I removed all the turbo pipes and intercooler and cleaned them with a degreaser. With the intercooler, I further had to verify with a flash light and guess work whether I was able to get all the metal pieces out. (Turbo wheel exploded, throwing shrapnel into the incoming side of the intercooler.)
In total the intercooler had about a quart of oil pooled. Diesel intercoolers by default will accumulate oil and I'm not sure how long it had been since the last draining, however that would have been ounces of oil we're talking about.
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