I've been burning fuel of late, a lot of blue smoking coming out of the tailpipe and heavy smell of diesel in the air. No visible signs of fuel leakage in the engine compartment except for what I'm calling the "overflow line" that comes from a fitting at the front of injector #1 (closest to front of car) and snakes over to a fitting just in front of the fuel filter. This is a cloth covered line and the part of the line closest to the fuel filter, which is the farthest "down hill", is soaked with diesel. I removed the plastic head cover to get a better look at what is going on, and exposed the tops of the five injectors that all sit down in what I'm calling their own, individual "well". Each of the wells are full of diesel fuel although it doesn't look as if the fuel is overflowing out of the well itself. I see no evidence where it is overflowing the well and leaking down over the head into the engine compartment. In fact there isn't much of a diesel smell in the engine compartment but there sure is coming out of the tailpipe when the engine is running. Each injector has a fitting, front and back, has what looks to be a fuel line going into it on one side and then coming out of it on the other. I'm guessing this is some sort of overflow line. Starting at injector #5, closest to the firewall, there is what looks to be about a 2" fuel line coming out of the back side of the injector (closest to the fire wall). The fuel line has a steel plug in it. In front of injector #5 there is a similar line that is not plugged but comes up out of the "well" then then goes over to the back side of injector #4. A line comes out of the front side of injector #4 and goes to the back side of injector #3. This progression goes all the way to injector #1 where the aforementioned line that come out of the front of injector #1 goes over to a push-on fitting just in front of the fuel filter where, I'm guessing, it is recirculated into the system. Any ideas on what's going on here? Why are the "wells" are full? Why I'm burning fuel? As always your insights are welcome and appreciated!!!