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Black Substance Around Turbo Inlet

LANDSCRIBBLE

By LANDSCRIBBLE,
in Engines & Forced Induction

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jjman Mentor

jjman

Posted
Posted

good point. I would have thought the same...

only explanation i can think of is that it would flow in this direction when off boost...? (which is most of a vehicle's driving time unless its a track only car)

GTSBoy Grand Master

GTSBoy

Posted
Posted

Nah. Direction of comp wheel rotation will have noting to do with the upstream swirl direction. Upstream of the comp wheel the swirl direction will be determined by the geometry of the duct, the elbow, the AFM, the filter. All those things will sum up to shape the flow. The comp wheel will present as a solid face compared to that, even though it seems like it would be a powerful driver of the swirl.

LANDSCRIBBLE Mentor

LANDSCRIBBLE

Posted
  • Author
Posted

Getting photo's of my setup will prove difficult as the motor is all pulled apart. There is no considerable amount of oil in the turbo outlet, elbow, or following cooler pipes, albeit a very fine layer of oil which was from before when the stock turbo spat the dummy.

I reckon its just the oil in the filter thats been sucked in.

JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

Is it just me or is the oil 'vortex' pattern going the opposite way that the air would be sucking into the compressor wheel?

My thoughts also. I've had a heap of oil go through the intake via breathers and I've never seen it swirled like that. I'd check your FMIC for leftover oil from your previous problems, it looks like it's getting blown back through the turbo when you back off.

jjman Mentor

jjman

Posted
Posted (edited)

easy way to diagnose then. clean all of this oil up (both sides of the turbo), put on a dry type filter, run it for a bit. Pull off pipes agan n see whats the giggety-go.

Edited by jjman

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