View Full Version : Oil on engine after hard drifting????
nisans13turbo
08-25-2009, 12:12 AM
Well I've noticed oil on my IM and around my injectors after a 4 hour drift event. I thought it was from my oil cap but turns out its not and no other sign of any oil leakage. Only think I can think is the vc seal because I heard sr tend to have that problem where oil leaks a little on the vc towards the firewall. Anyhow after letting the car sit for a whole night I've noticed my oil is kinda high on my dipstick, not sure if that could of caused to much pressure where oil leaked through my vc seal or someone can give me a hand.
Thanks
Nissan_Power
08-25-2009, 06:50 AM
oil level rising usually means coolant is mixing, correct me if i'm wrong ! Was the oil a different color or smelled weird ?
s14unimog
08-25-2009, 09:15 AM
Are you sure the level wasn't high already? Check to make sure the PCV valve connection isn't damaged and leaking...Do you have any pictures? I doubt the oil would spray out from under the VC gasket. If the level is high, drain some anyways, but take advantage of that and inspect the oil. Are you getting blow by, does it smell like fuel? Also check for coolant, like the one above mentioned.
nisans13turbo
08-25-2009, 11:34 AM
oil level rising usually means coolant is mixing, correct me if i'm wrong ! Was the oil a different color or smelled weird ?
Oil didnt look mix with anything, it looked like oil.
Are you sure the level wasn't high already? Check to make sure the PCV valve connection isn't damaged and leaking...Do you have any pictures? I doubt the oil would spray out from under the VC gasket. If the level is high, drain some anyways, but take advantage of that and inspect the oil. Are you getting blow by, does it smell like fuel? Also check for coolant, like the one above mentioned.
Kinda noob at this but pcv, are you talking about the T by my vc?
Anyway this is how mine is hooked up except without the black tank, a hose just goes straight down.
http://driftjapan.com/blog/wp-content/uploads/2007/10/nissan-sr20det-engine-drift-japan-blog-small.jpg
s14unimog
08-25-2009, 01:15 PM
the PCV valve is the barbed fitting at the rear, USDM passenger side of the VC. it pulls air from the crank case when the intake manifold is under vacuum; sometimes you'll see oil pulled through there and into your intake manifold. If the line was torn it could possibly leak. Some people actually install catch cans for those too.
So this picture is not YOUR engine bay exactly? I don't condone the use of open air breathers for the VC. If you look at the factory orientation of the crank ventilation for the SR20, you can properly outline the path for ventilation. If you had excessive blow by, you could pressurize oil out the "T" fitting and through the open air breather...That would be my guess.
nisans13turbo
08-25-2009, 01:50 PM
Some say its parallel to the alternator? I havent checked it my self but sounds complicated. What would be the best way to remove the pcv also you got any picture or diagram how to vent the pcv?
If thats where the pcv is located than that might explain why there was oil on my IM and injectors. My pcv was never replaced since I swap the sr 3yrs ago.
4x4le
08-26-2009, 08:32 PM
Dont run a stupid filter on your valve cover. Your asking from problems. Dont remove the pcv either. Sealing the engine up is going to cause more leaks. If your asking how to take it off to replace it then all you need is a wrench....... Its on the back of your valve cover with a line going into your intake mani.
Get rid of the stupid filter and run a hose to a catch can and a hose off your catch can to your turbo inlet pipe.
s14unimog
08-27-2009, 08:08 AM
^ exactly what Brandon said...oh wait I'm Brandon...ok well exactly what both Brandon's told you...
nisans13turbo
08-29-2009, 10:15 AM
Dont run a stupid filter on your valve cover. Your asking from problems. Dont remove the pcv either. Sealing the engine up is going to cause more leaks. If your asking how to take it off to replace it then all you need is a wrench....... Its on the back of your valve cover with a line going into your intake mani.
Get rid of the stupid filter and run a hose to a catch can and a hose off your catch can to your turbo inlet pipe.
Ok, I've seen people run the hose from the oil cc before the maf and after the maf, what side would be better?
4x4le
08-29-2009, 10:26 AM
Run it after the maf, and far away from the maf as possible too. The air it will pull through (during boost) there is already metered, and the air it will pull through there during idle needs to be metered. Also if the air is dirty (some possible oil) it will dirty up the maf which is also why I recommend putting the hose fitting as close to the turbo and as far away from the maf as possible, any surge can make oil go back up the turbo inliet pipe and dirty up your maf.
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