[V8] CD shop manual

[cobram at juno.com]

7013885254 <chance9121 at gmail.com> writes:
> There is going to be little luck with any of the aluminum high zinc 
> content blocks (pt,abh, abz, etc) because their bores are acid 
> treated to leave a strong zinc face.  Makes it tough to do anything 
> to.  Due to this audi considers the shortblock a 'throw away' unit 
> since any damage to the bores screws you.

These are NOT "zinc" blocks.  Amsoil propaganda.  The body is galvanized,
that's the extent of the zinc on the V8Q's.  
The cylinder block is cast in hypereutectic alloy of aluminum with a 17%
silicon content.  It's an Alusil block made by Kolbenschmidt AL for Audi.
Cylinder areas are specially treated to etch away the aluminum and expose
the hard silicon crystals as a bearing surface for the pistons and piston
rings.
BCNU,
http://www.geocities.com/cobramsri/
Most conversations are simply monologues delivered in the presence of
witnesses.