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C-15 ACERT

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Superhauler, Sep 19, 2011.

Page 3 of 4
  1. Oct 5, 2011 #21
    BretStep

    BretStep Light Load Member

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    Sep 27, 2011
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    They parts gets loose from material wearing away from the friction. A diesel engine is whats called a compression ignigion engine, whereby when the fuel air mixture is compressed high enough it explodes or ignites from the pressure and heat associated with compression. The compression ratio of a diesel is 17:1 +, which is twice that of a gas engine. A gas engine has a spark plug to ignite the fuel air mixture at a specific time.
     
    BretStep, Oct 5, 2011
    BretStep, Oct 5, 2011
    #21
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  3. Oct 5, 2011 #22
    Superhauler

    Superhauler TEACHER OF MEN

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    we are talking about an overhead valve adjustment as the valves wear into the seat your valve lash adjustment gets tighter not looser, because the valve stem is rising as the valve seat is wearing.if its getting loose you have a cam lobe wearing or rocker arm wearing or a rocker shaft wearing out. and thats a whole other problem!
     
    Superhauler, Oct 5, 2011
    Superhauler, Oct 5, 2011
    #22
  4. Oct 5, 2011 #23
    rollin coal

    rollin coal Road Train Member

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    Yeah I'm glad you guys pointed that out about if any of them are loose when doing an overhead. So I've got questions to ask when it gets set the next time that I didn't even know I should be asking.
     
    rollin coal, Oct 5, 2011
    rollin coal, Oct 5, 2011
    #23
  5. Oct 5, 2011 #24
    Superhauler

    Superhauler TEACHER OF MEN

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    yep i dont have all the answers, i learn by hands on and i am not afraid to ask the stupid questions. im just a backyard parts changer. i have learned that the only person i can trust is me period. if i mess up or dont know the answer, i will admit it. im not a genius. heck i own and operate a truck thats not a genius by along shot.:biggrin_25525:
     
    Superhauler, Oct 5, 2011
    Superhauler, Oct 5, 2011
    #24
  7. Oct 6, 2011 #25
    belltransit

    belltransit Light Load Member

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    Jun 28, 2010
    oak grove, mo
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    i glad to know new things too...so if a truck has never had an overhead ran from the time it was new and it has 577000 on it then the rockers would be gettin so tight that they take a chance of breaking.
     
    belltransit, Oct 6, 2011
    belltransit, Oct 6, 2011
    #25
  8. Oct 6, 2011 #26
    Superhauler

    Superhauler TEACHER OF MEN

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    yep. something might
     
    Superhauler, Oct 6, 2011
    Superhauler, Oct 6, 2011
    #26
  9. Oct 6, 2011 #27
    07-379Pete

    07-379Pete Crusty Commando-Pete

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    You have an Acert with 577000 and never had an overhead???:biggrin_25521:
     
    07-379Pete, Oct 6, 2011
    07-379Pete, Oct 6, 2011
    #27
  10. Jan 5, 2012 #28
    625CAT

    625CAT Bobtail Member

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    Jan 5, 2012
    Stayner, ON
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    I have a 625 CAT, looking to get lots of black smoke. I have heard alot about this resistor going on the boost sensor? just wondering if anyone could explain how this works and if it is true?
    thanks.
     
    625CAT, Jan 5, 2012
    625CAT, Jan 5, 2012
    #28
  11. Jan 5, 2012 #29
    05379

    05379 Light Load Member

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    Nov 15, 2008
    montague ma
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    yes it is true you can make one your self or buy one it fools the computer into thinking it has more boost then it does so it adds more fuel causing smoke hope this helps. what year is your cat?
     
    05379, Jan 5, 2012
    05379, Jan 5, 2012
    #29
  12. Jan 6, 2012 #30
    Jfaulk99

    Jfaulk99 Road Train Member

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    Cover your air filter(s) with plastic bags if all you want is smoke.:smt064
     
    Jfaulk99, Jan 6, 2012
    Jfaulk99, Jan 6, 2012
    #30
    SmoothShifter Thanks this.
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