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Mystery Oil Leak

Discussion in 'Early CJ5 and CJ6 Tech' started by justnty, Sep 20, 2010.

  1. Sep 20, 2010
    justnty

    justnty Member

    Boise, ID
    Joined:
    Dec 9, 2009
    Messages:
    136
    I'm sure to most of you it won't be a mystery or how to fix it which is exactly the two questions I'm asking. On a 1970 V6 225 CJ5 leaking not dripping a LOT of heavy oil out of this union.

    1) What is the name of the part that bolts the bell housing and the transmission together roughly 4" across?

    2) What is the name, type, and installation steps in replacing this gasket in between the transmission and the mystery piece?

    [​IMG]
     
    justnty, Sep 20, 2010
    #1
  2. Sep 20, 2010
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
    Messages:
    4,422
    that would be an adapter. There is no gasket on the adapter. Just a front transmission seal and the rear engine main seal. Depending on what oil is leaking is what one needs replacing. Might as well plan to do both if you are there.
     
    termin8ed, Sep 20, 2010
    #2
  3. Sep 20, 2010
    justnty

    justnty Member

    Boise, ID
    Joined:
    Dec 9, 2009
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    136
    I figured it was something like that. It's definitely heavy weight oil, like transmission fluid, not engine oil. Can you tell me how complicated it is to replace these gaskets and what is the removal, replace, and reinstall procedure?
     
    justnty, Sep 20, 2010
    #3
  4. Sep 20, 2010
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    4,422
    if you don't have one allready, get a service manual. It will help alot. Looks like the body is off so it should be pretty easy. Just pull the trans/t-case assembly. There is a gasket and seal on the front of the trans. There's a part"can't think of the proper name" that sticks out of the front the throwout bearing rides on. 3-12Point bolts and its off.


    But of course you can't stop there. While your at it you might as well reseal the top cover gasket, and hey, while you have that off might as well check out the roller bearings in the trans...
    :D
     
    termin8ed, Sep 20, 2010
    #4
  5. Sep 20, 2010
    justnty

    justnty Member

    Boise, ID
    Joined:
    Dec 9, 2009
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    136
    I have a Haynes repair manual and it sucks what one would you recommend?
     
    justnty, Sep 20, 2010
    #5
  6. Sep 20, 2010
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
    Joined:
    Aug 7, 2003
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    4,538
    Posimoto, Sep 20, 2010
    #6
  7. Sep 21, 2010
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,472
    The 'thingy' Termin8ed is talking about is the front bearing retainer. There are seals on it as it attaches to the front of the tranny, and on the nose cone where the trans main drive gear (or input shaft) goes through to the clutch/pilot bearing.

    With where you are now, it's an easy fix to pull the tranny, tcase off the BH and get it sealed up.
     
    Warloch, Sep 21, 2010
    #7
  8. Sep 21, 2010
    Snafu

    Snafu New Member

    Landers,Ca
    Joined:
    Feb 16, 2008
    Messages:
    40
    When you remove the front oil seal holder aka the part that the throwout bearing rides. Make sure the front input shaft does not move forward. As there is a lot of needle bearings that the input shaft rides on. If that happens, get the needle bearings out of transmission housing and use grease or vaseline to hold needle bearings in place and reinstall the input shaft.

    Ed :tea:
     
    Snafu, Sep 21, 2010
    #8
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