Quote:
Originally Posted by Ilma
That was one of the weaknesses in the VW/Audi platform.
The stock pcv system could not handle the additional boost from tunes and would allow some leakage and blowby into the crankcase.
You could easily spot it by looking at your oil filler cap......if the oil on the cap looked frothy, it was a sign that your boost was entering the crankcase. Sometimes it would even leak around the oil filler cap.
Dzenno, if you have the BSH catch can, you should contact Phil @ BSH as he did a lot of work fortifying the VW PCV system and came out with some useful bolt on kits that made sure boost didn't enter the crank and that there was still a vacuum source during idle/deceleration cycles.
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Yeah, I notice a lot of discussion on this topic on vw/audi forums around their PVC setups and failures around checkvalves...
If you have Phil's contact info please pm it to me..i'll call him..
EDIT: Sent BSH a message through their site describing the issue, awaiting response. Found this on their site which they've done for the VW engines:
http://www.bshspeedshop.com/bshstore...CV-Revamp.html