blue smoke

I’m looking to replace the PCV on my astra mk5 1.4l 16v and i’m not entirely sure where it is? I just had a bellow of blue smoke come out of the back of my car shortly but it’s stopped. Also I’ve recently replaced a blown oil breather tube which probably means that there might be a buildup of...

Hello everyone , i have astra h 1.9 cdti 74kw , but burning oil for 500 km consumes 1liter of oil , i repair turbo and replace new valve seals but again consumes oil , i go to mechanic , but mechanic says me if change piston rings but not succesfully because after 3 months combustion chamber...

Any advice you guys can offer with this would be much appreciated. I drive a Meriva 1.6 8v. I noticed the car was leaking a fair bit of oil so took it the garage to get checked out. My head gasket was leaking oil. The oil was leaking OUT onto the outside of the engine and NOT leaking back...