Isuzu Repair: 1986 Trooper Diesel losing motor oil., 4 quarts, exhaust pipes

Question
Hi!  My question that has so far baffled the local Isuzu experts at the local dealerships is :

What could be causing my Trooper Diesel to lose motor oil into (note: INTO) the exhaust system. It (oil) is NOT going into the comb chambers and burning off. It actually is somehow getting into the exhaust pipes and blowing out as a liquid. I let is idle (very little smoke) and in 3 hours, it lost 4 quarts of motor oil into the pipes. (exhaust)

I revved it up and the oil shot out the tailpipe like a fire hose with water.  the turbo is tight and no oil bypasses there either, i.e. motor oil burning.

Really need some advise as the trooper is just gonna sit till this is figured out.

Many thanks- Jim

Answer
Well I would suspect a cracked block,bad bearings or blown gasket of some sort Jim. If it is not getting into the comb chambers maybe through a line it's not suppose to be going through! Although Since I can't see it it would be hard for me to give you an accurate answer, I am sorry if I couldn't help.