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My Dauntless Ate A Valve.

Discussion in 'Early CJ5 and CJ6 Tech' started by Buildflycrash, Jul 20, 2021.

  1. Jul 26, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

    Gulf Breeze FL...
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    Update. Moved over to the campground for a few days. I was waiting to pull the head because I knew we had to tow the Jeep down a dirt road to the campground. I put the oil pan back on with 4 bolts and the intake with 2 bolts.

    Here’s the head off.
    [​IMG]

    The package from Jackdog with the piston and valve arrived within 5min of me getting the old piston out.

    The FLAPS had a piston ring compressor for loan/rent. So this went in rather painlessly.

    Mint!!

    [​IMG]
     
    FinoCJ, locrwln, Fireball and 5 others like this.
  2. Jul 26, 2021
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    Hows the combustion chamber look?

    The cylinder wall?
     
  3. Jul 26, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

    Gulf Breeze FL...
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    Valve is in.
    [​IMG]

    Getting the gaskets cleaned up.

    [​IMG]
     
  4. Jul 26, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

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    it’s all bad. But it will run.
     
    FinoCJ, colojeepguy, Norcal69 and 3 others like this.
  5. Jul 26, 2021
    jzeber

    jzeber Well-Known Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Morgan Hill, Ca
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    What an epic repair. Can't wait to get the updates.
     
  6. Jul 26, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

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    Thanks again for the parts. So far so good.
     
    jackdog and Norcal69 like this.
  7. Jul 26, 2021
    Jw60

    Jw60 WRPD855 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Sedalia MO.
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  8. Jul 26, 2021
    Zoomer

    Zoomer eJeeper (walking) 2020 Sponsor

    Minnesota
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    Good progress! What did you do about the valve seat? Wasn't in pretty mangled?
     
    Fireball likes this.
  9. Jul 26, 2021
    Mjragan

    Mjragan Member

    socal-Simi Valley
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    Don’t know if anyone mentioned checking/cleaning the oil pump pick up screen before you bolt the oil pan back up. Tap the top of the valve with a hammer before you bolt the head back onto the block, it’s a quick way to check that the keepers are seated. Stand the head on its side while doing it, if the head is face down on a surface it could bend a valve.
    Great job, this trip is going make for some great stories in years to come.
     
    Buildflycrash likes this.
  10. Jul 26, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

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    I have a little grinding stone on a cordless drill. Tried to just hit the high spots. It’s going to have lots of blow-by.
    I removed the pickup and a little tray/pan above it. Cleaned both well.
     
    Lockman, Jw60 and Norcal69 like this.
  11. Jul 27, 2021
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor 2021 Sponsor

    East Tennessee
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    I have run with worse. It won't be the fastest rig out there, but no shame in coming in last with this kind of handicap.

    Later model Buick 231 "Even Fire" engines are plentiful and pretty cheap.
     
  12. Jul 27, 2021
    Steve's 70-5

    Steve's 70-5 Active Member 2020 Sponsor

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    I guess you checked the gap on the piston rings
     
  13. Jul 27, 2021
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member 2021 Sponsor 2020 Sponsor

    Bozeman, MT
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    Nice job Scott - Can't wait to hear that thing run!
     
  14. Jul 27, 2021
    jeep peep69

    jeep peep69 Member 2021 Sponsor

    redding ca.
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  15. Jul 27, 2021
    Renegade ll

    Renegade ll Member

    Thayne Wyoming
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    Well Scott it will keep the mosquitos away.
     
  16. Jul 27, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

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    I got it back together and it ran. I have a video uploading now but it is very slow. It wasn’t warmed up and it ran pretty rough. The damaged right side is definitely louder than the left. I’ll get the fenders back on tomorrow and drive around a little. I’ll re-torque the head bolts and change the brand new oil. In a day or two.
     
    AKjeff, supertrooper and colojeepguy like this.
  17. Jul 27, 2021
    colojeepguy

    colojeepguy Colorado Springs

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    Yeah I think Buildflycrash might have to be the tailgunner for next week's trail runs :lol:
     
    Twin2 likes this.
  18. Jul 28, 2021
    Buildflycrash

    Buildflycrash The pride of Cucamonga 2022 Sponsor 2020 Sponsor

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  19. Jul 28, 2021
    FinoCJ

    FinoCJ 1970 CJ5 Staff Member 2021 Sponsor 2020 Sponsor

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    That'll work!
     
  20. Jul 28, 2021
    SoCalNickG

    SoCalNickG Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    Very Good!:beer:
    Probably don't need to say it but, remember to change the filter with the oil.
     
    Buildflycrash likes this.
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