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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Slight bends in pushrods
Discussion in 'Kenworth Forum' started by irishluck09, Feb 2, 2026.
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I think @Oldman83 has and N14, he might be able to help. Or @OLDSKOOLERnWV might be able to help
Oxbow and OLDSKOOLERnWV Thank this. -
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.Bean Jr., OLDSKOOLERnWV, Oxbow and 3 others Thank this. -
So when I roll them its a very very little wobble. Replace them?
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I dont have a problem replacing, just sucks because ill have to wait another week till they arrive lolBean Jr. and OLDSKOOLERnWV Thank this.
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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.
Bean Jr., OLDSKOOLERnWV, Oxbow and 2 others Thank this. -
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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?
W923 Thanks this. -
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 mentionedDiesel Dave Thanks this. -
Replace them!
Sons Hero and OLDSKOOLERnWV Thank this.
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