Compressor wheel hitting housing
 

So this only happens when I get on it........my question is which bearing is the culprit. Thrust bearing? This just pisses me off since the turbo only has about 20k. :-\

Re: Compressor wheel hitting housing
 

if it has in-out shaft play then the compressor and turbine are probably shot and soo is the thrust bearing and the regular journal bearings. If it just has side to side play, put some oil in the oil inlet and spin it a little bit, if it tighens up so the wheel doesnt touch the housing, and it has no in-out play ( a little side to side is acceptable) then rock it

Re: Compressor wheel hitting housing
 

It's already in the car..............no in/out and only a tiny bit of side/side. Weird thing is that it spins freely but if you kinda push it to the side it scrapes the housing, you can also clearly see that the wheel is digging into the housing. When at full boost I can hear a high pitched whine/squel which just happened recently. This sound is beyond what the turbo spool use to sound like.

Re: Compressor wheel hitting housing
 

take it apart and hope its not too bad

Re: Compressor wheel hitting housing
 

I had exacly the same issue with my turbo. (t3)
pull the exuast housing off and chek for in/out play.
mine had absolute minimal/moderate play and she was fukd. :-\

u can also hear it scrape , quite a unique sound. might be time 4 a new 1

Re: Compressor wheel hitting housing
 

Same thing happened to mine. Barely and side to side play and no in/out. I doubt oil would have really helped it, so I got a new one.