1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Leave F134 Engine In Place While Removing Tranny/transfer Case

Discussion in 'Early CJ5 and CJ6 Tech' started by Tom Stephens, Jun 23, 2019.

  1. Jun 23, 2019
    Tom Stephens

    Tom Stephens New Member

    Arnold, CA
    Joined:
    Oct 29, 2018
    Messages:
    40
    I have leaks under my motor, tranny and/or transfer case. After a run, the leaks add up to perhaps a teaspoon of oil. Next thing I read is I should ensure all the pan bolts, etc. are tight. If I can't stop the engine leaks, I want to pull the motor to rebuild while I'm at it.

    My question is this... after I put the motor back in the Jeep, if I find that the tranny and/or transfer case still leak, is it possible to pull those and repair the leaks while still leaving the motor in the Jeep?

    Tom
     
  2. Jun 23, 2019
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
    Joined:
    Aug 10, 2003
    Messages:
    23,596
    Sure. Not difficult.
     
  3. Jun 23, 2019
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,102
    Assuming you don't have access to a post lift yup, not fum but can be done.

    Putting it back will be less fun :(.

    Remove the bell housing/engine bolts, or alternatively the four bell housing/tranny bolts & it will balance nicely on the cross member. You will need to support the back of the engine & I'd suggest getting the vehicle up another 4-6 inches & using a transmission adapter on a floor jack.
     
  4. Jun 23, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    Why not save yourself some trouble and pull the whole thing at once. Get the engine rebuilt and do whatever needs to be done to the transmission and t-case while you're at it.
     
    70cj5134f, 47v6 and baldjosh like this.
  5. Jun 23, 2019
    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:
    9,754
    A "teaspoon?" Why worry?
     
    tcfeet, 70cj5134f and 47v6 like this.
  6. Jun 23, 2019
    baldjosh

    baldjosh Member

    pacific north west
    Joined:
    Oct 24, 2017
    Messages:
    451
    I started to write the same reply as Glenn...but he beat me to it:madwife:
     
    Glenn likes this.
  7. Jun 23, 2019
    Focker

    Focker That's a terrible idea...What time? Staff Member

    WA
    Joined:
    Aug 18, 2014
    Messages:
    7,540
    X2
     
    47v6 likes this.
  8. Jun 23, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    :rofl:
     
  9. Jun 23, 2019
    spiderman

    spiderman Member

    Putnam , Ct.
    Joined:
    Dec 15, 2014
    Messages:
    81
    I didn't realize that it wasn't supposed to leak ! :D
     
    Glenn likes this.
  10. Jun 23, 2019
    Tom Stephens

    Tom Stephens New Member

    Arnold, CA
    Joined:
    Oct 29, 2018
    Messages:
    40
    Thanks Tim and Howard!

    Glenn,

    "Why not save yourself some trouble and pull the whole thing at once. Get the engine rebuilt and do whatever needs to be done to the transmission and t-case while you're at it." Good point! I am thinking perhaps the oil dripping from the tranny/transfer case might be coming from the engine. How would I know? So my thought was, do the engine first, then I might find out it was only the engine, so why bother with tackling the tranny, etc.

    Tom
     
    Glenn likes this.
  11. Jun 23, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    If you are thinking the engine might need rebuilding then I'm assuming the clutch, transmission, and t-case haven't had work in a long time also. This is based on what I would do in this instance.
     
    73 cj5 likes this.
  12. Jun 23, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    As far as leaks, as mentioned a teaspoon isn't much. After how many miles are you talking about something leaking? Engine oil is the easiest to monitor, but chances are where it's dripping from means gear oil also.
     
  13. Jun 24, 2019
    Tom Stephens

    Tom Stephens New Member

    Arnold, CA
    Joined:
    Oct 29, 2018
    Messages:
    40
    Glenn,

    Everything behind the motor is working very well, I hate to mess with it.

    Is there a way to tell the difference between motor and tranny oil?

    Tom
     
  14. Jun 24, 2019
    Rick Whitson

    Rick Whitson Detroit Area 2024 Sponsor 2022 Sponsor

    I live South of...
    Joined:
    Dec 2, 2014
    Messages:
    1,725
    The Smell is the easiest way to tell, trans dope smells different than motor oil. You can feel the difference too, trans oil is thicker, and sticks to your fingers more than motor oil. Good Luck
     
  15. Jun 24, 2019
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    If the leaks aren't bad enough to cause problems then in reality, as others have mentioned doing nothing could be the best idea. Try tightening (slightly) any pan and cover bolts. Engine work would be the last thing you want to do.
     
  16. Jun 24, 2019
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
    Joined:
    Jan 22, 2019
    Messages:
    670
    Have you considered the possibility of it being a rear main seal on the engine? I'm looking at the same issue with mine. From what I can tell that involves going in through the oil pan. So you could try that without removing the engine or transmission.
    My clutch also needs attention however so in my case I think I'll be putting the transmission.
     
  17. Jun 24, 2019
    70cj5134f

    70cj5134f Member

    East Tn
    Joined:
    Aug 18, 2018
    Messages:
    749
    Just drive it. Mine drips. I don't like it, but it does.
    If I were to pull anything for repair, I'd try to be Sure what was leaking?
    Change your oil, clean bottom of engine as well as u can. Then drive and watch for leaks.
    Clean oil is easier to tell the difference from trans oil. I use 15w 40, and a bottle of STP. Slowed my drip by half. And if my trans is the least bit over full it leaks.
     
    Lockman likes this.
  18. Jun 24, 2019
    Greevesman

    Greevesman Member

    Napa, Ca
    Joined:
    Oct 12, 2014
    Messages:
    417
    It tastes different too.
     
    Rick Whitson likes this.
  19. Jun 25, 2019
    Tom Stephens

    Tom Stephens New Member

    Arnold, CA
    Joined:
    Oct 29, 2018
    Messages:
    40
    I guess I'm in for smelling, tasting, and tightening. I'll do all that this weekend and see if I can learn anything :)
     
  20. Jun 25, 2019
    Jrobz23

    Jrobz23 Member

    Northern, WI
    Joined:
    Oct 3, 2016
    Messages:
    942
    I get worried when my heeps stop leakin’
     
    70cj5134f likes this.
New Posts