Thread: Boost into the crankcase?

Started my car today and found a HUGE puddle of oil under my car. I did leave the PCV valve hooked into the intake manifold and do have the valvecover vent plumbed into the intake for the turbo. Blew out right behind the axle where the upper pan meets the block. Any ideas?

Picture for the lulz:

not crankcase pressure and you didnt even hit boost...check oil feed if its a de+T

you do not want your vent for the v/c going to anywhere the hits boost it needs to run to a place that sees vac only or a catch can, I wouldn't want my turbo sucking in all that nasty oily stuff so I'd just run it to a catch can

the pcv valve unless broken will not allow pressure to enter only leave, it's a one way valve

with that big of a leak something that has oil pressure is leaking, when it leaks because of boost it usually just leaves a fine mist

I revved it a bit, maybe hit 4k before I saw the puddle.



Took off the lower and upper pans, no sign of a breech anywhere, after dinner I'll check out the oil feed lines. Now thinking about it, it is the oil feed, because there was a TON of oil coming out and its right at that spot.

make sure you put oil back in...