You can pull the turbo, but will loose a lot of power.
Super chargers on diesel engines aren't efficient enough to be worth while, 25% of the power it makes goes to the supercharger, turbo is free power and the engine is run at a constant RPM anyway so the benefits or the supercharger are lost.
Do you have a dual stage air filter? Large paper element on the outside, small foam element on the inside with a large metal can? The can is designed to catch all the big stuff in the bottom of it, then the two filters get the rest. Maybe a seal is out in the can? Might be a loose hose on the intake side between the air filter and the intake?
How is the exhaust pointed? I had a Volvo wheel loader, came in with a blown turbo, put a new one on, it ran fine, sent it home. Came back a week later, blown turbo again. Boss was all up in my ass! Replaced it again. The boss and I watched them load it, then it hit me! They were loading it backwards on the trailer, the exhaust tip was turned to the back of the machine, air was turning the turbo as it went down the road! As stupid as it sounds, never saw that machine again!
Check the simple stuff first, keep the oil changed and clean, make sure there isn't air getting in anywhere it's not supposed to, keep the air filters clean, these things will suck air anyway they can!
. Put compressed air into the oil filler cap and it came out the breather pipe. Dont know, looking for a cheap turbo to try......
