New injector torque specs big cam Cummins

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Binderdavemays1, Aug 6, 2024.

  1. Star Rider

    Star Rider Road Train Member

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    The one on the top right, and that's the one that will have the ABC markings also.
     
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  2. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Top right is the accessory drive just as @Star Rider mentioned. Look for the bigger nut in the center, that’s what you’ll use to rotate the engine, as well as align your A/B/C marks with the pointer on the front cover behind the accessory drive pulley….

    IMG_8301.jpeg
     
  3. Binderdavemays1

    Binderdavemays1 Light Load Member

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    Sweet thank you both
     
  4. Binderdavemays1

    Binderdavemays1 Light Load Member

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    How do you determine which direction the crankshaft turns? So I can adjust the injector torque….
    I hate to keep asking dumb questions but I don’t want to mess up
    Also here is a pic I took from side of motor. In chalk
     
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  5. Binderdavemays1

    Binderdavemays1 Light Load Member

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  6. Big Road Skateboard

    Big Road Skateboard Road Train Member

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  7. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Crank & accessory drive both turn the same direction. Handle up on your ratchet and pull down towards left side of truck….
     
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  8. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    Here’s the alignment pointer….

    IMG_8325.jpeg
     
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  9. OLDSKOOLERnWV

    OLDSKOOLERnWV Captain Redbeard

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    The A/B/C will be on the back of the accessory drive pulley, clean it off as you rotate it and look for the little mark with the A B or C beside it.

    Just a suggestion… if you start with B it will probably be easier on you.

    On B you will be set for cylinder 3 or 4 ( center head). After you roll up on B see which rockers are loose… cylinder 3 or cylinder 4. Make sure both rockers on that cylinder are loose!

    Example: Cylinder 4 rockers are loose… replace and adjust injector 1.

    Cylinder 3 rockers are loose, replace and adjust injector 6.

    Then work your way down the chart as you rotate the engine to the next mark which would be C….

    IMG_8326.jpeg IMG_8327.jpeg
     
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  10. Binderdavemays1

    Binderdavemays1 Light Load Member

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    Awesome information thanks so much
    Do you think I can put a little transmission fluid down the new injectors if I pull the top stop pins or do I need to pull the injectors back out?
    Also I aligned the small injector screens to exhausts side of the engine im assuming that is correct?