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When A Half Gallon Of Coolant Comes Out The Right Side Exhaust....

Discussion in 'Early CJ5 and CJ6 Tech' started by Buildflycrash, Apr 7, 2021.

  1. Apr 7, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

    Gulf Breeze FL...
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    ...that’s a blown head gasket?
     
  2. Apr 7, 2021
    73 cj5

    73 cj5 Not ready for the junkyard yet 2020 Sponsor

    Mississippi
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    Or the head or block.

    Sure it wasn't just some water in the muffler?
     
  3. Apr 7, 2021
    Keys5a

    Keys5a Sponsor

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    How well does the engine run (if at all)? It could be an intake manifold leaking into the combustion chamber, then out the exhaust valve.
    -Donny
     
  4. Apr 7, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

    Gulf Breeze FL...
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  5. Apr 7, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    I’ve been struggling for a couple days to get it to run decent. I got it running well in the garage today but as soon as I drove it it kept getting worse. I last time I got it started was when it puked coolant. Got towed a mile home.
     
  6. Apr 7, 2021
    SIDSCJ

    SIDSCJ Jeep addict

    14th State
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    Green death.
    Pretty sure you'll have to at least pull the intake to know for sure.
    If not obvious you'll have to dig deeper.
    I had an f-head that ran fine till the t-stat opened, then it steamed out the tailpipe. Crack in block between #2&3 cylinders.
    How do the plugs look on that side?
     
  7. Apr 7, 2021
    Oldpappy

    Oldpappy Member 2021 Sponsor

    East Tennessee
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    Probably a blown head gasket, especially since it seems to have occurred suddenly.

    Always check the least possible problems first. Pull the heads and take a look. A new gasket set is not expensive and that may be all your problem is.
     
  8. Apr 7, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    I changed the plugs today. They were all dark but not fouled.
    Looks like rain. for the next few days here so I’ll be ripping into it.
     
  9. Apr 7, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    I have a head gasket set on the shelf but I think it’s for my ‘83 Buick 231. Y’all think they’re the same as the Dauntless’?
     
  10. Apr 7, 2021
    Fireball

    Fireball Well-Known Member 2021 Sponsor 2020 Sponsor

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    I would look up part numbers. The 225's have a pressurized oil passage to the rocker shafts the 231 don't.
     
  11. Apr 7, 2021
    Rich M.

    Rich M. Shoe pusher

    Maryland
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    Rock lists them as the same. I'm not warm and fuzzy about it.
    STD bore 231 is .050 over the dauntless. There's discussion about modern head gaskets being thicker, leading to pushrod length issues.
     
  12. Apr 8, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    Interesting. Online discussion? Here?
     
  13. Apr 8, 2021
    montanacj

    montanacj Member

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    You can always compare the old gasket to the new in terms of passages. The thickness might be more of a challenge but keep the old one obviously and compare it to whatever you are replacing with.
     
  14. Apr 8, 2021
    Rich M.

    Rich M. Shoe pusher

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    I'm not sure about the gasket thickness issue being discussed on this site but have read it elsewhere. The FelPro gaskets are notably thicker than originals ( not really a FelPro fan here of late with my rear main issues)
    Comp cams have a smaller base circle compounding the issue. You'll just have to check the preload, address the pushrod length if it's an issue.
     
  15. Apr 8, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    You mean like blast the end of my pushrods with the MIG? :twist: Build up a little extra steel thickness. :twist:
    [​IMG]
     
    Rich M. likes this.
  16. Apr 8, 2021
    Twin2

    Twin2 not him 2021 Sponsor 2020 Sponsor

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    humm I see a miss :whistle:
     
  17. Apr 8, 2021
    Jw60

    Jw60 Well-Known Member 2021 Sponsor 2020 Sponsor

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    Hopefully it's just a bad intake gasket where the exhaust is near the coolant passages.
     
  18. Apr 8, 2021
    Buildflycrash

    Buildflycrash Blind and Dirty 2020 Sponsor

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    Intake gasket that side was in tact.

    [​IMG]

    Moving photos and such to my build thread. I ordered gaskets and cam/lifters. Creep. Thanks everyone for the input.
     
    Fireball likes this.
  19. Apr 8, 2021
    Twin2

    Twin2 not him 2021 Sponsor 2020 Sponsor

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    you know . working on a jeep engine . is so much easier with the fenders off
    carry on
     
    Jrobz23 likes this.
  20. Apr 8, 2021
    Oldpappy

    Oldpappy Member 2021 Sponsor

    East Tennessee
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    Yep, I remove the fender on my Jeeps for a lot of things, such as when I need to to change fuel pumps, master cylinders, or steering boxes. Beats heck out of trying to be a contorsionist, I just don't bend as well as I used to.
     
    WYOMIKE and Fireball like this.

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