Hi Tycho,

nice post with good outcome ... lesson learned again ... thanks for the update

threads like this deserve to be under some kind of sub forum named like ...
"How NOT to do" ...

I believe it would be a huge sub forum, because human stupidity is endless ...

Regarding oil pipe size from oil separator to oil pump inlet I believe all should be Ok if pipe is reduced
just in front of inlet of oil pump ...

I saw cavitation on Stal S57 oil pump due to dirty of main oil filter .... main oil filter was huge (and quite expensive to be replaced but rather cleaned ... oil filter should be replaced yearly - stated in service manual ... but that happens maybe once in three years) and oil pressure drop was very small and without oil pressure cut out, but enough to provoke cavitation within oil pump housing during long run ... unfortunately, we discovered the reason much later after many damaged oil pumps ... also complete design of piping was by package manufacturer, but without calculation of a clogged oil filter just a little ...


Best regards, Josip