[s-cars] Are all Audi AAN heads cracked?

[Bares, Vittorio]

I just changed the HG on my AAN head. My head has cracks - and I've been told by this list as well as on Motorgeek that this is just the way it is. We live with it - apparently without adverse effects. I replaced my head with one that had no cracks - I just happened to come into one through a series of events.

I will say that the machine shop was not comfortable with the cracks.

Vittorio -
-----Original Message-----
From: s-car-list-bounces at audifans.com [mailto:s-car-list-bounces at audifans.com] On Behalf Of chris chambers
Sent: Wednesday, September 23, 2009 8:02 AM
To: Scar
Subject: [s-cars] Are all Audi AAN heads cracked?

Gentz,

I have a friend searching for a good uncracked AAN head.
He just found out that the head he had purchased that was described as havin been
rebuilt ~10,000 miles; has cracks in all 5 cylinders, with multiple cracks in 2,3 & 5. 

So my questions are: 

1. Do all of these AAN heads have cracks and we simply live with them or is he just having a hard time?

2.I have an unmolested stock engine (car wasn't chipped) that runs well, if I pull the head off that for him
is it likely that I will discover it has cracks in it's head. 

3. What is the best way to check a running engine for cracks in the head?


Regards
Chris



      
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