My car has a vented oil cap that looks like this,
Shouldn't that be enough to vent the crankcase? I'll check and see if it's gummed up...could be...

[Linked Image]

[Linked Image]


1965 Plus 4
2008 997 Turbo Cab
1981 Alfa Spider
1954 Austin Healey 100 (SOLD)
2013 M3W (SOLD)