combo 1.7cdti blowby

[bmouthboyo]

Sorry I should have elaborated.

I have a high mileage (217000) Z17DTH that seems to be getting a lot of oil in the turbo intake and turbo outlet to the throttle body.

I noted in this thread the OP posted a video and people diagnosed leaking injector seals from the sound, but to me it sounds like mine:

https://www.youtube.com/watch?v=vxVZRnFiyYU

I was wondering if I too have leaking injector seals and this is causing added pressure in the rocker cover and forcing oil into the intake?

[E-bmw]

bmouthboyo said:

I was wondering if I too have leaking injector seals and this is causing added pressure in the rocker cover and forcing oil into the intake?

You need to explain that one!

[stevieturbo]

bmouthboyo said:

Sorry I should have elaborated.

I have a high mileage (217000) Z17DTH that seems to be getting a lot of oil in the turbo intake and turbo outlet to the throttle body.

I noted in this thread the OP posted a video and people diagnosed leaking injector seals from the sound, but to me it sounds like mine:

https://www.youtube.com/watch?v=vxVZRnFiyYU

I was wondering if I too have leaking injector seals and this is causing added pressure in the rocker cover and forcing oil into the intake?

the crankcase breather setup on these will do that anyway.

But if you remove the oil filler cap and can hear ticking, then yes it is highly likely the injector seals are not how they should be, which would cause higher crankcase pressure which in turn would also make it more likely to push oil into the turbo inlet and through the system