I have seen engines get pulled and disassembled for pieces of "stuff" found in the
oil pan that were never traced back to a broken piece of something in the engine itself. OTOH, there are a lot engines out there still running strong where the owner found something in the
oil pan and decided
"well WTF it's been in there this long, what harm can it do?" If your Blackstone report comes back with an abundance of wear particles then it's hard not to pull the engine and take it apart. But if your
oil comes back fine and you can't come up with a clever way to inspect all the interior circlips without pulling the engine and taking it apart then you're faced with a tough decision.
