Quote:
Originally posted by Zero10
Sounds like either an AOS problem, or a turbo problem.
If it still builds boost properly, and doesn't consume excessive amounts of oil, then don't worry too much.
Check your turbo for shaft play.
The oil ontop of your turbo is from the intake track. When it is under pressure, the vacuum line on the bottom of the throttle body leaks, along with the seals for the throttle butterfly. This allows a small amount of oil out, and down onto where you are finding it.
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Sounds like you were right about the oil leaking from the throttle body. There never was a vacuum line attached to the little outlet under the throttle body, but I'll be sure to connect everything when I'm putting it all back together.
As for the AOS, have you ever replaced the seals on the turbo? This thing is impossible to get to!
I took out the top two bolts, but the third one is wedged inside the hole by the heatshield next to the turbo downpipe. Also, I've managed to slowly back out the third bolt, but even if it's out, I'm wondering if I'll have enough clearance to actually pull the AOS towards the turbo downpipe so that I can pull it out. Any experiences?