[s-cars] Oil Smoke on startup

[Jenny Walsh]

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Hi all,

This is the first time I have posted, although I have enjoyed the list for =
2 years.

I have a 93 S4 with 120,000 miles.  Recently, the car has begun to puff an =
oil based smoke when the car is started after sitting for ~8 hours.  The sm=
oke, which blooms like a big cloud, only lasts for about 15-30 seconds, the=
n it disappears for good.... The (stock) car pushes 15.5 PSI and vacuum at =
idle is 18.

The car has a new bypass valve and when pressure tested, did bleed a little=
 air at 5psi "somewhere" in the back of the motor (near the firewall).  We =
couldn't find exactly where, but you can hear a gurgling noise for sure. Th=
ere is also some oil stains (not really leaking) on the back of the engine =
closer to the passenger side. Also, there is oil in the spark plugs wells. =
The number 2 plug was covered in oil up to the tip, the others have just a =
little. This means a new valve cover gasket, right?

I am thinking that oil is somehow leaink into the intake/cylinders and what=
 I see is that oil burning off at startup.  Are there any common failures t=
hat I should look for?  Where should I look?  I mean, it is really embarres=
sing!  What should I do next?

Thank you oh great list, Quinn





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