Please tell me I didn't blow a turbo seal :(

[Scott & Heather]

Black thick sticky stuff leaking out of flex  joint where downtube of exhaust connects to turbo outlet. See photos:





Sent from iPhone via Tapatalk

[Ralph7]

     Could it be that to much engine oil in fuel and it did not burn! MY old original 8-71 did a number like this and it had several bad injectors.  I drove it 3 miles on a hard pull , lots of heat to get it to clear, after new injectors.     

[bevans6]

In your case, since your troubles with WMO, I would think that is unburnt fuel/oil and soot creating a gooey mess.  It's probably down to poor combustion and failing injectors, but probably not turbo seals.  Not to say that you haven't ruined the turbo with the junk you've been running through it...  Just that it looks like the typical unburnt fuel/oil/soot mix I used to get from my old, worn out engine.

Brian

[Oonrahnjay]

    I think that there's a good chance you didn't.  I don't know about your turbo but many turbos have "hard seals" -- the only thing that seals the lube for the shaft is a very finely matching set of metal surfaces, often in a "labyrinth".  Even with a little normal wear, you get a tiny bit of seepage past them and that oil gets pretty heavily cooked as it's coming through.  If you have 1 1/2 oz. settled in the bottom of the intake pipe after tens of thousands of miles, that's nothing.  If it's 1 1/2 cups in a few hundred, you're in trouble.
    The word is that driving them hard cuts down on the seepage - the pressure of the exhaust loads the shaft are in the direction that closes the clearances in the turbo and reduces the amount of oil coming through.
     But I don't know the details of your turbo, but it could work like this.

[Uglydog56]

turbo seals are cheap and easy to replace.  I recommend you hope that you don't have a bad injector burning a hole in a piston.  (PS I'm rooting for you on the whole wmo thing.  Fight the power!)

[Scott & Heather]

Thanks so much for the advice. An injector burning a hole in a piston? How would that exhibit itself? Why can't I hear my turbo whine at all?


Sent from iPhone via Tapatalk

[Zeroclearance]

One thing that folks haven't suggested is a compressor or turbine wheel failure.   That would explain your engine being down in power and the smoke.   From previous posts I think that you were replacing elbows and downpipes.   If you did anything on your compressor side FOD damage is possible.   

Replacing the seals on "any" turbochargers is easy..   It is getting the new seals to wear in to a worn bearing housing seal bore.   The 2 cycle turbochargers require alot of machining to bores and seal ring grooves to work correctly long term.   

My recommendation is to pull the intake inlet boot and examine the compressor wheel, and if you have oil in the compressor housing.   I would also check if you have any axial back and forth movement in the assy.   Don't jack the wheel up and down, we want to feel the back and forth movement. 

[Scott & Heather]

Ugh. Just used tapatalk to write out a long response to zeroclearance and it crashed. Long story short, turbo looked fine. Minuscule amount of lateral play. No oil intake side, minor oil dampness exhaust side. Ran B99 bio in it straight for 30 minutes before filling with diesel. Tank is cleaned and drained. Changing fuel filters tomorrow. Should I blow the fuel lines out with compressed air from the filters back to the tank?


Sent from iPhone via Tapatalk