[Vwdiesel] Cracks in Heads by Valves

[Val Christian]

Just looked at a head from a 1.5.  The head is off a 78 Rabbit,
and this head has somewhere between 500,000 and about 580,000
miles on it.  It's been rebuilt three times.  Three of the four
cylinders have cracks between the two valves.  The largest one
is barely 0.005".  (With force, and shaving the bill, it'll take
a corner of a dollar bill.)  The other two cracks have less gap,
and I cannot measure them.  They are less than 0.003".