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Transmission issues

Discussion in 'Early CJ5 and CJ6 Tech' started by Dabbie7, Aug 20, 2006.

Page 2 of 2
  1. Aug 20, 2006
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,517
    the bolt in the picture is below the oil level
    and that hole is most likely thru the case and into the oil
    if it were me, before I pull the unit out, I would first make sure that bolt and the others are tight.
    I might then drain the oil out, pull that bolt, and put some sealer on the threads after cleaning the hole real good.
    just a thought before seperating the two units
     
    jpflat2a, Aug 20, 2006
    #21
  2. Aug 20, 2006
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    What if the port between the two was at the same level (or slightly below) each of the fill holes?
     
    Patrick, Aug 20, 2006
    #22
  3. Aug 20, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,375
    Obviously the higher level is going to migrate into the lower level till they even out. That's why I got curious and measured the height of the fill plugs. The transmission is higher than the t-case. Until we discussed this a while ago I'd never really checked.
     
    Glenn, Aug 20, 2006
    #23
  4. Aug 20, 2006
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
    Joined:
    Sep 22, 2002
    Messages:
    8,360
    That's what I've always assumed, I guess. I've always filled the Transfer case first.
     
    Patrick, Aug 20, 2006
    #24
  5. Aug 21, 2006
    jayhawkclint

    jayhawkclint ΜΟΛΩΝ ΛΑΒΕ

    Oklahoma City, USA
    Joined:
    May 18, 2006
    Messages:
    2,622
    Really hard to find leaks over the internet, but you may want to check that front output shaft seal. Look at the second pic. It looks like it could be leaking out behind the yoke and getting slung all over. Notice how the yoke appears dry but the T-case is wet. That would account for oil being up higher than where you think it's leaking.

    Changing the output shaft seal is very easy: Pull the U-bolts off the drive shaft at the T-case end and check for play in the yoke. Slop in the yoke caused a leak on mine; had to tighten to 120lbs. Otherwise, spin the nut off and replace the seal. Driveshaft vibration will also chew up the seal.

    If it's just a small leak, you might be going through a lot of effort for not much gain by pulling that T-case down; JEEPS seem to mark their territory whenever they feel like it. Just keep the trans topped off and consider the undercoating corrosion prevention.
     
    jayhawkclint, Aug 21, 2006
    #25
  6. Aug 21, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,375
    JEEPs will generally fight to the bitter end for their right to leak at will. Mine have learned to pretend not to leak until I'm confident enough to actually say out loud it doesn't leak. :oops:
     
    Glenn, Aug 21, 2006
    #26
  7. Aug 21, 2006
    BlueComet

    BlueComet 1962 JEEP CJ-5

    Montrose, Colorado
    Joined:
    Mar 17, 2006
    Messages:
    204
    I'm dealing with a very similar issue with my '62. As these guys said earlier, pulling the D18 is quite a job - I'm working on that now. Not something I would do unless there was simply no other way to cure the problem(s).
     
    BlueComet, Aug 21, 2006
    #27
  8. Aug 21, 2006
    Dabbie7

    Dabbie7 Member

    Northern Virginia
    Joined:
    Jul 23, 2006
    Messages:
    85
    Pulled the transmission and transfer case off today. Main bearing shot, moving around in the casing. Couple of gears looking suspect, no wonder all the noise. Sent both off to the local transmmision shop for rebuilds.

    I quess this is part of breaking in the new, (new to me), rig.
     
    Dabbie7, Aug 21, 2006
    #28
  9. Aug 21, 2006
    sagegoat

    sagegoat The good life........

    Vernal,Utah
    Joined:
    Mar 4, 2006
    Messages:
    251
    Order a gasket kit and replace them all.:beer:
     
    sagegoat, Aug 21, 2006
    #29
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