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D18 leaky gasket replacement

Discussion in 'Early CJ5 and CJ6 Tech' started by Dabbie7, Aug 7, 2011.

  1. Aug 7, 2011
    Dabbie7

    Dabbie7 Member

    Northern Virginia
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    Replacing the rear and bottom gaskets on my leaky D18 transfer case. Going to use some right Stuff sealant as recommended here. Anyone know the torque values for these bolts? Can someone walk me thru the basics on cleaning the surfaces, applying the Right Stuff and torquing the bolts properly? Thanks!
     
    Last edited by a moderator: Aug 7, 2011
    Dabbie7, Aug 7, 2011
    #1
  2. Aug 7, 2011
    cj5lover

    cj5lover Member

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    Re: T18 leaky gasket replacement

    not sure what the torque is. i'll look in my book and get back to you. you want them pretty tight though. as far a sequence, how i do it is, finger tight them all, then start with wrench in center and make your way outwards. make two or three passes going a little tighter each time. as far as cleaning, use a degreaser and clean really well! i degrease then wire brush (attached to drill) all my surfaces then degrease again.
     
    cj5lover, Aug 7, 2011
    #2
  3. Aug 7, 2011
    cj5lover

    cj5lover Member

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    Re: T18 leaky gasket replacement

    my book says 30 ft.lbs.
     
    cj5lover, Aug 7, 2011
    #3
  4. Aug 7, 2011
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor

    Medford Mass USA
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    Re: T18 leaky gasket replacement

    Sorry for picking nits, but a T-18 is a transmission. The transfer case is a Dana 18, or D18.
     
    Last edited by a moderator: Aug 7, 2011
    timgr, Aug 7, 2011
    #4
  5. Aug 7, 2011
    bkd

    bkd Moderator Supreme Staff Member 2022 Sponsor

    K-Town Tenn.
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    Re: T18 leaky gasket replacement

    fixed
     
    bkd, Aug 7, 2011
    #5
  6. Aug 7, 2011
    Dabbie7

    Dabbie7 Member

    Northern Virginia
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    Re: T18 leaky gasket replacement

    Excellent, thanks guys. Going back out to the barn to torque them down now! Slowly fixing the leaks one at a time!! And thanks for the picking nits, I am a rookie!
     
    Dabbie7, Aug 7, 2011
    #6
  7. Aug 7, 2011
    willswilly

    willswilly New Member

    Northern New Jersey
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    Re: T18 leaky gasket replacement

    Just my 2 cents dabbie7, if you use any sealent on any of your gaskets the best thing I found is to wait 12-24 hours before filling with fluids. Some people use it and others don't! I did and my floors are dry as a bone. It has only been around the block a few times with no body!!! but it still is holding it's lube. Good luck with your leaks:beer:
     
    willswilly, Aug 7, 2011
    #7
  8. Aug 7, 2011
    unclebill

    unclebill Banned

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    yep
    wire wheel, brake cleaner and letting it cure overnight.
    the slug doesnt leak period.
    just get all mating surfaces bone dry and squeaky clean
     
    unclebill, Aug 7, 2011
    #8
  9. Aug 7, 2011
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    Also make sure you put a light dab of sealer on the threads of the pan bolts and any other bolts going into the case. Oil and gear lube loves to follow the bolt threads out causing a drip. There is one bolt hole in the pan rail that goes all the way through into the case.
     
    nickmil, Aug 7, 2011
    #9
  10. Aug 7, 2011
    Dabbie7

    Dabbie7 Member

    Northern Virginia
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    Thanks for all the help guys, I'll let you know how the floor looks after a day or two.
     
    Dabbie7, Aug 7, 2011
    #10
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