Quote:
Originally Posted by alfa11
Not so sure I agree with that. It has not been in the pressurized side of the oil system. Presumably screens and filters would catch this before entering high pressure.
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Then I would suggest looking at one that was taken apart after an IMS failure, debris is everywhere, even up in the cylinder heads. The OEM filter canister has a by-pass valve that sticks opens, often without provocation, and allows the metal to circulate everywhere. The oil pickup screen mesh is nowhere near fine enough to prevent this from happening. This is why the developers of the retrofit system have always required shops drop the sump on any engine before doing an IMS; if there is metal in sump, it is everywhere and will ultimately end up killing the engine.