thanks for the help guys,
here ios the story,
Car suddenly ran out of coolant due to poor maintenance of the coolant, the radiator inside looked blocked and had very brown filthy coolant in it, was horrible, i flushed it as much as i could and filled it up and was ok for a few weeks, now whenever the car warms up it overheats badly and it steams from the top radiator hose mailnly but the bottom hose is quite warm also..
now:
-I have checked the thermostat and its fine, however when i pulled out the thermostat behind it (in the block) was nice an green coolant, everything before coolant enters the block which is the top/bottom radiator hoses + radiator had filthy brown shit in it, that should mean something right? however the thermo opens up fine, i tested it in boiling water :S
-clutch fan seems ok
So far I have taken off the old radiator and got a new one ready here, I have flushed the block via the heater hoses and took off the coolant reservoir bottle and gave it a clean (had brown shit in it too)
Anything else i can do? should i install the new radiator and see what happens?
If its the water pump im just gona give it to the mechanic to do.
much appreciated guys !