Blown turbo 2015 Kenworth T680

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Brytania, Oct 18, 2021.

  1. Brytania

    Brytania Bobtail Member

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    Oct 18, 2021
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    2015 Kenworth T680 Turbo has been replaced twice and both times it’s blown out in a matter of driving it a couple of miles. Any idea what the problem can be. I am asking for my husband thanks in advance.
     
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  3. Don379

    Don379 Medium Load Member

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    The only thing that pops into mind is that using aftermarket cheaper turbos. Happens frequently on here. Can you find out what he has been using since the first one cut loose? Did he buy stock replacement or cheaper unit somewhere?
     
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  4. Rideandrepair

    Rideandrepair Road Train Member

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    That’s odd. The chances are too great. Maybe a oil supply tube restriction? Post the engine make, maybe one of the real Mechanics on here will have some idea. Newer Turbos are complicated. Might be something unique to the engine they’ve seen. Im guessing it a Paccar or a Cummins engine. Extra info might help them figure it out.
     
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  5. lester

    lester Road Train Member

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    Who replaced the turbos? A good shop or did your husband do it himself?

    If the first turbo grenaded itself it sent shrapnel flying everywhere and the entire air intake piping new disassembled and cleaned and the air to air cooler
     
    Midwest Trucker and AModelCat Thank this.
  6. BoxCarKidd

    BoxCarKidd Road Train Member

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    How was it lubricated after installation?
     
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  7. AModelCat

    AModelCat Road Train Member

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    Many things. Need to know the nature of the failures if you want better answers.



    Was the exhaust and intake cleaned out properly? Was the turbo pre-lubed with clean oil at installation? Genuine OEM turbo or cheap aftermarket junk? If its leaking oil into the exhaust is it possible its coming from the engine itself?
     
  8. jamespmack

    jamespmack Road Train Member

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    Funny how many people don't check air filters for metal after a koooboom.
     
  9. MLC Adventures

    MLC Adventures Medium Load Member

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    As already mentioned, oil supply or return blockage, debris damage after the first failed turbo.

    But has it been recently deleted?
     
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