oil blow back through turbo

G day Rhino
I have a 2003 Navara 3.0 TD ,, I have a problem similar, but mine is only a weep.

I took it to Nissan Dealership ant they told , me its normal for them to weep a little.
I fixed the weep problem by removing the " schite " turbo hose clamp, and replacing it with a new " real Stainless " clamp ,, no more weeps ... but I religiously check my oil..

But a Mate ( mechanic ) tells me that there is a couple of gaskets on the turbo that you can change which " may " stop the unsitely leaks,, I'm not sure..I'm not a mechanic.

You see, you must look at the nature of whats going on there ,, Just above the turbo is the positive crank case ventilation, return hose, its probably that that is causing the problem, as it will dump oil into the turbo ..
Pls check the PCV valve ,,,If they have one ,,,,It could be called the scavanger valve, but again I am no mechanic,,,I not 100% sure

You can ring Nissan, and find out if the " Scavanger Valve " has been changed,
and thd dip stick been " recalibrated ",,, I think that that one was on Nissan, it was part of their " recall " , And I use tha term loosly ,,...

I would be interested in finding out how much oil you use,, you may have the dredded Nissan series 1 motor problem ,,
Good Luck
Bucky

Bucky I too have an 03 Nav and yep the dealer told me exactly the same thing when I queried the oil on the underside of the turbo. HAve you had an other issues with your NAv?

Yep, same here, it is normal for a little oil to pass through the turbo but should not make a noticeable effect on oil consumption. As sugested above change the hose clamps to a decent type and that should fix any weepage from the hoses. If you have a drop in oil level and or blue smoke from the exhaust I would sugest a seal in the turbo is leaking and this would mean a turbo overhaul.
Most people theese days dont cool the turbo before they shut the engine down after a long run ( some dealers tell you you dont have to) but if you look in the handbook under section 4-4 turbocharger it tells you in heavy print to let the engine idle for a few min befor shutting down. The turbo gets very hot when towing or during a long run and if you shut the engine down straight away the oil in the turbo can boil an cook the seals..........Nav.

Correct Nav8, one of the first things I looked for in the manual after purchasing my Nav...I always idle down with the time dependant upon the nature of the prior drive (if that makes any sense...)

GDay Rhino
There is not a ZD30 in a patrol or navara that comes through my workshop that doesn't have oil in the intake pipes/intercooler.
It is from the PCV but if it is excessive it could be the turbo seal gone. If this was gone it would be belching smoke.
Not sure if this helps but try my site at
www.lonards-automotives.com.au
Different car but same engine. Different turbo though.
Cheers
120scruiser

I directed a query to my local Nissan Service Manager 2day about the same issue. He informed me that due to the thinner oil used as opposed to the old Nissan oil which had a higher viscosity/resistance to flow it sprays out a thin film of oil which is visible on both of the rubber hoses after the turbo. I went on to inform him of the slight use/consumption of oil and he went on to inform me that it was quiet ok and within limits/specifications. He assured me that he has only had to replace the engine in one Navara in the 5 years he had been working at the dealership. He also told me to tighten the hose clamps and keep an eye on the oil level. I hope this helps and is of some use rhino.
Regards Durt'e Smitty.