Your going to need to bleed the system up to the injector pump
using the lift
pump (cranking the engine) with the bleed screws on the filter. Once bubbles stop coming out of the bleed screw, that is your only getting fuel out. Close the filter bleed screw.
Now open the bleed screw on the injector pump
and repeat using the lift
pump till only fuel comes out. Stop and close the bleed screw.
Take a wench an break open / loosen the nuts that connect each injector high pressure line to each injector. Crank the engine for 15-30 second (close the raw water
first). Tighten the nuts, open the raw water
sea cock and try starting the engine. Most likely it will not start. Repeat the sequence with loosening all the injector hp connections at the injectors etc. You may need to do that 3-6 times depending on how much air is in the lines.
I put a bit of paper towel down under each nut to see if the fuel drips out, you only loosen the nuts about a 1/4/1/2 turn. It can take 30 minutes or more to get the air out of the lines.
BTW, never blow air into a diesel line. All of the air has to get out of the HP lines before the diesel will start. On my 3 cylinder, air in one line will keep the engine from running, as the compression is too high on the non firing cylinder when its cold.