Thanks to all that replied, it was helpful, and thanks JD for the actual picture, i can make that.
Here is where i am now with it, for those keeping track...
This is a little 3-53 on a model 55 michigan loader. I blew out the fuel supply line and hooked up a little transfer pump to push fuel through both the strainer, fuel pump, filter, and i had fuel coming out the return. Blew the return back into the tank for good measure. So i set the injectors to 1.5, cranked it over, nothing, gave it a snort or two of ether, acted like it wanted to hit, had some white smoke, so i backed the injectors out, cranked and no white smoke. So i ran them in to around 1.4, white smoke, just wouldnt hit, bump of ether, wanted to hit but wouldnt take off.
This is where it got weird...When not cranking or running the transfer pump the fuel filter level would drop, and quick enough to see it drop but the only thing lower than it is the fuel pump itself, for fuel to run back past the strainer it has to go uphill. Theres no leaking out of the pump, i blew it all off so it was dry prior to all this. the crankcase level doesnt seem to be rising, so it had to be going somewhere, even the fuel return is above the filter. So i took a couple jugs, filled one and left the other for the return, when cranking there is fuel coming out of the return, but it just doesnt want to hit.
Based on the amount of rat poop on the head when i started, i have little faith that the the guy that replaced the injectors ran the rack, so that seems like my next step. I may also try bypassing the fuel pump and use my transfer pump to the filter and see what happens...
I am also open to suggestions...
Thanks again to everybody who chimed in! The clarification of the injector tool made a huge difference, ill machine out a couple of those now haha
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