some oil coming from the BOV..

[Lucas180]

Went to the track yesterday, and today on car clean up i noticed a bit of grey looking oil coming from the BOV..some spray on the hood too underneath it looks like grey oil as well.

here is the thing, i have heard an exhaust leak from the car for over a month now, tried to fix it sevral times but cant find the leack at all. when the car is cold and under load i hear it. but after a bit of driving and the car is at running temp the leak sound is completely gone.


i did the manifold gaskets and exhaust turbo gaskets last summer,

i feel boost through the gears on the street but for some reason third gear did not feel that powerful on track yesterday drifting. espically when the car was hot (around 120 degrees C)


its a t28 S14 turbo on a red top SR20det.
anyone have some ideas of what is going on it would be apericated!!

Thank you!

[Sileighty_85]

Turbo is blown

Check for shaft play on the compressor.

The grey oil sounds like the compressor blades are making contact with the housing

120*C!! (248*F) thats like death!!

[jr_ss]

Oil seal on the compressor side of the turbo is failing/bad. Look for a new turbo.

[Grenade180sx]

Turbo is blown

Check for shaft play on the compressor.

The grey oil sounds like the compressor blades are making contact with the housing

120*C!! (248*F) thats like death!!

yeah holy crap! i wont go anywher over 100*c

[Jeezy240]

yeah no joke. 120 is pretty darn hot.

[Lucas180]

Great..that sucks..120 super hot..hmm anyone i have asked said it was ok being that hot..

[Grenade180sx]

just remember its aluminum. id be careful of warping.

[Sileighty_85]

Great..that sucks..120 super hot..hmm anyone i have asked said it was ok being that hot..


Dude the Stock OEM thermostat opens at like 76.5*C (169.7*F)your engine is running at 46.5*C higher (thats 115.7*F higher)'

Before i upgraded my whole cooling system i think mine ran around 80-85*C

Im suprised that engine is still running.

[Lucas180]

Maybe i am readingmy gauge wrong.. on normal driving oil temp is around 80 on highway its up around 100..always has been like this ..my cars not here now but when it comes back ill have to check this gauge out..


its always ran righr and never overheated before..:S

[xsublimefrekx]

i think everyone was thinking about coolant temp and not oil temp because you didnt sayi anything about oil temp

[Sileighty_85]

i think everyone was thinking about coolant temp and not oil temp because you didnt sayi anything about oil temp

hahaha yeah, thats a differnt story now lol

[Lucas180]

sorry guys, long day at the track when i wrote this my mistake..OIL temp at 120 C coolant never gets that hot, actally never raises on the stock gagues even.. this being said i was starting to really get confused lol

but i still think something is wrong here..it has not spit oil since the track so far....

looking at GT2871r now..if it is gone i guess... but ide like to know for sure..ill have to test some more.

[fliprayzin240sx]

120 for oil temp is BAAAAAD juju...oil starts breaking down around there to 130.

[Lucas180]

Yeah i usually dont drive much longer after i get to 120 i let it cool down.

[let5l1de]

pm me if you are interested in rebuilding your turbo.

~mario

[Lucas180]

Well i took a look and really nothing was wrong with it as far as i can see...and no more oil is coming out of the bov after i cleaned it up..

i did a compression test too its all good because people were telling me it could ruin the engine..

could it have been heat sync? or something of that sorts..?

there is an exhaust leak sound coming from the engine though ONLY when its cold..when the cars hot there no leak..so weird.. so i think this is suspicious to my problem?

and i thought you cannot rebuild stock ball bearing turbos?

[let5l1de]

Exhaust leaks kill turbo performance

Hi temps kill turbo seals and bearings that seal the oil within the cartridge.

Aluminum slide ( the part that moves in and out to release pressure) BOVs also wear and produce a grey color oil discharge...

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Garrett provides the option to exchange a failed or used CHRA for credit on a new CHRA.

Although the bearing cartridge is replaced as a unit, rebuilding is possible by a reputable turbo specialist such a Turbo Performance. Seals, clips, springs, bearings and balancing.