205 turbo breather problem.

[lahondal 17]

Hi all.

 

We are almost finishing a 205 turbo project with a xu10j2te, and in the firsts runs we noticed that the oil breather is spiting oil all over the place when we drive hard.

 

The breather system is all stock except the pipe which runs from oil filler to the inlet now go to a catch can, and the big lower hose, that broke down in the past and have an connector with a slighty smaller diameter pipe (3 or 4mm smaller IIRC)

 

Can this union make the oil not drain properly from the oil filler and spitting oil trought the >inlet hose?

 

I have little fear as we had this problem in the past with a 1.9gti engine and was almost impossible to solve.

 

Thanks!

[wicked 103 3 Cars]

Do you have vacuum on the other outlet of the catch can?

Is the bottom end in good shape; meaning no excessive blow by on the rings?

 

On my tct I replaced the rocker cover with a 1.9 gti one with the extra breather, connected with a pcv valve to the inlet.

 

The extra breather on the right hand side.

Edited May 2, 2018 by wicked

[lahondal 17]

Engine is recently rebuilded completely, and at idle it doesnt blow throught filler cap anything.

 

The catch can is a simple recipient with holes vented to atmosphere, no vacuum there.

 

should this pipe go to the catch can and then down stream the manifold with a some sort of no return valve?

[wicked 103 3 Cars]

No, that won't help you. That will only work off-boost and then you don't have a problem. 

It should be between air filter and turbo inlet; that's were it used to be.

It will create some under pressure in the catch can, increasing the airflow through the breather. Won't be a massive difference, but maybe just enough.

Note the a restrictive air filter or slight taper toward the air filter will make it work better @ high boost; more under pressure.

[lahondal 17]

Will try that.

 

Does this system make smoke the engine? As all the oil will be sucked in and burned?