Correct - if any fluid is expelled from any cylinder, you have serious problems and the head has to come off. Also check the oil for any signs of coolant. If the engine won't crank, but will crank fine with the injectors or glow plugs removed, that's also a bad sign (again, I'd expect liquid of some sort to come out during cranking).
BTW - the links to the Boneheaddoctor / Lester (aka "Schuman") forum don't help. You can't view those unless you register at that forum and log in. You'd need to copy & paste the important info from those threads and post them here...
