Join Date: Oct 2007
Location: Beacon Falls CT USA
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I have an M4-30 that is self bleeding...but every once in a while, depending on how intrusive my maintenance may have been, i find it necessary to bleed in order to get her to run.
The process is simple on mine...hope it helps you with yours:
Be sure to have the area very clean in advance and have rags on hand to sop up any spillage.
Next, be sure you need to bleed. Double check that you have fuel being delivered to the engine's high-pressure pump by first bleeding that connection.
If you see clean, bubble-free flow to this unit, proceed to the injectors.
Begin with the injector nearest the engine's high-pressure pump output line.
Have someone crank the engine while you 'crack' open an injector. By "crack," I mean attempt to unscrew the fuel supply at the injector. An injector is 'bled' when you see a steady stream of fuel for a 5 to 10 seconds with no air bubbles.
Repeat on all injectors continuing in the order of fuel flow.
FYI. I am not a deisel mechanic...but I have hacked my way to partial compitence through trial and error. Please take my advice with an understanding that there may be a better, safer way to do what you're attempting....but if no one else answers and you're stuck...hey...give it a try.