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Cleaning soot from intake system

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Cruisser, Nov 17, 2015.

  1. Nov 17, 2015 #1
    Cruisser

    Cruisser Bobtail Member

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    Dec 12, 2011
    Aberdeen, SD
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    I am curious if anyone can give me an idea what it costs to clean the soot and replace the sensors on my ISX engine. The mechanics I have talked to so far won't give me a quote, just say they charge by the hour.

    I had an exhaust leak that did not let the turbo work correctly and now the inside of my intake and sensors are covered with soot. I know this has to have a big effect on my mileage, not to mention the longevity of my engine.
     
    Cruisser, Nov 17, 2015
    Cruisser, Nov 17, 2015
    #1
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  3. Nov 17, 2015 #2
    AModelCat

    AModelCat Road Train Member

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    If its a newer EGR engine, that soot is likely due to the nature of the EGR system. Most times the intakes on EGR-equiped diesel engines are sooted up as bad as the exhaust. I wish I took pictures of an Isuzu 6HK1 I rebuilt. It took me a minute or 2 to identify which ports were intake and which were exhaust.
     
    AModelCat, Nov 17, 2015
    AModelCat, Nov 17, 2015
    #2
    Cruisser Thanks this.
  4. Nov 17, 2015 #3
    tony97905

    tony97905 Road Train Member

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    What Northern said.....soot is normal on an EGR engine and yes it looks bad but that's what we're stuck with. A local utility company USED to clean soot deposits from the intake of their small Cummins engines until they left a hardened chunk laying loose that they knocked off and it caused piston/valve contact and major repair dollars.
     
    tony97905, Nov 17, 2015
    tony97905, Nov 17, 2015
    #3
    Cruisser and KB3MMX Thank this.
  5. Nov 18, 2015 #4
    062

    062 Road Train Member

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    It's not complicated work. Basically disassemble clean reassemble. You will need a couple big wrenches,compressor pipe will be like 1 1/2, don't lose o-ring. Sensors anywhere from 7/8 to 1 3/16.
    Look for "rawze egr tune up" on YouTube
     
    062, Nov 18, 2015
    062, Nov 18, 2015
    #4
    spax and Cruisser Thank this.
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