1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Wa 450-2 loader , fuel smoke issues

Discussion in 'Wheel Loaders' started by chris allen, Oct 20, 2020.

  1. chris allen

    chris allen Senior Member

    Joined:
    Feb 11, 2014
    Messages:
    353
    Occupation:
    Feild tech
    Location:
    georgia
    We got a old dinosaur loader we run around everyday, an it’s seems to be over fueling, can smell it in the exhaust, an it blows black smoke when hammering down on throttle,an it’s smokes blue when idleing, just had motor rebuild an had all injectors reworked , then crankshaft had broke, so I replaced it an it started the over fueling again (I think) over head was done an injectors were set at 6” pounds (used the correct Cummins tool). Starts rite up just smoking lil heavy. Would love some advice, PT fuel pump has been reworked few yrs ago too. Any ideas or advice would be gladly appreciated. Thx
     
  2. funwithfuel

    funwithfuel Senior Member

    Joined:
    Mar 7, 2017
    Messages:
    4,443
    Occupation:
    Mechanic
    Location:
    Will county Illinois
    Blue smoke says you're probably pulling oil past valves or turbo is slobbering. Black says overfuel. That could be a boost leak, damaged turbo or bad injector. Is your fuel return smooth and free flowing? Is your AFC in place? Is the pipe kinked? How about your air cleaner? How does it act when warmed up?
     
    mg2361 likes this.
  3. chris allen

    chris allen Senior Member

    Joined:
    Feb 11, 2014
    Messages:
    353
    Occupation:
    Feild tech
    Location:
    georgia
    Just had turbo reworked few months ago it’s the (water cooled) one an all the injectors just been reworked, new head, new crankshaft, New inner an outer air filters,Idles with heavy blue smoke an can really smell the fuel, river motor up hard an will roll black smoke and then eventually lets up , get back on it again an rolls more black smoke, Just seems like an over fueling issues, Doesn’t use any oil . Hadn’t checked fuel return from head back to pt pump, I’ll check my cooler for leaks aswell. Thx for ur input
     
  4. funwithfuel

    funwithfuel Senior Member

    Joined:
    Mar 7, 2017
    Messages:
    4,443
    Occupation:
    Mechanic
    Location:
    Will county Illinois
    So, that should be an L10. Can you tell us if it is an L10 celect or STC or an LTA 10
    Either way, the intake manifold/rocker box has always had issues with failing the intake ports. Might be pulling oil in from around the injectors. Is your throttle response sluggish or snappy? How did you run the overhead? I would suggest using OBC method vs IBC method. If you have STC and the solenoid is bad, she'll smoke like a pig. Do you have an oil manifold feeding the injectors under the valve cover?
     
    John C. and mg2361 like this.
  5. chris allen

    chris allen Senior Member

    Joined:
    Feb 11, 2014
    Messages:
    353
    Occupation:
    Feild tech
    Location:
    georgia
    It’s the LTA10. With the big ole rocker box I used the timeing method were ya see what letters on the accessory drive pulley an did the injector on one hole an valves on a differ hole. Used a Cummings 6 inch pound break away t handle tool. Motor is not a stc.
     
  6. funwithfuel

    funwithfuel Senior Member

    Joined:
    Mar 7, 2017
    Messages:
    4,443
    Occupation:
    Mechanic
    Location:
    Will county Illinois
    Have you heard, or are you familiar with OBC method? I will post a link to very informative website, it is described clearly.
    http://www.chathamfuel.com/generic....Tech Tips - NT/N14 OBC Overhead Set Procedure
    This is by far the simplest method to reduce smoke. That said, since it's not STC and this engine has been mutted together from various parts. Are we 100% sure of cam / crank correlation. Not saying anyone is incapable, but accidents happen. Something to look at. I wouldn't be against removing the injectors and having the tested. ReCon doesn't mean it can't fail.
     
    mg2361 likes this.