Confirmed that the crankcase vents at the top of my EJ205 cylinder heads (both sides) and the oil filler pipe neck have a slight leak on my new engine. Marked it 4. and 31. on the diagram below.
Likely gaskets weren't replaced during the rebuild, as they were also leaking here before.
Gaskets are not expensive and i can change them myself, without having to go under the car.
Some disassembly is required to get at them though.
It's wet down the valve covers and looks like it gets to the exhaust manifold on the passenger site.
With the right gaskets and filler neck O-ring, how long should I expect for this repair and are there any special considerations?