Oil in exhaust housing of turbo! Help!

[anadaron]

Ok well if you saw my thread about my turbo not spooling i finally got the downpipe off to check the exhaust side of the turbine.

Well the diagnosis is no shaft play, no boost at all, and the exhaust housing has oil all over the inside of it. What could be the cause of this. The engine is still running flawless so i doubt it is an engine problem. Please help diagnos the problem. Need to order a new turbo tomorrow if it is history.

Thanks guys!

 

[Aztlanahauc]

Seals are most likely gone.

 

[anadaron]

What would cause a seal failure like that on a turbo with less than 4000 miles on it?

 

[pwr.slave6]

Check your wastgate. It could be stuck open if you have no boost.
As far as your turbo i feel for you ,mine has a small amount of oil on
the compressor side has maybe 2k on it. I,ve decided to plum in a relief
valve to vacate the charged intake air .(the pipe that goes to the t.b)
I think this will promote turbo life on a street buick running 26lb. all
the time. :biggrin:

 

[anadaron]

Well the wastegate seems to be fine. The rod can be pulled out(although it is not easy to do it). What would a properly functioning wastegate feel like?

 

[pwr.slave6]

I read your other post a moment ago . If you say you couldn't move the
compressor wheel because it was hung up or stuck... in short the turbo has
a problem and is never going to perform properly until it is repaired and
balanced.
Is the turbine wheel turning in sync w/ the compressor side when you turn it by hand? Just wondering if you have a broken shaft.

 

[anadaron]

Yes both wheels turn in sync with one another. I am pretty content on buying a new turbo gonne go GT6152 as Mike has them on sale for 675 shipped. I just want to make sure i nail down the problem so that when i get my new turbo this does not happen again. I am a full time college student and i work fulltime so money is tight and i have limited resources to be wasting on broken turbo's.

thanks for all the help so far.

 

[84BuickGNYorkPA]

After running the car hard, give it time to cool the turbo housing down some, by not shutting it off right away. In other words don't get into the boost only to pull in the driveway and turn it off, run it around the block and that gives the turbo time to get fresh oil through it to cool it back down. If you shut it down to soon it will shorten the turbo life.

Chuck