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Oil Coming Out Of Intercooler And Bov

barnoon

By barnoon,
in Engines & Forced Induction

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barnoon Experienced

barnoon

Posted
Posted

Hi guys, today when I was just having a general look in my engine bay I noticed that one of the rubber hoses coming off my bleed valve was melted to the turbo and had a massive hole in it, the car seemed to drive fine on the way to work this morning and was boosting and holding boost fine so im not sure what this melted hose could of done but I replaced it anyway.

Now anyway as I looked around the engine bay a bit more I noticed their was oil in the vent bits of the BOV (aftermarket Apex'i bov) I then noticed that their was a lot of oil leaking out of one of the intercooler pipes at the bottom of the cooler, this oil is MUCH blacker then the oil thats on the dipstick. I wiped all this oil off and took the car for a short drive and everything seemed fine it wasnt blowing any smoke at all or anything but when I got the car back I had another look and their was more oil leaking out of the bottom intercooler pipe joint bit.

Anyone have any idea what this could be from?

Car is a 1993 RB20DET R32 GTST

Power FC

Bleed Valve, 14psi

GTR Front Mount

Turbo Back Exhaust

Thanks guys!

paulr33 Grand Master

paulr33

Posted
Posted

Turbo seal is the likely culprit. Clean away all the oil you can see and check it in a few days. If it comes back its most likely time to get the turbo seal fixed/replaced.

It could be a once off and may not occur again. If it does come back in a few days you could also turn the boost down a little bit to take some stress off the turbine shaft (rotation speed)

azzr32 Community Regular

azzr32

Posted
Posted

do you have a oil catch can? it could be a bit of blow by

if the pipes that come out of your rocker covers go back into the pipe that runs off the compressor housing and your getting blow by,

that would be the reason for the oil in the cooler and it would be in the turbo and most likely in your throttle body and plenum if you have oil in your bov!

paulr33 Grand Master

paulr33

Posted
Posted

blow by is caused by seals leaking or shagged internals.

having a catch can will capture the oil thats getting in the intake but the original problem is still present, ie: shagged internals or seals.

you are much better off fixing the source of the problem, as apposed to fitting a catch can and just catching the excess oil blow by. if you have oil in the intake piping, something is wrong, is about to fail or is showing signs of fatigue, utlimately it will fail or go bang if it continues

azzr32 Community Regular

azzr32

Posted
Posted
blow by is caused by seals leaking or shagged internals.

having a catch can will capture the oil thats getting in the intake but the original problem is still present, ie: shagged internals or seals.

you are much better off fixing the source of the problem, as apposed to fitting a catch can and just catching the excess oil blow by. if you have oil in the intake piping, something is wrong, is about to fail or is showing signs of fatigue, utlimately it will fail or go bang if it continues

what he said. >_<

you do get a bit of oil up there sometimes after maybe a hard track day or drags, but if your taking it easy and your getting alot of oil you have some problems

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