Too much pressure in valve cover on turbo K11

[Michiel]

Hi,

Since I have build a T20 turbo on my 1.3 K11 there's too much pressure on the valve cover. There is oil comming out at the gasket of the valve cover.

I have found on some other sites that it may come from the PCV valve which is shut down by the turbo pressure.
On a N/A engine the engine sucks air and opens the valve, on a turbo engine the turbo blows air into the intake manifold and also the PCV valve...
Now I have while driving on boost, too much pressure in the valve cover.
How can I reduce the pressure or open the PCV valve?
Or can I connect something different?

I have already one of the crankcase vents connected to the air intake next to the air filter.

Actually I want to wait to buy a thicker head gasket, because I think it can be solved in another way?

Please let me know.

 

[Ed]

Your following the wrong direction im afraid. There is only ever one way that will cause too much crank case pressure and that is if the pistons/rings are worn/damaged. there are 3 breathers on a K11 head. the PCV of when the car is on light load, idle, and the others at the far end of the head which goes to the air box etc.

I would first of all recommend that you try re-sealing the gasket on the crank case. You will probably find all is well then. If not get a new seal. or further still use a light coating of silicone sealer. Do not start playing around with pcv valves or headgaskets which are unrelated.

 

[K11SS]

if you are looking for a thicker headgasket i have a 2mm aluminum plate which you may like to have ... well if i decide im breaking the car. you will need 2 head gaskets 1 top and 1 bottom to fit this. the previous owner had the car running 1 bar which i had turned down to 0.6 bar.

hope you can get this fixed mate also you got pics of your setup ?

stephen

 

[Michiel]

Here's a picture of the setup at this moment:

As I can see, all connections are connected properly, but I have my doubts about the line from the crankcase to the air intake (just below the filter).

 

[Ed]

You should REALLY consider an intercooler on this.

 

[the legend]

But what about this article then?
http://forums.evolutionm.net/archive/index.php/t-200793.html

You should REALLY consider an intercooler on this.

 

[Michiel]

Yes I know, I have the intercooler at home, I just need some time to place it