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Yep, what mkee said! remember this is a direct injection engine, so when the cylinder is in the firing position (valves closed) that injector MUST be closed or combustion pressure will enter the fuel injector and fuel rail?? wreaking havoc and making it run rough and smoke a lot {ask me how I...

I verified the acc drive marks using the dial indicator on #5 injector. as #5 just starts moving; that should be 1-6VS and can be marked as such in the event the acc. drive is on wrong or slipped. used dial indicator because turning the engine by hand is too slow to really watch #5. if its not...

smitty, please read this thread: Nhc250 valve injector overhead adjusting It will answer all of your questions. It is information from the guru of all things Cummins, Will Wagner :doh:

Thanks Indy, lessoned learned the hard way are not easily forgotten! :whistle:

I agree with others, sounds like too much fuel getting in there. Definetly check that oil level, and test the engine oil on your skin, you can tell if it has fuel in it(very thin and will wick out the cracks in your skin quickly). I had colder #! and #6 cylinders manifold temps but I think that...