06mxs acert c15 boost problems

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Gunsmoke77, Apr 27, 2019.

  1. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    7000 lbs of turbos hanging off four 3/8" studs. My money is on a broken turbo/manifold stud.
     
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  3. Goodysnap

    Goodysnap Road Train Member

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    Technically only one turbocharger is weighing on the manifold, and it's the smaller of the two. The lower turbo mounts to a bracket which is bolted directly to the block.
     
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  4. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Is a BXS turbo setup different than an MXS? I was positive it was the big one that was bolted to the center section of the manifold.

    My NXS is at home so I can't look at that one either.
     
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  5. lilillill

    lilillill Sarcasm... it's not just for breakfast

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    Nope, you're right... my bad. Just dug up some pictures of when I replaced the studs on the old BXS and it is the smaller one.
     
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  6. Guntoter

    Guntoter Road Train Member

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    They are bolted in two different spots. Screen Shot 2020-08-05 at 7.30.47 AM.png
     
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  7. Brettj3876

    Brettj3876 Road Train Member

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    Guntoter Thanks this.
  8. Guntoter

    Guntoter Road Train Member

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    Thank you sir.
    Screen Shot 2020-08-05 at 6.01.31 PM.png
     
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  9. Chucksaxton

    Chucksaxton Bobtail Member

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    I had the sam
     
  10. Chucksaxton

    Chucksaxton Bobtail Member

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    I had same problem on an international 9900i with c-15 cat. I have 30 years experience in heavy duty truck repair, and this one like to have drove me crazy. Finally found the problem, my air charge cooler was stopped up on the inside. Took it off used some aluminum bright on the inside and pressure washed it. Before washing with a load I could not build 4 or 5 boost ,after almost 30 psi.
     
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