W900 Exhaust Rusted Out

Discussion in 'Kenworth Forum' started by JonasTtrucker, May 21, 2018.

  1. JonasTtrucker

    JonasTtrucker Light Load Member

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    Apr 26, 2018
    St. Louis, MO
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    I have a 1998 W900 and the exhaust pipe that runs under the truck and Y's out to the two stacks is rusted and as a about a 3 inch hole in it. I am sure if I pull it out I might find others or soon there will be anyway. Anyone else ever dealt with this and if so what did you find the best way to fix it?
     
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  3. Superhauler

    Superhauler TEACHER OF MEN

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    keep stroking.
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    Simple if it looks bad it gets replaced. Normal on the W900L exhaust if the year pipe is shot the other one are not far behind.
     
    blairandgretchen Thanks this.
  4. Long FLD

    Long FLD Road Train Member

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    Start at the turbo and just replace it all. You’ll be money and time ahead in the long run.
     
  5. Cat sdp

    Cat sdp . .

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    If your going keep the truck, what he said ^
     
    Long FLD Thanks this.
  6. blairandgretchen

    blairandgretchen Road Train Member

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    In the shop we go . . .

    "Peel her off boys! 8" stacks, replace the lot from turbo to tip - and give her a wash and wax while you're there!"

    Rates are good right now - no reason to skimp on required maintenance.
     
    DSK333 and wore out Thank this.
  7. baha

    baha Road Train Member

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    Truck/pro sells the y pipe and all the flex pipe and a 6ft pipe you can cut to run all the way to 6in or even 8in stacks?
     
  8. Caterpillar Cowboy

    Caterpillar Cowboy Heavy Load Member

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    Wyoming
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    Rusted exhaust is the #1 tell tale sign that your muffler bearing isn't getting greased often enough!
     
    Oldironfan, Roberts450 and Bean Jr. Thank this.
  9. Cam Roberts

    Cam Roberts Road Train Member

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    This can’t be a serious question. Replace and upgrade the exhaust. Unless you were looking for moral support to use 2 dollar pep boys muffler wrap
     
    Oldironfan Thanks this.
  10. tommygun58

    tommygun58 Light Load Member

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    Sep 22, 2015
    East Texas
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    I have a 99 and it was all rusted out pretty bad. My Y was OK, but I had to replace elbows and stacks. 4 state hooked me up with 6" for about $1400. If its just the Y, I would just replace it.
     
  11. tommygun58

    tommygun58 Light Load Member

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    Sep 22, 2015
    East Texas
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    4 state can hook you up. I have a 99 and went with 6" elbows and stacks. My Y was OK, but elbows and stacks were toast. Easy to replace
     
  12. skallagrime

    skallagrime Road Train Member

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    Just an FYI, if you don't want to replace the flex pipe every 3 years, buy stainless not galvanize, I got mine on Amazon for cheaper than everyone else wanted for galvanize

    Also, with the clamps, don't even think of reusing em, just grab your grinder and slice them off, you'll be time and frustration ahead
     
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