16v Oil venturi in Cylinder Head

[Peter Wood]

Good Morning,

In the process of re-assembling the head and noticed that I don't have an oil venturi plug!  (Not sure if I lost it or it wasn't there)   I've found a place to buy unless anyone has a quick and easy solution?

Is the venturi supposed to be flush with the head surface, or protrude a little through the gasket or... what?

Many thanks for help.