I lil history, I bought my 2011 MCS w/78k miles used in Dec, after about a 1k miles I had smoke and whistling while in a prolonged idle. Dealer replaced the valve cover(or so they said, I dont trust dealers).


For the passed month or so I've had blue smoke coming for the tail pipe if Im sitting in traffic, when I start up after 8 hours at work, but not typically on cold start up in the morning.

400 miles since my last oil change the oil level is roughly 2mm from the top of the full mark on the dipstick.

I checked on the spots on the engine today.

At the red circles I had oil in the hose
the yellow circle including the turbo in the area showed nothing to little in the hose itself. I tried to wiggle the shaft in the turbo and I didnt notice any play up/down, I couldnt get a grip for in/out.

Thoughts and suggestions would be great. Currently Im thinking that I could have oil in the intercooler and it settles well over night, but after use it works it way up to the TB.

I saw posts about cleaning the IC, I was wondering about drilling a drain hole in a low spot of the IC and draining. Would that be possible?

If it's not what Im thinking. Where should I look?

 

An Oil Catch Can will help keep oil out of the turbo output, but it's not a cure, only a patch. Maybe do a compression /leak-down test to find out why there's so much oil in the PCV line.

I too have thought about adding a drain fitting to the FMIC. Probably a bad idea, 'cause it's just another patch, not a cure.

 

(in many cases) there is SIGNIFICANT oil in the intercooler, it means the seals on the turbo are bad...means a new turbo.
And no, I would not drill a hole in the ic to make a drain.....trying to seal it up, and not have future cracks there would be a nightmare.

 

Yeah if its the turbo a OCC wont do a thing.
I found a picture of the IC and noticed the plastic ends, so no drilling a drain in it thats for sure.

Ill be removing the O2 and sticking a borescope in there hopefully theres no oil. Picking up a leakdown tester and will be smoke testing the VC.

If it's not too hot this weekend I might drop the IC and clean her out.

 

Cars with excessive blowby will also have oil built up in the intake tract, which only takes a couple years of mismanaged ownership prior to you buying a car to put you in the shop for $8000+..

Don't drill holes in the IC, the plastic is already brittle enough, and the core is beyond paper thin, you'll play hell trying to keep the drain from being blown out after a while.

I would find a qualified indy shop to do the diagnostic if there is enough oil to be concerning, the dealers aren't really stacked to diagnose that big of a problem without unlimited access to your wallet.

 

So, I got to my brothers shop today. I removed the O2 and used his bore scope, I saw a nicely whitened cat with no stains or signs of oil landing on it. The rear of the turbo looked good too.

I ran his smoke tester through the out port of the valve cover and saw no smoke escaping from the PCV.

My diagnoses stays with a good amount of oil in the IC and it only reaches the throttle body if I get into boost.

I drove without hitting boost and didnt see any smoke.

Next up reading up on how to remove the bumper and IC to drain and clean.