should I try my funnel fuel feeding unplugging the sensor and some gas to get it to fire up?

 

might be the right idea .... couldnt hurt at this point ...

if you can ... get a old propane tank ... pull the guts and make a priming tank out of it .... we use it on our detroit 8V and 6V two strokes ....

 

you know, what also works well is one of those garden (Hudson) sprayers. remove the wand and connect the hose to the fuel filter. fill it with diesel and pump it up. cheap too

 

the rails had air I bled them pored gas in hooked factory fuel system up with clear lines unhooked that sensor she cranked ran up 1200 oil psi ran up 80 injectors were knocking it ran about 15 sec in the middle of that time the injectors stopped knocking like it was running on fuel did that for 3-4 sec then they started knocking again and after a few more sec it died that was the most successful attempt o the 4 it is fully primed and holding it just won't fire the FICM is missing the rubber vent in it and had been pressure washed with it like this is it possible the FICM has gotten wet inside and has failed?

 

WOW!, to think that this may have been the reason for so much trouble with your engine. it is hard to tell sitting on the other side of the computer if this is your problem but water is no good for the FCIM. the FCIM boosts the injector voltage to 96 volts so water is no good anywhere inside the FCIM.

it did seem promising that it was able to run for a short bit so the FCIM may not be trashed. what about removing it and cleaning it out inside just incase? pour denatured alcohol into the vent hole and shake it around. then put it somewhere warm to dry out for a while then spray some WD-40 inside to displace any possible moisture left. i dont think it would hurt at this point.

have you got a code reader yet?

 

I did all that when it was out for injectors I can read dcts but that's all only code is the same p0380 it's had for years

 

now the rear main seal is leaking

 

So your fcim is toast and now your real seal is leaking .....get it running ( could be leaking fom sitting ) .... are detroit's do that sometimes ... then first run up the pass they are no longer leaking ... YAY !!!!

 

im not sure whats wrong yet everything seems ok but if it was ok itd run so at the moment its fully primed and holding no leaks im trying to get a scanner out here looks like she might be getting a 200 mile ride on a roll back to a dealer (ouch!) but thats all i can find and im hoping thats why its leaking it just got dry from sitting not moving oil and now that its moved oil its leaking course it shrink maybe it will swell back up and seal its not a big leak maybe an 1/2 oz

 

well ... I admire you for your real hard work my friend .... you have fought a great battle .... I know the feeling ... and its probably real simple fix too .... may be best to have the dealer look it over .