73m819, let me answer your question like this.
Assuming your not having difficulty starting the 8V92, but there is a definitive amount of fuel in the oil ((often not only can it be smelled but the oil, level consistently seems to stay at the same level, for those familiar, by design this engine uses oil at a rate of 1 quart for every tank of fuel, it's due to the 2 stroke port configuration wiping oil from the rings, and the seepage from oil getting past the rotor vanes on the supercharger next to the gearcase on older engines.))
If your engine is *easy* to start, but is obviously passing fuel to the engine oil, your first check is in fact the injector supply lines under the rocker covers.
If the engine seems to be difficult to start cold, or is cosistently lacking power, then it is also possible you have a faulty injector(s), which if your familiar with the 8V92, if the injector is not spraying, but is streaming out fuel, it will simply wipe the oil from the cylinder wall and will not build enough compression to start the engine without cranking over and over and over, this fuel must go somewhere...right down into the crankcase.
If the second is the case, before suspecting the injector itself ((very unlikely on this series engine))you should check it's timing with a depth gauge, off hand i do not know the depth it is supposed to be set at ((Something like 1.465" don't quote that, ill verify in a few days))
But scratch all that for now, let me give you a flow chart to go off.
1.Does engine start easily.
2. ASSUMING it does, take off your rocker covers, start engine and idle, this is a great time to check your lines, they will visibly drip at the fitting if they are leaking, they are also made from stainless and quite brittle, so if you must tighten them be careful for twisting, there are three variations of the 8V92TA I know of, with small design changes in everything from fuel pumps to the materials used in injectors and lines, even the crankcase breather tubes, slobber vents and so on, so if you have difficulty send me the serial number of your truck ill look it up.
3. If you find NO leaks, there are two versions of this particular engine, one was a design flaw of the fuel pump, if the pump bearing went bad, and blew the seal it leaked fuel into the engine, at the same time an additional symptom was the engine to not start after sitting for some time. Then when investigated, the fuel filters to be empty. ((we corrected that in a pinch by using compressed air in the fuel tank itself to forcefeed the system))
Things CAN get complicated, but I think you hit it on the head, especially if it feels like one particular cylinder or part of a bank of cylinders just isnt getting all the fuel the rest are.
Look for a slight leak, it's gonna be a hard drip to find, but then again I highly doubt you use the Hemmt like soldiers do, and this is an engine suspect to wet stacking moreso than any other engine in our current fleet. Your best bet if you reach no conclusion is to literally take it out and run the ever loving *ell out of it and *if* it is leaking fuel it will be evident surely upon your return.
Sorry for my rambling, my thoughts can be hard to follow, but yea...that should be helpful.
