Slight bends in pushrods

Discussion in 'Kenworth Forum' started by irishluck09, Feb 2, 2026.

  1. irishluck09

    irishluck09 Light Load Member

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    98 w900 n14 cummins

    Doing an overhaul and while inspecting everything I went and checked the pushrod.
    All of the valve pushrod are fine but all the injector pushrod have a very slight bend in them. A few only have enough space to slide a piece of paper or 2 under it.

    Are they okay to run or should I replace them? Tried to get a few decent pics

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  3. Sons Hero

    Sons Hero Road Train Member

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    Oxbow and OLDSKOOLERnWV Thank this.
  4. Oldman83

    Oldman83 Heavy Load Member

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    If they wobble when you roll them, replace them.
    Drop all the others round end first onto a hard, flat surface and make sure they ring.
    If they thunk, replace them.
     
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  5. irishluck09

    irishluck09 Light Load Member

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    So when I roll them its a very very little wobble. Replace them?
     
  6. irishluck09

    irishluck09 Light Load Member

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    I dont have a problem replacing, just sucks because ill have to wait another week till they arrive lol
     
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  7. Oldman83

    Oldman83 Heavy Load Member

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    Yes, if they wobble they are compromised.
    Check ALL your pushrods that way, and do the drop test before you order. ;)
     
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  8. irishluck09

    irishluck09 Light Load Member

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    Will do, thank you!
     
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  9. irishluck09

    irishluck09 Light Load Member

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    BTW, idk if you ever saw my other post. I had cylinder 6 catastrophically fail. Cummins and kenworth are speculating a failed injector possibly. But I found this broke. Piece in my oil pan and Noone seems to know what it is. About 1x1" cast. Any thoughts?

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  10. W923

    W923 Road Train Member

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    The cast part looks like part of the piston skirt except that it’s not aluminum or doesn’t appear to be…as far as the pushrods I would probably use them…I had a similar deal with one a couple years ago and decided to replace them only to find that the brand new from the Cummins box were not any better….
    I have since rolled most of them from those engines and found very few are perfectly straight. Idk if I’ve just been unlucky or what. I would make sure they have a ring to them as others have mentioned
     
    Diesel Dave Thanks this.
  11. ElmerFudpucker

    ElmerFudpucker Road Train Member

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