Oil in the IC hose?

Bernie Benz b.m.benz at prodigy.net
Mon Mar 4 18:05:48 EST 2002

There are two possible sources of oil in the intake system.
Worn turbo bearings causing oil leakage into the compressor.  Very bad, but
uncommon, IMO.
A light oil coating in the intake system is usually from the crankcase
breather system which, under boost, exhausts into the intake system just
ahead of the turbo air intake.  Hard right turns with a full crankcase
aggervates the problem.  There is a flakey oil seperator in the breather
line, Bentley shows it located near the exit from the crankcase, but it is
actually the ell fitting located high on the passenger side of the engine
just as this breather tube turns forward and behind the heat shield toward
the turbo.

My fix:
More of this oil aerosol exhausting the crankcase can be condensed and
returned to the crankcase by adding a stainless steel kitchen scouring pad
loosely stuffed into the enlarged section of this hose immediately above its
connection with the block.


> From: Chewy4000 at aol.com
> Date: Mon, 04 Mar 2002 15:01:18 EST
> To: <200q20v at audifans.com>
> Subject: Oil in the IC hose?
> What causes the IC hose to have oil in it?
> I just noticed the MichMan hose was a little oily.
> Took it out clean and inspected it to find no crack to I installed it back
> hopefully it was the tighness.
> But what causes the oil to slip this way?
> Chewy
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