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

[JShadzi at aol.com]

Agreed, a leak down would be beneficial as well.  I recommend a pressure gauge in your crankcase because nothing will identify the problem like measuring it dynamically, leaking rings will only correlate you to the problem, it won't tell you whether your crank case evacuation system is actually working.

HTH,
Javad

>
>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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