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Discussion Starter · #1 ·
So after doing a 200km triip at 120km the whole way, i come home to find out that im billowing tons of white smoke.

At idle when warmed up, white maybe bluish smoke comes out of my exhaust, when revving the smoke stays the same, but when driving, the smoke then becomes really bad.. i can see the blue in the smoke when driving but not at idle

I notice that on my intercooler pipes i am leaking a bit of oil as i think it is, i havn't had time to pull off my downpipe to check for oily residue, as it is really hard to do in my car. I don't drive the car hard at all, i've never heard my bov yet, since i have to calibrate it cause all i can hear is compressor surge for the one time i've boosted

i am running unrestricted, and my oil pressure gauge reads 50 on cold start ups, and ~25 ish at idle when warm.. and roughly ~40 or so when cruising

could it be that i blew my turbo because i ran unrestricted and to much oil pressure is blowing by the seals? Or could it be that oil is just billowing through the seals cause of to much oil pressure in general?

I had never had smoke before this trip, besides coming out of my pcv valves which are currently vented

i have cel for the front o2 sensor also.. I have to also check compression to see if my headgaskets aren't blown too


so my question is, the usual symptoms of a blown turbo are the usual white smoke? or are there more?

and what else should i check for that can cause my problems ?
 

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Discussion Starter · #3 ·
Well it looks like its white, but when i start driving its white with a blue tint, so im going to assume its oil burning

i also just did an oil change and im already on low oil
 

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could it be the turbo seals ? i know if ur burning coolant ur exhaust will usually have a sweet coolant smell to it. how much oil do u lose on a daily basis ?
 

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Discussion Starter · #5 ·
well i havnt really be driving at all until i get this to stop puffing down the road, but i lost from FULL to LOW in a 500km trip or so
 

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If its white smoke its usually oil. You can kinda smell it if its oil as well.

By you telling me that you have oil in your intercooler pipes, I am going to go ahead and 100% guarantee its oil blow by the seals in the turbo.


I have had problems with oil blow by ever since I turboed my car.

Basically I think you might have the same problem I had. You NEED vacuum to pull the fumes out of the valve covers. Mine was OK when it was vented, but as soon as I hooked it to the catch can I had oil blow by. Try hooking your PCV back up with a aftermarket check valve in there. Stay out of boost because when you are in boost the check valve will close and GUARANTEE you pressurize the crank case, and cause oil blow by.

That will just be a preliminary test to see if it solves your problem or not. Hell, for that test you dont even need a check valve just MAKE SURE TO STAY OUT OF BOOST!! :)
 

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bad seals on the turbo.

Ebay turbo?....
Far as I know you dont need vac on the vc's. Mine have been venting through the catch can for the longest time. My car doesnt smoke.

Check your drain line, and dont use anything over 3an for a feed line.
A turbo dieing after a long trip wouldnt be out of the question either
 

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I still think my CC has more restriction than yours does, because I cant vent it through the CC, I wish I could save me so many problems. :cry: At least I know its doing its job, The one tube is filled with oil residue and the other is perfectlly clear.
 

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Discussion Starter · #9 ·
well it didnt smoke before the trip through my exhaust as bad as it is now

i am unrestricted, one is in the mail coming to me now, i have both of the vc vents vented out, i am rarely ever in boost since ive turbo'd

its a garrett t3t40e 6otrim, i have a -4an feed into a 90degree npt into the turbo, which is still i think a -4an piece... my drain line is a hefty -10 an line into the highest point of my oil pan

i am leaking near my ac compressor which i think its coming from a coupler on my intercooler, and then im leaking i think from my rear exhaust header, and maybe on my compresser outlet into my piping

the turbo seemed to be perfectly fine, im going to assume i was at 40+ psi oil pressure for over 2 hours or so, and i heard that a maximum oil pressure most non bb turbo's can handle is like 35 , 40 for a short period of time... i know i want to try to get 20psi but im waiting on this restrictor from atp...

but my major concern is, is my turbo blown? or why am i smoking so much, my car drives perfectly fine, no missing or anything, but its just hectic driving with a hefty cloud of smoke following you around

my pcv valve still makes that mechanical sound when shaken, i am pretty damn sure i am burning oil, and lots of it, and i need to figure out from where

also there is a turbo rebuild place thats sorta near me, and they offer 150$ for a t3t4 turbo rebuild, and roughly 240$ for a ebay turbo rebuild with supposed garret parts... local shops around here send them out to other turbo shops in the gta, and are being charged 6-900 dollar for a t25 rebuild..

does anyone have any experience with Blastperformance ?
 

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I still think my CC has more restriction than yours does, because I cant vent it through the CC, I wish I could save me so many problems. :cry: At least I know its doing its job, The one tube is filled with oil residue and the other is perfectlly clear.
I have all 3 ports on the VCs T'd into each other, then T'd into the charcoal canister lines, and ran direct to the catch can.. the other end of the catch can has a hose dangling near my fuse box :shrug: no oil in can, or in any of the hoses.. I was going to set it up right, but I kinda figure who cares.. not like this engine will last any longer if I do..
 

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Maybe its a new motor thing :shrug: I guess it couldnt hurt to take apart the catch can and investigate a little bit. Ebay catch can=cant expect much.. Maybe there is something restricting in the fittings.
charcoal canister shouldnt have anything to do with it.. its basically a catch can venting fumes from the gas tank, and into the intake.
 

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Discussion Starter · #14 ·
Well , i just got my restrictor in, and it doesn't smoke as bad as it did before

but it is still smoking, just a tad, at idle and when driving, when i rev it stays the same no more excess smoke

what should i check next
 

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you have a straight fitting for the drain or a 90 degree?

I have had a 90 for a bit, and I also have a straight I have been needing to switch to.
 

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Discussion Starter · #16 ·
I have a straight -10an line that has a barbed end for a push lock -10 an line that comes from the turbo, and then it goes to a -10 an fitting into the top right corner ish of my oil pan, with a pretty decent slope

maybe i have to burn off all the oil thats in my exhaust and such?
 

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i had to kink my oil line for it to stop smoking.



we have around 60 psi of pressure at the oil feed line, even a retrictor will noly bring it down around 20 psi.


you need to ue a valve or somethingto lower it to around 15 - 20 psi of oil and it wont moke.



even ebay turbos.
 

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maybe i have to burn off all the oil thats in my exhaust and such?
The residual oil in the turbo, intake, and exhaust should burn off within a matter of a mile or 2. A while back I was smoking out the tail pipe, stopped in the middle of the road, and disconencted the PCV from the catch can lines. In less than a few blocks the excess smoke was burned off, and I had a clear 2 miles drive home from there.

i had to kink my oil line for it to stop smoking.

we have around 60 psi of pressure at the oil feed line, even a retrictor will noly bring it down around 20 psi.

you need to ue a valve or somethingto lower it to around 15 - 20 psi of oil and it wont moke.

even ebay turbos.
A kinked oil feed is the same as a restrictor. The restrictor I have on mine is like 1/16 - 3/32 pinhole. You can drill it out if you want. If your adding a pressure regulator in your feed line, I think thats a little overboard, it sounds like his problems are elsewhere pressurizing the crank case.
 

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welll right now i am eating through oil like it nothing and its killing my wallet it seems like its leaking on the pulley side of the car i have a 2.5 l probe 1995 and it got the ebay turbo of course...lol but i need help to find out where its leaking ive replaced the oil pan gasket, both valve cover gaskets and its still leaking.... i also have smoke comeing out my exhaust i havent done anything with the pcv valve bs so is there something i can do like u did stealth to stop the smoking? please help
 
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