positive crank case pressure ? HELP

[LongBeach]

Can some one tell me why air blows out of the valve cover when I remove the oil filler cap ?I've replaced the pcv valve it's house one the y pipe and the two Cheack valves under the manifold and vacuum lines

[Davdraco1]

Your always going to have some positive crank pressure. It's just how much you have can be the issue. Are you burning they oil?

[LongBeach]

No major oil leak it seems like way too much air coming out 😕

[Davdraco1]

The pancake value opens under vacuum and sucks all the shit gasses out of the crankcase to reburn them. It's called a positive crankcase ventilation bc you will always have some pressure built up. I wouldn't worry too much about it.

[redline380]

Internal engine components seal well, but not perfectly. I'm sure it is just fine.

[LongBeach]

I shure this is the reason my valve cover is pissing out oil I've replaced the valve cover, pancake valve, it's housing and two Cheack Valves

[kwnk]

Your always going to have some positive crank pressure. It's just how much you have can be the issue. Are you burning they oil?

I've noticed when I open the cap after running the engine to operating temp I can see oil burning/smoke. Possibly the pcv or one of the checkvalves are not functioning correctly?

[Believer]

I shure this is the reason my valve cover is pissing out oil I've replaced the valve cover, pancake valve, it's housing and two Cheack Valves

Where exactly is it leaking oil ftom? You're certain it's the valve cover and not the cam tensioner gasket?

In your original post you said you replaced the pcv valve but above you state that the Pressure Relief Valve (pancake valve) was replaced. Have you replaced both or did you only replace the PRV?

Are we talking about a 1.8t?

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[LongBeach]

Yea 1.8t awm the pcv valve under the manifold inside of the T is that not also called the pancake valve ?

[LongBeach]

I also replaced both the valve cover and the tensionsioner gasket

[kruftindustries]

Did you use 5w40 or 0w40 oil?

[kruftindustries]

Torque spec for valve cover and VVT actuator are both 10 Nm (7ft lbs). I always use grey permatex in the corners of the valve cover seal before putting the gasket on and I've never had any issues.

[LongBeach]

@kruftindustries 1040 at the momento might just re do the valve cover