1991 Blazer w/1995 B5.9 Cummins, 9560 miles, Delo 400LE 5W-40

May 22, 2012
[Linked Image] My engine has a minor silicon and major copper problem. Silicon is from a damaged air filter that wasn't discovered for a couple weeks. The damage was at the base, and was leaking unfiltered air into the intake stream. Anyone want to take a guess as to the probable source of the copper?
I see that BS mentions a reseal, was copper anti-seize used or is there a new oil cooler installed? Just throwing ideas out there.