back side of the injection pump. Thanks. I'm open to checking out ANYHTING that has a chance to help me solve this low fuel pressure issue. And I was thinking along the lines as you just stated about function of the barrels inside the injection pump producing the pressure. That is where those copper gaskets would come into play, just trying to figure out what is going on without having concrete data and information relating to the Bosch injection pump. I know that I can loosen the valve seal holders and get plenty of fuel. I just can't get it to pop pressure, where I can see the fuel being injected "outside" of the engine, which I would think should be able to be acccomplished and also know that I could be wrong. But everything I've read states that the injection pump is a mechanical pump, but then again the 603 pump has an electrical component (idle control) at the very back of the pump, which I don't know how the big red idle control, electro mechanical mechanism functions in relationship to affecting fuel pump pressure. Again, thanks and any relevant information is very well appreciated by me and will be checked out.

BenzDiesel