Oil Blow Back into my Turbo..........

**Lukezen27** · 13-04-2008 11:51 AM

Hey Guys

There's a small amount of oil that's blown back into my intake and turbo.

How do I stop this?

Hannys said there's trick by letting the PCV valve breath but as they don't do turbo's I'm not sure..

Thanks

Luke

**beeza** · 13-04-2008 01:17 PM

An oil catch can would be the go wouldn't it? I've got one in my N/A car,not 100% on Turbo's though...A pice best descibes how to do it.Want one Luke?

**Lukezen27** · 13-04-2008 01:21 PM

Originally Posted by beeza

An oil catch can would be the go wouldn't it? I've got one in my N/A car,not 100% on Turbo's though...A pice best descibes how to do it.Want one Luke?

At what point do you add a the catch can?

between Intake piping and the rocker cover?

I thought that's where for but Hannys said no but they must be wrong yeah?

You selling one bro?

**beeza** · 13-04-2008 01:35 PM

I cleaned my TB and IM and saw all the crap in there and decided to put one in.Dosen't make a difference on my not powerful engine but on more powerful engines I would imagine it would keep a lot of crap out of there.
I was selling mine but I put it back in.I bought it at autobarn $60.
It's the most confusing thing about a car is the PCV valve...
In the pic U can see from the catch can a line goes to the IM and the other to the PCV valve which is at the end of that hose (running through the hole in the IM.
Hope that's clear.

**JasonGilholme** · 13-04-2008 01:36 PM

Hanny's is correct. It doesn't go between the intake arm and rocker cover.

It goes between the PCV Valve and the Intake Manifold. Theres plenty of threads discussion the position of it.

As for oil in your intake/turbo have you looking into how much oil you are actually sending to your turbo. You might have too much going in and you could be over oiling it. This will cause oil to push past the seals.

I'd replace the PCV Valve, install a catch can and clean your intake piping and see how you go.

If you still get oil build up/burning then you might need to look at your oil lines to your turbo (could be too big / could need a restrictor). Or, worst case scenario, you might need to look at the seals in your turbo.

**Lukezen27** · 13-04-2008 01:45 PM

Originally Posted by JasonGilholme

Hanny's is correct. It doesn't go between the intake arm and rocker cover.

It goes between the PCV Valve and the Intake Manifold. Theres plenty of threads discussion the position of it.

As for oil in your intake/turbo have you looking into how much oil you are actually sending to your turbo. You might have too much going in and you could be over oiling it. This will cause oil to push past the seals.

I'd replace the PCV Valve, install a catch can and clean your intake piping and see how you go.

If you still get oil build up/burning then you might need to look at your oil lines to your turbo (could be too big / could need a restrictor). Or, worst case scenario, you might need to look at the seals in your turbo.

Hey JasonGilholme

I can't see how the PCV or a catch can will do anything as the intake/turbo on a boosted setup is no where near the TB?

Anyway the oil lines are the stock ones that come with the GReddy kit and should all be matched for this turbo I'd think..

It can only be oil pushed back throw the rocker cover hose to intake...

Can't I add a filter or something between that hose?

Originally Posted by beeza

I cleaned my TB and IM and saw all the crap in there and decided to put one in.Dosen't make a difference on my not powerful engine but on more powerful engines I would imagine it would keep a lot of crap out of there.
I was selling mine but I put it back in.I bought it at autobarn $60.
It's the most confusing thing about a car is the PCV valve...
In the pic U can see from the catch can a line goes to the IM and the other to the PCV valve which is at the end of that hose (running through the hole in the IM.
Hope that's clear.

What's the little filter doing in the rocker cover hose point?

**JasonGilholme** · 13-04-2008 02:40 PM

The air doesn't go backwards towards the intake arm. It goes into the engine from the intake

If you think that the oil is coming from there then you could block up the hole in your intake and put a breather on the valve cover instead. Its probably better not pushing pressured air through the crankcase. If you put a breather on there it will keep it at ambient pressure.

Are you getting oil on the turbo side of your intercooler too?? If you're getting it there then its probably coming from your turbo.

**Lukezen27** · 13-04-2008 02:47 PM

Originally Posted by JasonGilholme

The air doesn't go backwards towards the intake arm. It goes into the engine from the intake

If you think that the oil is coming from there then you could block up the hole in your intake and put a breather on the valve cover instead. Its probably better not pushing pressured air through the crankcase. If you put a breather on there it will keep it at ambient pressure.

Are you getting oil on the turbo side of your intercooler too?? If you're getting it there then its probably coming from your turbo.

Not that I know of but its hard to check.. its not much oil so I doubt it...

You ya don't need the intake to rocker cover hose connected then and just add a breather works fine?

How did you block the intake piping hole?

Turbo's done like only 10,000 kms max and was brand new

**beeza** · 13-04-2008 02:50 PM

It's an old pic...I've since removed the small air filter and put the hose back from the valve cover to the intake arm because I was told by 'Transzex/bone' off d-series (you know who I mean Luke) to 're-connect the hose if you want your engine to last' and he knows his stuff alright.

**Lukezen27** · 13-04-2008 02:53 PM

Originally Posted by beeza

It's an old pic...I've since removed the small air filter and put the hose back from the valve cover to the intake arm because I was told by 'Transzex/bone' off d-series (you know who I mean Luke) to 're-connect the hose if you want your engine to last' and he knows his stuff alright.

Not sure who you mean but what's the reason behind that?