Never seen this before...internal engine carnage.

Discussion in 'The Bench' started by 1972Mach1, May 15, 2019.

  1. 1972Mach1

    1972Mach1 Just some guy.....

    Here's a new one to me, and I've legitimately had or been around easily 2000+ disassembled engines. Not going to say what kind of car/suv/truck this is, but it was less than a week old. Owner said they heard a loud "ca-thunk" and then the engine wouldn't turn over...... I figure the valve had to have broken while the piston was at BDC and was just starting it's up stroke, flipped a damnnear perfect 180, and Mister Piston proceeded to impale himself with the stem like a nail on the first try. Funny thing was it was holding coolant on top of the piston and not leaking a single drop down. Wiped up the coolant to discover this, and not a mark on anything, but the valve ain't coming out of it's new home. It's that stuck....kinda cool.
    piston1.png
     
    Grandpas67 likes this.
  2. Brad Conley

    Brad Conley Super Moderator Staff Member

    I hope they are at least replacing the entire engine, if not the whole car. Personally, I'd hold out for a new car...
     
    rmstg2 likes this.
  3. Fox's Den

    Fox's Den 22 years of racing the same 355 Buick motor

    Heck Yeah.
     
  4. Dr. Roger

    Dr. Roger Stock enthusiast

    Hyundai/Kia... my guess.
     
  5. Brian Albrecht

    Brian Albrecht Gold Level Monkey

  6. Brad Conley

    Brad Conley Super Moderator Staff Member

    Hahahaha!! Valve in piston! LOL!
     
    bhambulldog and 12.0 wagon like this.
  7. papa roger

    papa roger Well-Known Member

    I had the exact same thing happen to a 455 I had in a CJ5 years ago. I over revved the engine in 4 wheel low and dropped a valve through the piston just like that. Engine made a clunking sound every time the piston came up to the head. Craziest thing ever I thought. I just replaced the piston and valve and the engine ran perfect till I pulled it out and had it rebuilt by JW for my Regal.
     
    1972Mach1 likes this.
  8. lemmy-67

    lemmy-67 Gold Level Contributor

    lost a keeper...it seems...
     
  9. papa roger

    papa roger Well-Known Member

    Yep.... Lucky it was just one !
     
  10. 1972Mach1

    1972Mach1 Just some guy.....

    The valve in this engine had the stem snap in half. Everything looked just fine with the valve cover off.
     
  11. dynaflow

    dynaflow shiftless...

    ...metallurgical...
     
    1972Mach1 likes this.
  12. dyll

    dyll Well-Known Member

    wow, now thats some good old carnage!
     
    1972Mach1 likes this.
  13. OZGS455

    OZGS455 Oh what a wonderful day!

    piston broke!
     
  14. 1972Mach1

    1972Mach1 Just some guy.....

    No, other than the valve stem sized hole in it, the piston is in mint condition.
     
  15. dyll

    dyll Well-Known Member

    sure
     
  16. dyll

    dyll Well-Known Member

    i had other s
    i had more to add to it, i ment to say sure, that will buff out
     
    1972Mach1 likes this.
  17. 1972Mach1

    1972Mach1 Just some guy.....

    I'm not joking. This engine is in our shop right now. Literally the only thing wrong with the piston is it has a valve stuck through it.
     
  18. 1972Mach1

    1972Mach1 Just some guy.....

    Hahaha....no worries.
     
  19. OZGS455

    OZGS455 Oh what a wonderful day!

    pissed n' broke
     
    1972Mach1 likes this.
  20. 1972Mach1

    1972Mach1 Just some guy.....

    Pic of the head. You can see where the valve imprinted itself into the two exhaust valves and spark plug.
    piston2.png
     

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