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Oil in turbo air intake hose

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Jimbo:
Hoovered all the cr4p out of the 'external' side of my airfilter box yesterday, and whilst poking around noticed quite a lot of oil in the air intake hose that goes between the airfilter casing and the turbo - on the turbo side of the MAF sensor.............is this right ?

As the air is heading towards the turbo, the oil can't be coming from the turbo - and the vanes of the turbo look quite clean. This hose does have a smaller hose that leads off to the top of the engine - crankcase breather ? - and what looks like a filter is built into the joint between the small hose and the bigger turbo hose. Is there a filter in there ?, does it need cleaning/replacing ?

Should I have oil in the hose ?

It's the Disco BTW !

Thanks

waveydavey:
The small hose is the crankcase breather; it vets to the induction system so that there is no oil discharged from it.

I think the filter is just a brillo pad; it could be cleaned in a solvent of some sort if you want to but make sure you get it off. This is the pipe that can destroy engines if a head gasget blows and the engine runs away on the egine oil.

fudge:

--- Quote from: "waveydavey" ---The small hose is the crankcase breather; it vets to the induction system so that there is no oil discharged from it.

I think the filter is just a brillo pad; it could be cleaned in a solvent of some sort if you want to but make sure you get it off. This is the pipe that can destroy engines if a head gasget blows and the engine runs away on the egine oil.
--- End quote ---


Saw a Pug 405 do that....... reved its nuts off then BANG if its not your car its quite ammusing seeing people run from the garage when it happens!

cardiff_gareth:

--- Quote from: "waveydavey" --- This is the pipe that can destroy engines if a head gasget blows and the engine runs away on the egine oil.
--- End quote ---


Eh - why, what happens and how does it destroy the engine :?:

Not being awkward, just curious 8)

thermidorthelobster:
Head gasket goes, exhaust gases pressurise the crank case, oil in the crank case vents through the breather, into the air intake;  engine starts burning oil from the air intake, which you can't shut off;  engine revs go through the roof and bang.

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