It looks like a have the new style fuel head from what I read here. I also watched the youtube video but I can't get any fuel out. I pumped, then cracked the bleed screw but nothing comes out. I even put a Mityvac on it. Pumped it up and cracked the screw. Still nothing. I left it open a bit, primed and sucked together. After a few minutes I got a little spittle but that's all. I pumped both until my arms cramped but still nothing. I closed the screw and started the engine with no problem.
The previous owner replaced replaced the stock plastic tank with a steel tank. I guess he punctured it with a trailer tongue because the steel one has a dent in it too. All the hoses look like they have been replaced recently but I removed all the splices and replaced all the screw clamps with EFI clamps. I don't know where else to look for a leak.
How does the engine even run? Sure, it misses a little at idle. That's why I decided to bleed it. But shouldn't it die with an air leak so big that I can't bleed the fuel head??
Now the plunger pump works like it is supposed to.
If someone had the time to do the design work and work out the Chemistry, it is possible one could drink a lot of coffee and process their #1 into Urea by removing the salt with reverse osmosis. Then the on board brewed DEF could be injected or dribbled into the exhaust and lower the NOX with out EGR. I would be that ORT drivers would love this set up, they could drink lots of coffee, not have to stop to get rid of it, and save money by brewing their own DEF. I am surprised CARB and EPA have not made this mandatory. 