Looking for someone with V8Q engine experience! CARBON BUILD up

[SuffolkD at aol.com]

No compression : Carbon build up in the valve areas......

I cross posted this to the V8 list.
I also read that some of this build-up is affecting newer 1.8T and 2.8 
engines due to close tolerances and the lack of routine maintenance while some of 
these cars are in / just off of lease. 
While I can't find the source for this info, consider it ur-Audi legend until 
I find the print story.
-Scott by BOSTON

> > A close friend with a shop called me with some questions
> > about sudden loss
> > of compression on a 1990 V8Q.  Anybody here with some knowledge of the
> > problems associated with early V8s?  Any help or references
> > appreciated!
> > Thanks, John
> From: "Chris Semple" <>
> Hi John, assuming we're past the basics of tbelts and fuel washdown, the
> only really strange one I've seen was a customers 3.6L that was parked warm
> and then wouldn't restart when cooled off the next morning. Towed in,
> sounded weak, tested compression and got nearly zip in a couple cylinders on
> one bank.(best recollection on my part since this was a couple years ago).
> Car had 150k on it or so. We feared the worst, prepped him for a decent
> expense, and pulled the heads. No visual damage to be found, just a generous
> carbon buildup. The chunks were actually holding the valves open enough to
>