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C-12 what went wrong? Blown engine

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by CruzControhl, Apr 5, 2020.

Page 1 of 4
  1. Apr 5, 2020 #1
    CruzControhl

    CruzControhl Light Load Member

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    So I was on the road cruising along, went through a toll booth and noticed a loud tapping clacking noise coming from my engine bay that could be heard over the engine so I pulled over. Nothing loose nothing visible making the noise definitely some part of the engine...so I try to make it a little farther and 50+ miles down the road it explodes I knew it was something in the engine. I was thinking head gasket or something with the piston.
    We later found that a piston assembly disintegrated and the was a hole in one of the cylinder walls...it looked pretty bad...
    602,xxx miles on a c-12 I've been driving for about 6 months.
    I just want to know what went wrong why did this happen? I treated the engine good and always made sure it had oil... it was in a 2001 kenworth with a 10spd.
     
    CruzControhl, Apr 5, 2020
    CruzControhl, Apr 5, 2020
    #1
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  3. Apr 5, 2020 #2
    CruzControhl

    CruzControhl Light Load Member

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    This is exactly what it sounded like:
     
    CruzControhl, Apr 5, 2020
    CruzControhl, Apr 5, 2020
    #2
  4. Apr 5, 2020 #3
    CruzControhl

    CruzControhl Light Load Member

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    It followed engine rpm...engine faster sound faster...engine slower sound slower...
     
    CruzControhl, Apr 5, 2020
    CruzControhl, Apr 5, 2020
    #3
  5. Apr 5, 2020 #4
    buddyd157

    buddyd157 Road Train Member

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    anyone of a million things could have caused it.

    the shop will tear it down and find out why.

    personally, i think the ELD did it.
     
    buddyd157, Apr 5, 2020
    buddyd157, Apr 5, 2020
    #4
    rachi, Bakerman, tommymonza and 7 others Thank this.
  7. Apr 5, 2020 #5
    Super_Trucker

    Super_Trucker Bobtail Member

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    I agree sounds like a another victim of an ELD
     
    Super_Trucker, Apr 5, 2020
    Super_Trucker, Apr 5, 2020
    #5
    Roberts450, buddyd157 and Shawn2130 Thank this.
  8. Apr 5, 2020 #6
    AModelCat

    AModelCat Road Train Member

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    Could have been any number of things. Pics of the failed parts would help.
     
    AModelCat, Apr 5, 2020
    AModelCat, Apr 5, 2020
    #6
    CruzControhl, buddyd157 and Shawn2130 Thank this.
  9. Apr 5, 2020 #7
    cjb logistics

    cjb logistics Heavy Load Member

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    Covid 19 and economy!
     
    cjb logistics, Apr 5, 2020
    cjb logistics, Apr 5, 2020
    #7
    Bakerman and tommymonza Thank this.
  10. Apr 5, 2020 #8
    wtokhi

    wtokhi Light Load Member

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    spun rod bearing maybe? pushing piston slowly out of place more and more? until it just came out of the block, that'd be my guess but would need pictures
     
    wtokhi, Apr 5, 2020
    wtokhi, Apr 5, 2020
    #8
  11. Apr 5, 2020 #9
    little cat 500

    little cat 500 Road Train Member

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    probably cam follower kicked out the block there famous for it
     
    little cat 500, Apr 5, 2020
    little cat 500, Apr 5, 2020
    #9
  12. Apr 5, 2020 #10
    tnpete

    tnpete Medium Load Member

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    being a c12 when it should have been a C15? Heard a lot of C12's had the widow syndrome. Some even vented the blocks. But If it had been me, would have stopped. When you were at the toll booth. A knock 99.999% of the time, is only going to be bad. Not doing to go away in a few miles. But that's just me and how I do it.
     
    tnpete, Apr 5, 2020
    tnpete, Apr 5, 2020
    #10
    tommymonza Thanks this.
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