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Rear main seal removal and replacement

Discussion in 'Early CJ5 and CJ6 Tech' started by sparky, Sep 11, 2008.

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  1. Sep 11, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Sep 20, 2002
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    Ok, so I got the cap off.

    I got that portion of the seal out, no big surprise there, huh?

    Now I'm stuck with the upper 1/2 in the block. I put the corkscrew that came with the sneaky pete in and pulled like it said. Well, about an inch of it came out. It just shredded. It's now far enough up on the left side I can't see any of it. The right side isn't much better off. It just keeps shredding. Of course now I'm at a point where I can't even get any of it out.

    So you guys have never failed me before. How do I get the darned thing out?

    Dropping the tranny isn't really an option, gravel drive, no garage, etc. thus has been ruled out by SWMBO.

    However IF that's what it takes I have two options.

    One, I just got two bar brackets put on it I could pull it to the auto shop and hang my head in shame while I coax them to fix the problem and finish the job for me.

    Two, I buy cheap beer and convince my neighbors by giving it to them to let me use their concrete pad or shop with a concrete floor.

    What say ye?
     
    sparky, Sep 11, 2008
    #1
  2. Sep 11, 2008
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Re: Rear main seal removal

    I have driven them out before with a piece of 1/4" dowel. If you can't pull it, try pushing it.

    Did you loosen the other crank caps?
     
    timgr, Sep 11, 2008
    #2
  3. Sep 11, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: Rear main seal removal

    Yeah, ok, I've been trying that to some degree. Not having a 1/4" dowel has hampered that effort. :D I'll try to get one tomorrow and see what I can do.

    Didn't loosen the other crank caps, you think that would help apparently?
     
    sparky, Sep 11, 2008
    #3
  4. Sep 11, 2008
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Re: Rear main seal removal

    AMC manual tells you to. I have not, but it makes sense.
     
    timgr, Sep 11, 2008
    #4
  5. Sep 11, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: Rear main seal removal

    OK, the Buick V6 stuff I found on GN T-type.org made no mention of it. Not that much more work at this point and worth a shot!
     
    sparky, Sep 11, 2008
    #5
  6. Sep 11, 2008
    kaiser krawler

    kaiser krawler kaiser krawler

    naples florida
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    Apr 19, 2007
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    113
    Re: Rear main seal removal

    sparky, when i did my rear main i slowly rotated the motor by hand and the upper half, just rolled around and came out with a little push with a small screwdriver. it moved enough i was able to grab it with a pair of pliers a pull it out. if you pull your plugs you should be able to rotate your motor easily. hth
     
    kaiser krawler, Sep 11, 2008
    #6
  7. Sep 11, 2008
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Sep 22, 2002
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    Re: Rear main seal removal

    I've had to loosen/ remove all main caps on SBC's to get the seal (pieces) out...
     
    Patrick, Sep 11, 2008
    #7
  8. Sep 11, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: Rear main seal removal

    Sorry, I neglected to mention that, yes, I've had some help doing this. :D
     
    sparky, Sep 11, 2008
    #8
  9. Sep 11, 2008
    captain cj

    captain cj Member

    Crystal Beach...
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    Sep 27, 2005
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    331
    Re: Rear main seal removal

    Loosening the other main caps is a big help ( less pressure on the seal) once I did that I was able to pull it out with a pair of pliers, I didnt have to rotate it but I can see where that could help, By loosening the other main caps it make the new seal half go in real easy. HTH
     
    captain cj, Sep 11, 2008
    #9
  10. Sep 11, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: Rear main seal removal

    Makes perfect sense, I just had tunnel vision after reading other "how-tos" y'know. :)

    Thanks guys, I'll try that, at least I'm under the Jeep where the rain isn't as heavy.
     
    sparky, Sep 11, 2008
    #10
  11. Sep 12, 2008
    Alexis

    Alexis

    Re: Rear main seal removal

    So I guess I will be spending more time with you under the jeep helping the engine turn huh? :) lets try taking off the fan blade so it is a bit easier and I don't get so cut up. ;)
     
    Alexis, Sep 12, 2008
    #11
  12. Sep 12, 2008
    Don X

    Don X The Prodigal Moderator Staff Member 2023 Sponsor

    San Diego,...
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    Re: Rear main seal removal

    ^^^
    Alexis, you're my new hero....can you please stop by some time and convince my wife working on Jeeps is fun :)

    (and maybe even that it counts as a date??? :D)
     
    Don X, Sep 12, 2008
    #12
  13. Sep 12, 2008
    Alexis

    Alexis

    Re: Rear main seal removal

    I do learn a lot, but I think it is kind of stressful at times. date, well it is time spent together which is pretty good i suppose. :)
     
    Alexis, Sep 12, 2008
    #13
  14. Sep 12, 2008
    Jeepman252

    Jeepman252 Sponsor

    Menomonie, WI
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    Re: Rear main seal removal

    Lex,

    YOU ROCK! easy rider
     
    Jeepman252, Sep 12, 2008
    #14
  15. Sep 12, 2008
    neptco19

    neptco19 That guy....

    Athens, GA
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    Re: Rear main seal removal

    Go ahead and pull the caps all the way off so you can check the bearings while you are already in there.
     
    neptco19, Sep 12, 2008
    #15
  16. Sep 12, 2008
    Patrick

    Patrick Super Moderator Staff Member

    Los Alamos, NM
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    Re: Rear main seal removal

    Ah, the snowball effect...:)
     
    Patrick, Sep 12, 2008
    #16
  17. Sep 12, 2008
    Sledgehammer

    Sledgehammer Sure, I'll try it

    Ellery, Il
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    Jun 7, 2006
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    Re: Rear main seal removal

    When I did mine a month ago I took the rear cap off and loosened the next one.
     
    Sledgehammer, Sep 12, 2008
    #17
  18. Sep 12, 2008
    kcjeep

    kcjeep Member

    Stillwater, Oklahoma
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    Re: Rear main seal removal

    Spark...did you get the cheap beer?
     
    kcjeep, Sep 12, 2008
    #18
  19. Sep 12, 2008
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
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    Re: Rear main seal removal

    Not by the receipt I have, I hope to be celebrating tomorrow (if this rain lets up).
     
    sparky, Sep 12, 2008
    #19
  20. Sep 12, 2008
    kcjeep

    kcjeep Member

    Stillwater, Oklahoma
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    Re: Rear main seal removal

    Nice here tonight in Cowboyville...supposed to rain tomorrow....
     
    kcjeep, Sep 12, 2008
    #20
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