CM871 Oil sample help

[Aussie Steve]

Your high iron count is not from cams or rockers as there are no elevated nickel levels which indicate hard facing failing. (nickel count should never go above 1 in a healthy engine) Aluminum and silicon together indicate dirt ingress into the intake side although your levels are not abnormal, but you require more samples to establish a trend. Silicon is still elevated but that may be from recent work on the engine. If the sump has been off and it looks ok from the bottom the next place can only be timing gears. Might pay to have a look in there. I had a 3054 Cat engine with iron counts that high but also elevated lead, copper, nickel, aluminum, silicon + others and she had been dusted (bought sight unseen out of an auction yard), Dirt ingress wears everything. Not the case for you.
New engine and new intake pipework solved the problem.
Hopefully I've managed to attach an oil sample to this reply
P.S. - Engines will still appear to run fine to some degree as they self destruct.
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