So i was overly curious to figue out just the the hell is causing me to burn oil...there must be a reason... i start to take off all the I/C pipes and there covered in oil.. i take of the turbo intake...covered in oil. I spin the fan, it spins ok with my fingers, doesnt feel to bad..i wiggle for shaft play and NONE at all!! i wiggle it in and out and NO PLAY! im like WTF~!! so i take off the intake and hook up my stock filter to the TB and this is what i found...

http://www.youtube.com/watch?v=2bfhzTOQR7o
Idk what to think?? I know the turbine wheel is spinning because i can hear the purr, but the cold side compressor wheel is not spinning...it only spins when i give it some throttle then stops FAST. What do you think? im thinking:

1) siezed, or about to be, heat problems
2) The compressor may be to tight?? IDK??

ether way do i need a new turbo??

 

so the bearings took a dump. I wonder how common that is?

 

so the rebuild didn't work or may have been done incorrectly?

 

I put everything in just the way i took it out :-( is the compressor wheel nut not tight enough or something? is the compressor wheel suppost to spin freely with your fingers or is it suppost to be hard to move?? on a side note.. the compressor wheel hardly spinning prob is whats giving me the ****ty gas milage right? lol

 

if the hotside is spinning the coldside should spin as well. i think you got a nut loose or something...

 

Damn..so i gotta take the turbo off and tighten the nut down..i think i HAVE to take the turbo off the car cuz i cant tighten the nut without the shaft spinning. When i did the rebuild kit, i didnt go tight really on the nut at all..i went finger tight, then i gave it a 1/4 turn tighter.. how tight should this nut be?

 

I'm pretty sure the compressor wheel and turbine are on the same shaft. So if the compressor wheel is not spinning, turbine wheel isn't spinning either. What turbo is it? Mayb one of the covers was not installed correctly causing one wheel to rub on the housing. The intake side looks good so it's prolly the turbine side.

Edit: or it could be bad bearings.

 

Its the evo 8 TD05HR 16G turbo, yeah the turbine wheel is fixed to the shaft while the compressor wheel is held on with that front nut. Also when i revved it up a bit i could hear the heat sheild i belive its called, looks like a cover where the turbine wheel sits on top of inside the hotside, it was rattling!

 

So then why do you think the turbine wheel is spinnig while the compressor wheel stats still? Video shows the shaft not spinning unless your rev up.

I have no clue on what "heat shield" your talking about. Remove the turbo and disassemble it. That seems like the only solution to this problem.

 

Oh yeah dude...your right.. if that were the case i would have noticed the shaft moving but the compressor wheel staying still and not moving.. so your right the turbine wheel is not spinning.. Hmm.. maybe i over tighted the nut where the compressor wheel is? And here is a pic of the heat sheild:



See the peice with oil on it.. thats the "heat sheild"

 

I think the nut is to tight! If you look at the video the turbo shaft doesn't turn until the blades turn. If the shaft was turning the the blades were playing keep up with the shaft that would mean the nut was to loose. Since they both turn at the same speed and stop at the same time it's logical to assume that the nut is to tight. just a thought, but you should see what the TQ specs are for the turbo and TQ it to the right specs.

 

I dont think over torquing the nut would cause it to not spin. There's only 2 things I can think of. 1 the bearings are bad. Or 2 the turbine is getting coughs on something. Either the cover or something internally like the "heat shield" you speak of that's loose. Don't think there should have anything loose in there.

By the way, I still don't know what "heat shield" your talking about.

 

Yeah i was thinking this too, although i can move the compressor wheel pretty easy, although it does not spin continuously if i try to spin it just real quick, it simply stops spinning as soon as my fingers leave the compressor wheel, so this could be why. Since the shaft is not spinning, this is why im blowing smoke right? oil back up?


Idk, if the nut is so tight that it wont spin all the time, this could be a good reason for the turbo burning oil, back up in the oil supply, and i just did a rebuild kit less than 4k miles ago, i also always let the turbo cool before i shut off the car, and its only boosting at 5 psi.. Im thinkin the nut being too tight could be the issue man. I just got a turbo just to be safe, when i install the new one ill take the old one and see if i can figure it out

 

Good luck..update when you figure it out. In really curious now

 

Will do man, i should have the new turbo in a few days, maybe next tues or wednesday, but this weekend, ill take the turbo off and torque it correctly and see if that changes anything and ill take another vid to update