Visible Exhaust Smoke- Flunked Emissions

[Sullivan, Alan]

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Jobe,

I've noticed the same effect, but it's been the case since the car was new.
Biggest impact on oil pressure was using a Fram.  After a thousand miles, it
capped oil PSI at 3 bars.  I immediately switched back to the OEM/Mahle
filter and it's been fine ever since.  I see no relationship between my
smoke situation (it's just a little bit and I'm not using very much oil) and
Oil PSI.

Alan

-----Original Message-----
From: Jobe Tichy [mailto:bimmer_dude at hotmail.com]
Sent: Thursday, August 29, 2002 5:07 PM
To: eyvind.spangen at c2i.net; alan.sullivan at lmco.com
Cc: 200q20v at audifans.com
Subject: Re: Visible Exhaust Smoke- Flunked Emissions



Would a blown turbo seal also have a correlative effect on lower oil
pressure?   I just drove 300 miles yesterday in 95 degree heat and saw that
my oil pressure, after the oil being hot (110ish plus Centigrade) for a long
time, would read 4.5 bar but not as high as 5 when cruising.   I first
disregarded this as being really hot oil from the outside temp and thus less
thick or the valve in the filter possibly blowing off, but not a turbo seal.
I have 170,000 on the original turbo, and notice some smoke on start up but
not at idle.  I also passed a stand-still emissions in Washington State no
problem in March and pull 1.7 also.  Not quite sure what's going on in
there???

Thanks.

JOBE

'91 200tq 20v

'84 BMW 318i (modified)

>From: Eyvind Spangen
>To: "Sullivan, Alan"
>CC: 200q20v at audifans.com
>Subject: Re: Visible Exhaust Smoke- Flunked Emissions
>Date: Thu, 29 Aug 2002 18:15:51 +0200
>
>On Thu, 29 Aug 2002 08:10:15 -0400, you wrote:
>
> >My 91 200 TQ just flunked the VA emissions inspection for visible smoke.
> >With 156,000 miles on the car, I'm facing a fix-or-dump decision.
>
>I'm not sure, but it sounds like a turbo seal failure. When cold, the
>oil is thicker and won't get past the seal, but as the engine warms
>up, it gets thinner, and the exhaust starts smoking.
>
>The turbo in my 200q lasted 165k miles, when it started smoking a lot.
>It also smoked white/blue smoke when idling. A new turbo was
>installed, smoke gone for good..
>
>One strange thing is that your turbo pulls 1.7, mine could barely do
>1.4 just before I replaced it..
>
>--
>E. Spangen
>'89 Audi 80 2.0E quattro
>('90 Audi 200TQ20v - garasjedronning)
>_______________________________________________
>200q20v mailing list
>200q20v at audifans.com
>http://www.audifans.com/mailman/listinfo/200q20v

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