Hi INTJ
Im pretty sure you arent supposed to pull out the dipstick when the engine is going. Oil will come out if the engine is going. Instead pull the engine oil fill cap off when the engine is going. If there are smokey fumes coming out it is likely to be worn rings.
My old 3SGE had a rattle/knock at about 3000 RPM when not under load. We pulled it down and found out that the big end bearing were worn. THe knock sounded like it was in the head, but it was definately the big end bearings
Ty
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