After looking around the wiki and Googling a bit, it is still unclear to me what version of BuildCraft is included currently in New Tekkit/New Tekkit Server. The reason I am trying to determine the version is because I am having major issues with engines powering down, and therefore not powering any number of machines.
My current setup: Up to 8 Combustion Engines using fuel, fully supplied with water.
Wooden conductive pipes on top of each engine, followed by a central hub of golden conductive wires leading to my machinery.
The problem: Even though there is a demand for power, the engines stop pumping. For instance, a quarry will not operate, even though it is hooked up to the power grid. No power is output, and the engines' stored energy just sky-rockets. The number of engines does not seem to matter, in that I can remove piping from all but one engine, all the way up to 8 and nothing changes.
I have even allowed the stored energy to drain, and powered the system back on to no avail. A temporary fix was to add a Redstone Energy Cell (set to allow an input of 100MJ/t), which allowed power to flow once again. However, now this will not even work (I have tried with 1 cell, and 2, with every combination of engines). What am I missing?
TLDR: What version of BuildCraft is included in New Tekkit/New Tekkit Server, and why aren't my engines working?