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Manifold stud - access?

Discussion in 'Early CJ5 and CJ6 Tech' started by PeteL, Sep 13, 2015.

  1. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    My '57 CJ5 F-head has a broken exhaust manifold stud at the rear-most location, and direct acess to drill/tap etc. is obstructed by the bump-out of the leftside firewall.

    Anyone know any cool tricks, or will I need to pull the engine someday?
     
  2. mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    I pulled the engine. Didn't want to chance messing something up.
     
  3. Glenn

    Glenn Kinda grumpy old man Staff Member

    I don't know how to get at it without pulling the engine.....or the body. Unless of course the stud was sticking out some and you could get a pipe wrench on it....then PB blaster, heat, tug, tap or whatever and got lucky and it was to come out.
     
    Last edited: Sep 13, 2015
  4. ITLKSEZ

    ITLKSEZ Hope for the best, prepare for the worst

    Man, that's rough. I feel your pain. Is there any sticking out?
     
  5. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor



    No. Broke off at the block.

    I've been getting along by using muffler patch where the gasket leaks, lasts a season. Might do that for a few more years.
     
  6. aekdbbop

    aekdbbop Member

    I think I am missing two studs.. I'll get them replaced some day.. Not fun.
     
  7. Uncle Vin

    Uncle Vin Member 2022 Sponsor

    Pete: MIG weld a nut to what remains of the stud. The heat from the MIG loosens up the stud somewhat. I did it to mine and it worked like a charm. That being said, if the stud broke off at the block, then you will have to take off the manifold to weld the nut on the stud.
     
  8. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    That might possibly work, if I pull the manifold. Then I will probably have two more busted studs! :rofl:

    Of course if it doesn't work, then I will be pulling the engine for sure...

    I don't have MIG, just AC stick. Think that would do it?
     
  9. Glenn

    Glenn Kinda grumpy old man Staff Member

    In that awkward position a MIG gun would be more user friendly, but of course stick would work too.
     
  10. 47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    Stick might be even better. The welding on of a nut is just a brilliant idea
     
  11. Glenn

    Glenn Kinda grumpy old man Staff Member

    It's in a somewhat difficult place to strike an arc is the problem.
     
  12. jeep2003

    jeep2003 Well-Known Member

    there was a trick to this but i cant remember exactly what it was. Something like welding a washer on the broken bolt then a large nut onto the washer. that way you dont have to try and get a good weld inside of a tiny nut
     
  13. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    I like that.
     
  14. Glenn

    Glenn Kinda grumpy old man Staff Member

    Yes, I like that idea too. :coffee::)