my question was how OS did this (route the breather to intake manifold) .
1)did solve the problem with the oil drain at low throtle?(as the engines firing how it is posible to have increased suction on the niple to drain the oil)
2)the problem is there for all the surpass II engines but none of us noticed it
3)parhaps this problem you mention is very very very litle to bother the engine function?
i have an old surpass 91 and thinking to route the niple to intake.i had a small botle to cache the oil ( i route the breather to small botle and then vendilate this botle)
i flew the plane 5-6 days and didn t empty yet the botle . the botle was from a 35m film container.