, 2003
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    38
    Okay thanks again for the tips. I never even thought that that spring mightve slipped off or got brike at some point.
     
    Steffy, May 18, 2005
    #8
  9. May 18, 2005
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
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    8,126
    If you havn't heard already you should use a double lipped seal, they work a lot better than the stock item. The piece of choice seems to be a National Federal Mogul #473229.

    Also, is the part of the yoke that slips into the seal nice & smooth? If not shes gonna leak regardless-

    H.
     
    Howard Eisenhauer, May 18, 2005
    #9
  10. May 19, 2005
    67cj5

    67cj5 Member

    Oregon
    Joined:
    Oct 15, 2004
    Messages:
    347
    Yeah, it needs to be investigate. it s not going to get any better.
     
    67cj5, May 19, 2005
    #10
  11. Jul 10, 2005
    48willys

    48willys New Member

    Joined:
    Jun 27, 2005
    Messages:
    8
    A good thing to do, is check how the seal go's over the yoke.I have been handed the wrong seal many times and I find if pays to double check it.
     
    48willys, Jul 10, 2005
    #11
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