A while ago I removed the whole dash board to replace the dead heater
blower... well it's a tedious job and I recorded all the steps in a file
(if someone want the file please let me know)...
anyway the front heater core is right there, looking quite old.. so I
decided to replace it and the valve too... here's what I did...

- clamp both hoses (in and out)
- remove the old heater core
- fill the new heater core with coolant
- connect the new heater core to only one hose
- check the coolant level in the heater core, fill it up with coolant till
it doesn't take anymore
- connect the 2nd hose
- start then engine and check...

I didn't need to do a whole coolant system bleed and it's working fine till
now.

dan