ok I get that - altho I have heard that there is a risk of a 'runaway engine.' air intake can siphon oily gases and indeed oil from the sump and feed it with a vortex into the combustion chamber. a sort of feral turbo!
similarly, some people plumb the oil breather into the exhaust
- which then creates a vortex and siphons the oil from the sump. it could happen...
however with a correct siphon break i suppose the gasess would burn well - altho the blow by nature of them can include water
vapour from the cylinder head
which i suppose is not so great?
you have persuaded me mostly tho. thnx