Another new dumb subaru owner here, but I've searched and cannot find a direct answer. Pulled the turbo and saw that the tips of the compressor blades are broken - don't know what did it. Is it likely any particulates made it past the TMIC and into the engine? I do not see evidence of any metal after straining a qt of drained oil through a coffee filter - no obvious sheen or glitter on the coffee filter or in the un-coffee filtered portion of drained oil. Nothing noticeable on a magnet I placed in the drained oil. There did, however, appear to be some silver 'glitter' on the coolant tubes to the turbo but nothing obvious in the drained coolant. No P0011 code, no smoke observed, no crazy noises, no oil usage in the short time I've owned it (about 2.5k miles). I did have a P0021 and replaced the bank 2 ocs solenoid / sensor (the banjo filter had fallen out and down onto the solenoid - there was a small section of screen missing). Had a P1153 - I replaced 02 sensor. Still has P2004 and P2016 - gonna replace that sensor that is up against the turbo while it's out (tgv butterflies were previously removed but the rod, motors, and sensors are still intact).
As for the rest of the turbo there is no shaft play and it spins freely. There were no noises except for a slight 'rattle' / 'tick' from the turbo which I believe was coming from the wastegate flap on the exhaust side. It was not seated fully and was rattling around just a little. That very slight noise is what caused me to inspect the turbo hoping to head off major problems. Car ran fine (other than a bit of rough idle cleared up after ocs solenoid replacement) and seemed to have plenty of get up and go - though I haven't really hammered on it other than the test drive.
Further background on the car - '05 obxt that the previous owner swapped an engine out of a '11 wrx (around 80k now) into. I have no idea if he found any blade matter in the IC and shook it out during the swap, but there doesn't appear to be any in there now. I have not dropped the oil pan.
The vf52 is going to be replaced or rebuilt. Was planning on adding a catless up pipe and gutting the DP - then tune.The other owner was an older guy who likes to wrench around on cars. Didn't strike me as the drive hard and abuse it type. He had 2 outbacks he'd bought and 'refurbished' and offered to sell me either one - wasn't trying to push this one, in particular, on me as if it were junk he was trying to unload.
This is probably posted in the wrong place - maybe even answered and I missed it somewhere in my research - I apologize in advance, if so. I did fahr_side's sticky:
"6. Intercooler / intake manifold cleanup. If the compressor wheel has lost any vanes or parts of, take a look into the intercooler to see if they are loose in there. Nothing is likely to make it through the intercooler but better clean out any metal shards in there just in case. Anything that did make it through has either damaged something or not on it’s way into the exhaust. Either it did or it didn’t cause any damage."
Should I just stop wasting my efforts now and plan on a new engine - or do planned repair / upgrades and roll the dice?