[s-cars] Crank Case Pressure and Turbo Smoke?

[Trevor Frank]

Or ...sorry didn't want re re-read the whole thread, have you done a leak down?

-----Original Message-----
From: s-car-list-bounces at audifans.com [mailto:s-car-list-bounces at audifans.com] On Behalf Of JShadzi at aol.com
Sent: Thursday, February 24, 2005 2:41 PM
To: "Cody Payne"; s-car-list at audifans.com
Subject: RE: [s-cars] Crank Case Pressure and Turbo Smoke?

Cody, I can't imagine its your drain line, it looks fine, the turbo is so much higher than the drain into the block, plus looks like you're already using -12.

The only thing I can recommend is to put a pressure gauge on your crank case to see what the pressure is inside the block, any pressure at all will push oil back up into the turbo.

HTH,
Javad

>Gents,
>    Well so far no luck here...still smoking and small seepage of
>oil on the hot-side.
>
>So far I have:
>-1) Fixed small drip on Oil Return line in the hopes that the oil was
>hitting the hot side turbine
>http://worldsbeer.com/urs4/P1010023.JPG
>
>-2) Replaced the Valve Cover PCV return line with an open air breather
>http://worldsbeer.com/urs4/P1010030.JPG
>
>-3) Placed on .04" Oil Restrictor on the high pressure oil feed
>http://worldsbeer.com/urs4/P1010019.JPG
>
>But oil still seems to be coming out between the center section and hot
>side:
>http://worldsbeer.com/urs4/P1010029.JPG
>
>Ola over at ITS states "....most likely it is leaking due to oil level
>inside the bearing housing is able to reach the area of the piston ring
>seal, this "seal" which is not there to keep oil in, but to keep
>pressure from the exhaust out, cannot stop the oil from flowing past
>it."
>
>
>My next thing to try is to shorten the Oil Return hose so that it has a
>downward sloping angle all the way and doesn't flatten out at all:
>http://worldsbeer.com/urs4/P1010017.JPG
>
>If that doesn't work I either have:
>-1) Bad PCV Valve (Any write-ups here on changing that?)
>-2) Bad Turbine oil seal
>-3) Thicker oil? Running M1 10W-30
>
>
>Any other thoughts?
>
>Thx Guys
>
>Cody
>
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