[s-cars] Valve cover leak causing boost drop ?

[Wylie Bean]

Are you sure it's not leaking from the rubber 90 deree hose that goes into  
the back of the VC? Mine deteriorated and was leaking and hissing like that.  
 

Wylie Bean
theringmeister at triad.rr.com
90 cq
91 90q20v
91 200q20v
92 urS4
08 Q7

-----Original message-----
From: Jim Fleischer <jim at almgt.com>
To: s-car-list at audifans.com
Sent: Thu, Aug 16, 2012 21:32:45 EDT
Subject: [s-cars] Valve cover leak causing boost drop?

Hi all,

I was just able to get a minute with the proper tools to pressure test for  
vacuum leaks......I've noticed a little oit leaking down the back of the  
engine before, but not enough to need to add any between oil changes.....I  
now can clearly hear air escaping past one of the half moons at the VC  
gasket under 10 lbs. of pressure......question is, is this enough to be  
causing my boost levels to drop and "lean out" at higher loads?  All hoses  
are solid under that pressure.

Car has 140K on it, original gasket afaik.  Thanks for any info!

Best regards,

Jim Fleischer
'95 s6 avant
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