There should be a drain line from the bottom of the injection pump housing. This catches any fuel that leaks around the pump plungers and is deflected into a catch trough and drained away before it dilutes the lubricating oil in the lower part of the housing.
It sounds as if your drain line has been capped off, crushed or just plain clogged. There are also drains from the vent on the top of the filter tower where you bleed the filters as well as the fuel transfer pump seal and the injector waste line that connects along the top of the injectors.
As for the power, what kind of smoke does it make and how does it sound when you load it? Missing? LOTS of black smoke?
What does your fuel pressure gauge indicate while running?
CCJ
No smoke while pushing just kind of "normal idle" exhaust. That too suprised me. I expected black smoke when I got to pushing on the stump but the cat just dug in the tracks. MAybe a little grey exhaust but not what the D6 does under load pushing rocks, dirt etc.
As for my fuel pressure gauge, I think it is broken as it reads straight up all the time, at least from what I could tell. I am going back out there tomorrow to check it out again so I will check on it and post again.
Thanks
Tom
With the new fuels there are vast reductions in exhaust particulate. I was digging out a tree with my 5J over Fathers Day weekend. (We didn't get any pictures until the tree was on a trailer being towed down the road) Getting right down in the hole and lug the engine down still didn't always indicate black smoke. Those little tractors will get right down and spin both tracks as they are dropping in RPMs. I account most of the black smoke reduction to the new cleaner fuel available.
I was surprised at the lack of the black plume under load, I see these pictures of the bigger machines under load looking like the old 97 steam locomotive.
I was pushing stumps with my 5U D2 and the exhaust was almost clear and she was working at just the point of tracks slippingšmokin: good load, good traction
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