Smoking Tailpipe AND o2

[GSTdude06]

I have a picture on my phone im trying to send to my email but this is whats wrong. I have ALOT of smoke coming out my tailpipe, now it looks white BUT on my o2 housing theres oil... looks like it came from n the exhaust but im not sure.

Would my rings or vavle seats be bad since there was oil on my o2 housing?

 

[GRAVEDIGGER]

Are you saying that you have oil on the outside or inside of you O2 sensor housing? It sounds like you're saying that the oil is on the outside. I just want to clear this up so maybe we can understand your problem a little better.

 

[rossb]

How is the oil on your O2 housing, like leaking out between the turbo & O2, or O2&DP(or just on it)? Also, get someone to help you and start your car up really quick and smell the smoke. If it is sickly sweet smelling you are burning coolant(which could be a number of problems). If not, it may be oil. I know most people will respond saying "OIL BURNS BLUE!!!!1oneelventy", but when my turbo went out it dumped a lot of oil into my O2/DP(some did seep out around the O2housing). And that oil burned an almost grayish white(it was fully synthetic 10w30). If I were you, I would just check for shaft play. Or better yet if you have a mechanic's stethoscope put that on the turbo and listen for any grinding/scraping. Good luck!

 

[GSTdude06]

I had a 14b on my car when I started it up after rebuild, everything was fine (as in no smoke) after about a day of driving it started smoking REAL BAD, I figured since it was a freshly rebuilt engine it shouldn't be internals. I bought a freshly rebuilt bullseye turbo no shaft play and installed it yesterday started it up and it still smokes. The oil is on the outside of the o2 housing but it looks like it might of come from the inside. The smoke burns pretty white not blue and im running just regular 10w 30 oil not synethic.

 

[GSTdude06]

bump.... any help?

 

[JusMX141]

Are there any kinks or obstructions with your oil drain pipe that would be causing oil to build up in the center housing of the turbo? If it can't drain properly, it will pass through the seals.

 

[GSTdude06]

There is a kink actually on the oil drain, i'll fix it asap and see what happens.

would that cause my turbo seals to go bad?

 

[JusMX141]

Not likely. Think of turbo oil seals as piston rings....oil passing through them shouldn't put their sealing ability in jeopardy once the problem is fixed- especially on the one that was freshly rebuilt.

 

[GSTdude06]

I fixed the kink but it still smoked, I took off the manifold/turbo/o2 and there was no sign of oil in the ports of the head nor in the manifold. The o2 housing side had oil on it along with oil on the outside of the o2 and the inside a little. The turbo was freshly rebuilt so I don't know.

 

[JusMX141]

Could be that the new turbine seal is stuck in the groove.

I've had that happen to a T25 that I recently rebuilt as well....the seal fit loosely in the groove upon installation (as it's supposed to). Once the turbine is pressed into the housing, however, the seal is forced down into the groove and becomes stuck.

By design, the turbine seal is supposed to stay in place while the turbine shaft groove turns inside it. Once it becomes stuck in the groove, the seal turns with the turbine and doesn't have enough tension to hold oil from passing between the seal and the turbo's center housing.

 

[DIS1KRAZY]

It sounds like a turbo prob. but I would pull out my spark plugs to check and see how they are burning, just in case your engine internally is ok.