From your discription of your problem, lack of fuel to the injectors is your primary problem. You need to first check for air leaks from your fuel tank to the pump. After you have corrected any problems found (no matter how small) check you pump to be sure it is pumping. remove it and put a finger over the suction port and depress the pump actuator arm and you should feel positive suction. If not, replace your fuel pump. If at this point all is good, check for leaks between the pump and primary fuel filter and so on to the injector pump. If all is good to that point you need to bleed each injector at the cylinders. crack the nut at the block and have someone turn the motor over with the starter until fuel and no air bubbles come out around the nut and while engine is still spinning, tighten the nut securely back to the engine block. do this with all injector lines and you should be running when the last line is bled!
good luck
Rickster
Presuming it is swinging (starter turning engine) and the
glow plugs are working well and diesel is clean, the other alternatives are a
drop in fuel pressure through the injectors which is necessary to ignite the
diesel, or engine compression. If the compression is too low the diesel will
not ignite. Test the injectors and
compression across al cylinders. Being a turbo the compression si already lowered and the slightest drop will have an effect. Happy hunting.
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