I've attempted to circumvent the oil vapour return from the oil breather which usually returns to the inlet manifold, creating a negative pressure to the sump. Unfortunately, the small air filter that I placed on the oil breather on my 504 now spews out oil. I was under the impression that it was just vapour and the gauze would see it return back to the sump.
I've considered the possibility that I'd overfilled the sump and that would be a possible reason for the excessive oil coming out. However, having taken oil out, the problem still remains.
What should I do? I don't particularly want all this oil ending up in my carbs either...