Oil in carb through valve cover vent

[CTD]

Hi everyone,
I noticed that there is a tiny amount of oil coming into the front carb through the valve cover vent that is connected to the air filter housing. Does anyone have an idea what can cause this?
Car is running fine.

 

[deQuincey]

Hi everyone,
I noticed that there is a tiny amount of oil coming into the front carb through the valve cover vent that is connected to the air filter housing. Does anyone have an idea what can cause this?
Car is running fine.

Wow, that is amazing...

It is exactly intended that way, yes
Good that you noticed it...

 

[CTD]

Wow, that is amazing...

It is exactly intended that way, yes
Good that you noticed it...

Always knew I was genious!

 

[Stevehose]

It's accumulated oil vapor blow-by, small amount ok, large amount not ok.