6NZ oil out of blowby tube

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kdub99, Apr 23, 2023.

  1. Kdub99

    Kdub99 Bobtail Member

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    May 8, 2019
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    Not really burning as dripping oil
     
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  3. IH9300SBA

    IH9300SBA Road Train Member

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    Could be oil carryover from the baffle in the valve cover coming loose?
     
  4. Oxbow

    Oxbow Road Train Member

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    Good Idea! Aside from taking an oil sample and changing the oil and filter, maybe popping the valve cover off and looking to see that there is no shield that has come loose that is intended to keep splash oil out of the blowby. It sure won't cost anything but a bit of time.
     
    HoundDog7, lwlevens and IH9300SBA Thank this.
  5. Kdub99

    Kdub99 Bobtail Member

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    May 8, 2019
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    Will be popping the valve cover open and checking
     
    IH9300SBA and Oxbow Thank this.
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