[MBZ] Cracked head?

[Peter Frederick]

I think the head finally let go on my 67 300D -- suddenly I'm adding 
coolant and I have a condensation trail on very cold mornings for a 
while.

I do have some oil in the expansion tank, too -- will check for cold 
pressure tomorrow (this has not been a problem yet), but I suspect I'm 
going to have to look for a head.

Sigh.

Peter