12.7 questions

I am worried now about injectors that I don't see much fuel coming out return, but then as long as I cranked with no fire, if I had an injector open, I should notice a rise in oil, I would think.

 

So you are telling me I can relax on the injectors? I hope this is good news. I did go crank on it some more. And now I see diesel draining out the return. Not much, but some. I am still baffled as there should be like a check valve at the rear of the head there, and there is none.
Could it possibly be further down the line?

 

Done. All of the above. I worry about crank and cam sensor as I just changed them recently. Had the truck into detroit just before all of this and they swore there were no codes. The codes will flash to me if they are there. And being as there were no codes, this was why I took off in the fuel direction. And I am perplexed at why there is no check valve on the return. If I could get the system to go to 20 lbs and stay there, I would relax on that and go to something else like SRS/TRS. Or maybe even ECM.but but they say if you ain't got 20 lbs, your injectors ain't gonna function anyway.

 

Just stuck a wire in the 90 at th back of the block. And there seems to be no obstruction at the rear of the head and I looked as far down the hose as I could and there seems to be no check valves. Is there something in the cross over that will restrict flow?

 

Well, I have it all hooked up. I went back and cracked the line at there secondary filter when somebody wondered about that. And fuel ran out. Now, I have the fuel line together all the way to the back of the head. If I crank, and look under the truck, I can see a little fuel running out. Just stuck on what might restrict the fuel and hold it in the line.