Yes that is true but on another side I am not getting smoked at all times when turbo moving slowly. Sometimes it does smoke and sometimes not. For example, today I did not experience any smoke at all while yesterday it happened only twice. I can also leave the engine running at idle for as long as I want and it rarely happenes that it starts smoking. But sometimes it does induce when i press the gas pedal and raise the RPM's to 1500-2000 and runit it neutral for a few seconds like that and it is only sometimes. Yesterday I went to my service shop and we just could not make it to smoke in any of those ways although it did just a few hours before that.

 

^^ Maybe the oil burned off on the way to the shop?

 

I have checked intake piping, engine compression and there is no problems at all and no chance that either pistons or piston rings are damaged.

I haven't checked the turbo itself yet since I am waiting to get to the shop to be able to lift the car up and take the downpipe out and check the oil traces. But since the turbo was supposed to be brand new my wild guess is that turbo itself should also be ok.

After first 650 km I had to add additional 8 dcl of oil. After another 450 kilometers another 1,5 dcl of oil is missing. But guys at the tuning shop said that I will probably need to add some more oil soon as my engine was totally stripped and cleaned and new pistons were put in so they are expecting that oil consumption should settle down after first 1500 km (or 1000 miles) after the whole engine gets "soaked" with oil as it should.

Also I have found some small amount of oil in my BOV. Guessing that this just confirms that my oil line feed is producing to much pressure to the oil feed. Not sure about the size of the oil lines since all of lines needed were custom made at the local tuning shop and I just guessed that they will make correct sizes.

One of the suggestions that I got is that maybe my oil line is to long so oil pressure going to turbo is to high causing oil to enter exhaust pass the turbo seals.

Any suggestions to be added to this?

 

If uve got oil in ur BOV, wuldnt it be in ur intake piping somewhere then?

Where are the vacuum lines comming from to ur BOV. I've got mine off the brake booster, and ive herd that with too push psi it is possible to actually de-vacuum ur brake booster, which somehow culd get brake fliud in the vacuum line? I dunno if thats true, i havent seen it b4 on my car or any others...its prolly just a myth.

 

I would think so also, but we have checked just the upper part of the intake piping (after the BOV) as the down side is not easy to check without getting the car on the lifter and the whole engine and components were quite hot since my shop is like 30 km away. There were no oil signs in the upper intake part (intake pipe next to BBTB, BBTB and intake manifold). I have noticed oil in the BOV later on while checking some other parts. As for the vacuum line to the BOV it seems to be coming from the intake manifold as it shows in the photo (I wasn't assembling the turbo on engine by myself):


What I could find is that oil in the BOV indicates that the pressure at the Oil feed into turbo is too high causing the oil to get into compressor side pass the seals but not neccesarilly meaning that the seals are bad and that urbo needs to be rebuilt.

 

Hmm....by bov is an ssqv so its a bit different, but same concept. i also have a flange not the rubber like u have, but still....i dont get how oil would get there of all places. if u have it t'd off the IM, the only way i can think it would egt there is if ur IM is pushin oil through that line to ur bov, bu it would only be a miniscule amount, residue.

i dunno y ur feed like wuld get there either. if u had oil in ur BOV from oil seeping from the turbo, it wuld have to go all the way through all ur intercooler piping before it got there. plus u have a 90 degree bend that oil wuld have 2 go through to get to the bov, and ud almost need a FLOW of oil goin through all ur IC pipnig to get there...

im lost i dunno what to say

 

Well to be honest I am lost also. I was thinking exactly the same about how oil got there in the first place. it is not much oil to be honest just a residue or an oil mist. Anyway, I am still getting my share of white-bluish smoke and all of the engine related factors have been excluded (pistons, piston rings etc.) I will check the lower part of IC piping this week (and turbo itself although it is hard to believe that the turbo seals are gone bad since the turbo is new with less than 1000 miles on it)

 

ive heard that hitting the rev limiter a lot will help to produce a fine misty oil around ur TB....

maybe a oil catch tank? i dunno man.
i get a white smoke because my fuel system is all screwed up w a bad tps, stock injectors..u can smell the unburned gasoline tho. r u getting a check engine light at all?

i dunno man. im about outa suggestions.

 

No no check engine light at all. I am not hitting the rev limiter at all so this is also out of the question. For the moment I am sticking with to high oil pressure at the oil feed as my shop also suggested. I'll try to change that this week and let you know what happened.

 

If you did not tap the head for the oil feed for your turbo that is your problem. I'm not sure of the feed setup your using, but in your pictures there is no feed coming off the side of the head.