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

Tc Crack

Discussion in 'Early CJ5 and CJ6 Tech' started by Fresbone, Feb 25, 2024.

  1. Feb 25, 2024
    Fresbone

    Fresbone Member 2023 Sponsor 2022 Sponsor

    Fresno, California
    Joined:
    Jul 29, 2022
    Messages:
    452
    I found a crack at one of the holes for the Tc drain pain. It looks like it would just affect the bite of the bolt going into that hole, not the case itself. My inclination is to remove the cracked piece so it doesn’t come loose inside the TC and pretend I didn’t know it was there.
    Thoughts?
    IMG_1574.jpeg
     
    dozerjim, Ol Fogie and Glenn like this.
  2. Feb 25, 2024
    dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Grand Mesa, CO
    Joined:
    Aug 13, 2006
    Messages:
    1,346
    Your plan sounds good to me.
    Just throwing out ideas now...
    If the damage portion separates easily, consider a JB weld fix to put it back.
    You might also try installing a heli-coil after removal of the damaged portion.
    It just might 'take' and offer some support. I'd only tighten it to about 1/2 torque, though.
     
  3. Feb 25, 2024
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
    Joined:
    Apr 4, 2010
    Messages:
    7,148
    Thats probably the start of something worse. Keep an eye on it!
     
    dozerjim, Rick Whitson, Glenn and 2 others like this.
  4. Feb 25, 2024
    ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Spokane Valley, WA
    Joined:
    Aug 13, 2015
    Messages:
    6,669
    I’m trying to imagine why that would’ve happened. Was that bolt head smeared like it hit a rock?
     
    dozerjim, Glenn and Fireball like this.
  5. Feb 25, 2024
    Rich M.

    Rich M. Shoe salesman 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Maryland
    Joined:
    Mar 23, 2008
    Messages:
    2,180
    You " might" get that to seal up using a cast aftermarket pan. Doubtful with the stocker.
    Cases are easy enough to economically source, swap the guts over if it's otherwise in good shape. A Novak rebuild kit isn't expensive.
    Why take a chance..
     
  6. Feb 25, 2024
    Fresbone

    Fresbone Member 2023 Sponsor 2022 Sponsor

    Fresno, California
    Joined:
    Jul 29, 2022
    Messages:
    452
    Some times, life makes decisions easy. This took no force. IMG_1578.jpeg
    As to why it happened, the end of the socket where that bolt goes is scalloped out to hold the high-low gear. Plus it is right next to the rear output, so maybe some extra torque on the case plus an overtorqued bolt? I’m glad I found it before it came off and broke teeth.
    I’m going to call Novak and see what they say, but I suspect I will get enough grip with the 2/3 remaining threads to torque it down half load. I will definitely check on the rigid pan. I think Novak makes those.
     
    Last edited: Feb 26, 2024
    Glenn and dnb71R2 like this.
  7. Feb 25, 2024
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb

    Southern...
    Joined:
    Nov 24, 2019
    Messages:
    1,793
    Cannot tell if there is enough room in the picture. But could you drill another hole just on either side or both sides of the failed bolt hole and retap it and drill new matching holes in the cover?
    Also might thread a stud in the remaining hole and weld the broken spot stud and all ,so a nut could be used to hold the pan.
     
    Last edited: Feb 25, 2024
    dozerjim, Rick Whitson, Glenn and 4 others like this.
  8. Feb 25, 2024
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
    Joined:
    Apr 4, 2010
    Messages:
    7,148
    Doesn't someone make a reinforced plate for the pan?
     
    Glenn and Ol Fogie like this.
  9. Feb 25, 2024
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,772
    Jeff p. On the 2a page was making some with the gears, I think big willy or some other guy has them but why?.. when you can get a full cast aluminum high capacity (runs cooler) pan. We aren't looking for strength on this one.
    Personally I think you need a stud that won't ever come out. Two part epoxy or solder and a well prepped hole.
     
  10. Feb 25, 2024
    dnb71R2

    dnb71R2 SuperDave 2023 Sponsor

    Grand Mesa, CO
    Joined:
    Aug 13, 2006
    Messages:
    1,346
    That Novak high-capacity pan does not work with the factory skid plate...at least it didn't with mine. I had to send it back.
     
    dozerjim, Ol Fogie, Glenn and 5 others like this.
  11. Feb 26, 2024
    Norcal69

    Norcal69 Out of the box thinker 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Northern California
    Joined:
    Sep 6, 2014
    Messages:
    3,559
    X2
     
    dozerjim, Dwins1, Ol Fogie and 3 others like this.
  12. Feb 26, 2024
    Fresbone

    Fresbone Member 2023 Sponsor 2022 Sponsor

    Fresno, California
    Joined:
    Jul 29, 2022
    Messages:
    452
    I think drilling holes may weaken the case. That part of the case is built up on the inside to accept the bolt. I like the idea of putting in a stud.
    JB weld? What about red locktite?
     
    dozerjim, Ol Fogie and Glenn like this.
  13. Feb 26, 2024
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
    Joined:
    Apr 8, 2008
    Messages:
    4,772
    Not the same. They harden and bond differently. You can take two parts and bond them in epoxy then machine it as one.

    Did you know the Wright flyer flew several years with a cracked engine block?
     
    dozerjim, Dwins1, Glenn and 2 others like this.
  14. Feb 26, 2024
    vtxtasy

    vtxtasy oldbee 2024 Sponsor 2023 Sponsor

    Tucson, AZ
    Joined:
    Feb 5, 2006
    Messages:
    1,452
    Welding cast iron has come a long way. It may be possible to have a stud welded in to what threads are left.
     
  15. Feb 26, 2024
    duffer

    duffer Rodent Power

    Bozeman, MT
    Joined:
    Sep 17, 2009
    Messages:
    4,486
    Another that would not be drilling any more holes. Those cases usually break between the intermediate shaft bore and the PTO port when stressed enough. The rear bearing cap adds some support where this broke. I'd probably clean that real well and JB Weld a stud there. Nothing much lost if it doesn't work.
     
    dozerjim, Glenn, Ol Fogie and 2 others like this.
  16. Feb 26, 2024
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,469
    Yup - then look for another case - "just in case". Too bad your that far away, I've got several in the parts bin out in the shop.
     
    dozerjim, Glenn, Fresbone and 3 others like this.
  17. Mar 9, 2024
    Fresbone

    Fresbone Member 2023 Sponsor 2022 Sponsor

    Fresno, California
    Joined:
    Jul 29, 2022
    Messages:
    452
    I got the Novak billet oil pan and I’m not so sure I need to do anything to reinforce the threaded hole. The bolt feels pretty darn secure. Am I completely off base on this?
    IMG_1672.jpeg IMG_1666.jpeg
     
    Glenn likes this.
  18. Mar 9, 2024
    Andrew Theros

    Andrew Theros Member 2023 Sponsor 2022 Sponsor

    Los Osos, CA
    Joined:
    Feb 24, 2021
    Messages:
    398
    I don’t know if you’re off base or not. Once you’re done it’s not going to be a bolt you are constantly or even often removing and replacing but I think a stud would keep it out of the back of your mind.
     
  19. Mar 9, 2024
    Lockman

    Lockman OK.....Now I Get It . 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Silver Hill,...
    Joined:
    Dec 4, 2018
    Messages:
    2,702
    Nate , AKA garage gnome , offered us all his Cast Iron welding skills . It's in the Members Market forum here. However, He is located prittinear across the Country from Y'all, but Hey.......Ya never know !
     
    dozerjim, Dwins1, Ol Fogie and 3 others like this.
  20. Mar 9, 2024
    Andrew Theros

    Andrew Theros Member 2023 Sponsor 2022 Sponsor

    Los Osos, CA
    Joined:
    Feb 24, 2021
    Messages:
    398
    Looking at it again, it is definitely an oil leak waiting to happen.
    Stud with jb weld would probably remove that likelihood, at least it seems that way to me.
     
    dozerjim, Dwins1, Ol Fogie and 3 others like this.
New Posts