Cat 3406b blowing oil out exhaust

Here's the deal. I've got a fish boat with a 3406b 325 hp industrial motor in it. The motor has only 170hrs since major.Engine got new bearings, pistons, rings, sleeves,rods,new injectors, pump recalibrated, the works. Head was redone by reputable shop in Sacramento.Mind you this was all done 10 years ago, and motor really never got to work in the 100 or so hrs it had since that time. When I brought it home (25 hour trip) it smoked like a ####### and was leaking oil out of the exhaust side of the turbo and burning off of the manifold. The previous owner was advised that the turbo seal had yet to seat properly, that didn't sound right to me. The motor really got to spewing when I put a load on it, but gradually cleared up and in an hour or so it was n't smoking at all. I thought fine lets go, and went ahead and brought the boat home. I thought my problem was solved until the next time I fired the motor up. Same thing all over again.The engine mind you, runs fine , no misses, pukes oil.... So, i put another turbo on it thinking the old boy i got the boat from new what he was saying, and 900 bucks later, no change... ( I have a perfectly good turbo for sale). So next step was to figure out where this oil was coming from. I believed it to be oil and not fuel because it wiped clean off my fingers. I removed exhaust, turbo and exhaust manifold to see what hole were wet, and found them all to be. Looked in holes and it didn't look like it was obviously coming down from the head. When engine was running I noticed a colder hole on no. 3 when I shot it with IR thermometer. cracked that injector and motor loped, figured it was firing...So back to the present. I fired engine with exhaust manifold off wasn't able to determine much before the smoke made my eyes burn. Seemed like there was oil spitting out of most if not all holes.. I thought next time I'm down there I would remove valve cover and see if anything obvious is going on in there. I'll wiggle on the valve stems, maybe fire it off again without the cover.. I'm thinking the sleeves are glazed due to improper break in. P.O. said he didn't run it with a load on it after the rebuild, and I'm thinking rings didn't get a chance to seat in properly. I don't have blow-by coming out of the dipstick. Trouble with dropping the pan is that it's in a boat and there isn't room to do that. The motor will have to come out to re ring, and I REALLY don't want to have to remove the engine as it will be a major PIA. I thought that if it's not the head and is in fact glazed sleeves, I could possibly drop pistons down and dingle berry out the holes. Also thought of the old Bonami trick. Not too sure, thought I'd throw it out to the experts and see if anybody's got an idea I haven't thought of... Come back.

 

A simpleton like me always checks the simple stuff first!

 

She burned about a gallon in a 25 hr run.

 

Could running the engine under loaded for 100 hrs be enough to glaze cylinders enough to push oil out exhaust? wouldn't I have a lot of blow-by in that case??injectors were new when engine was rebuilt. Hard to believe one could foul in that short time....