I noticed a few puffs of blue smoke a while back as well as oil at the seam of the exhaust tubing. I attributed it to bad turbo oil seals and proceeded to rebuild the turbo. Changed oil at the same time from T6 to T5, 15-40. The blue smoke is quite a bit less, but still shows at idle and not all the time.

First start up of the day, slight haze. I leave the house when the oil temp gets above 100 and drive easy until it gets to 160. I will get a pretty good train of smoke until the oil temp gets above 180 at every stop while I'm idling. When the oil temp gets above 180, it will only smoke every 3rd or 4th stop at idle. If I hold the brake and get the RPM's over 1,000, the smoke dramatically decreases, if not completely dissipates.

I do have the CCV rerouted and am wondering if it is affecting the operation of the engine.

Any thoughts?

 

Any excessive blow by? Im on my phone so I cant see your sig but do you still have your stock exhaust?

 

The CCV is open vented and I can see vapors coming out of it, seems to be the same amount as always. I haven't pulled the filler cap and set it on the neck to see if it blows off in a while.

4" MBRP turbo back with muffler.

 

Have you run it alot after turbo rebuild? If not there might be some oil in the muffler.

 

I've got 1500 miles on it since the rebuild.

 

Check for wetness in the exhaust tip. If you can remove the muffler and check to see if you can see or drain any oil out.

 

Have you looked in the intercooler for residual oil. The seal may have gone and let oil build up in there. You fixed the turbo but didn't get rid of the reserve supply?

 

The exhaust tip is dry, but dark as far back as I could see.

 

Would that residual oil still be evident after almost 2K miles of operation?

 

I would say yes. Liquid does not flow well on airflow bends and it would have to be blown out of the intercooler by going up. Would take no time to pull the cool side CAC and look. It doesn't take much to smoke and various threads report after a seal on the turbo, oil in the intercooler.