Headwork on a cracked head?

[isham-research.freeserve.co.uk at pop.pol.net.uk]

> When I pulled the head on my WX those many years ago I found quite a few
> instances of small cracks between the valve seats or from the valve seats to
> the spark plug hole.  I guess the Bentley didn't exist at that time ... or
> something ... memory is a bit fuzzy.  I remember taking the head to a
> rebuilder, who took the thing apart and then told me it was bad and
> irreparable.

  "Zylinderkoepfe mit Rissen zwischen den Ventilsitzen bzw. zwischen
   Ventilsitzring und dem Zuendkerzgewinde koennen ohne Herabsetzen
   der Lebensdauer weiterverwendet werden, wenn es sich um leichte,
   max. 0,5 mm breite Anrisse handelt oder wenn nur die ersten
   Gaenge des Zuendkerzengewindes gerissen sind."

   Audi 000.5148.29.00 5-zyl. Einspritzmotor (4-Ventiler), Mechanik

I hope that clears this up once and for all.

--
 Phil Payne
 UK Audi quattro Owners Club
 http://www.isham-research.freeserve.co.uk/quattro
 Phone +44 7785 302803   Fax: +44 7785 309674