[A4] PCV?

[Chris McIntosh]

As far as I can tell, item 20 is the PCV valve, I just replaced mine on my
a4 4 cyl codeAEB  last summer. The vent line comes around from behind the
block and vents into the air intake hose after the turbo.  I guess to burn
off any oil that seeps out. Not sure where it is on the 6 cyl but it should
vent into the intake hose as well. Assuming Audi kept their ideas the same.
 The PRV or pressure regulating valve is only on the 4cyl tubos, it is the
recalculating valve, or blowoff valve.....it has many names.  It just dumps
air when you let off the gas, to prevent an overpressure in the intake hose.

Chris
----- Original Message ----- 
From: "Arthur Marks" <aamarks at cox.net>
To: "Matt McKinney" <audi90v8tt at yahoo.com>; <a4 at audifans.com>
Sent: Thursday, February 23, 2006 8:10 AM
Subject: Re: [A4] PCV?


> For 4 cylinders check out part #6 in the first few diagrams here:
> http://www.pookrat.com/uploads/pics/TSB.pdf
> It's called a bleeder valve on ETKA, but my Audi mech. said it is
> essentially a PCV. I can't find it in my B6 Bentley CD either. It's shown
in
> some of the vacuum and charge diagrams, but not labeled. Not sure if the 6
> also has that. There's also a big black plastic valve called a pressure
> regulating valve that I think is also on the 6 cylinder.
>
> --Art
>
>
>
>
> ----- Original Message ----- 
> From: Matt McKinney
> To: a4 at audifans.com
> Sent: Thursday, February 23, 2006 7:05 AM
> Subject: [A4] PCV?
>
>
> Hi everyone,
>
>   I am starting to notice a little more oil than usual coming from my
seals,
> including oil cap.  So I looked over my Bently manual on CD and I cannot
> find the device which relieves the crankcase pressure.  I have a '98 A4
30v
> Q.
>
>   Thanks for the help,
>
>                Matt
>
>
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