[TR] TR3 Head Crack

[nogera at worldnet.att.net]

I've just disassembled a TR3 engine and the head has a crack that runs
between the two pear shaped  coolant passage holes located between the  # 2
and # 3 cylinders. Looking at the head and the block I really can't see how
this crack could effect anything since it looks like the passages join on
both the head and block. 
I remember seeing a head once before in which a similar crack had been
brazed.

Question: is there any reason to take any sort of corrective action
regarding this crack?

Bob Nogueira