https://youtu.be/j4huNzgz3uw

Cell video of my truck, you can see the smoke. It has 8 new stanadyne E codes. A new injection pump,, electronic fuel pump, it still is smoking like crazy and running extremely rough. Look at the serpentine belt jumping in the video. Timing is slightly advanced. What else needs to be checked. Im lost. 90k miles on the engine. Not using coolant. Smoke smells like fuel

 

You've got a dead miss on one cylinder. Check to make sure that the line on one isn't loose.

Then, go through each cylinder with a wrench - loosen each injector line at the injector for a second, see how it changes the sound(with the engine idling).

Chances are, you'll find one cylinder which doesn't change the sound at all(or very faintly) when you loosen the line.

Then, next thing - Pull that injector. Swap in an old one if you have one. See what happens.

You can also swap two different injectors and see if the problem moves, or stays in the same spot.
If it stays in the same spot after swapping a known-good injector from another cylinder, pull the valve cover and look at the valve train.

The white smoke is due to the dead miss - it's pretty clear one cylinder isn't firing.

My guess is dead injector.

 

I put a set of 8 injectors in that i pop tested at work, pulled driver side valve cover. Ill have to pull the passenger side, sucks its 19 degrees out! All the rockers were good and tight on the driver side.

 

Finally found my problem. Loose rocker arm on passenger side front most cylinder

 

Intake or exhaust, or both?

 

not sure. It was the back rocker of the two for that cylinder.

 

OK, looking at a diagram, the back rocker(rocker #2 counting backwards from the frontmost on the passenger side) would be the intake rocker.

That would explain it - without getting (much) air into the cylinder, the pressures wouldn't be high enough to ignite the diesel, so it would pass unburned into the exhaust.