2007 Cummins ism issues

[ktbtrucking]

looks like cm870, do you have insite ( you can check actuator under tests with it)
is the truck demandated? hoe many miles
so with a wrench you were able to move it when mounted on turbo and when you dissasembled it from the turbo actuator(silver thing) arm do not move ? there is only a spring inside it
also if you idling there is no much pressure on exhaust side so moving actuator arm/shroud plate should not do much of a difference
if it is not demandated it might be egr valve sticking and it causes black smoke
if your oil dipstick goes out it means you have a lot of pressure in crankshaft area,
what about blowby tube?