82 Scirocco Overheating Still!

:banghead: ok so far in my 1982 VW Scirocco since it started overheating a week ago. ive taken the Heater Core out of the system and looped the lines that go to it. that did nothing. next i replaced the thermostat. that also did not work. that leaves 1 thing left in my experience with cars. the water pump. so i changed that. but to no avail. it still over heats. im not sure if maybe after the week i waited for the water pump to come in maybe the coolant needs to work its way through the engine a bit. but either way its over heating still and i dont know what to do. can someone help

ok sorry for being an idiot. i didnt realize that the only way to fill the radiator all the way was through the pencil sized hole at the top of the filler tube. damn thats a bitch. but its fixed. so thanks anyways

Did you check if the rad fan works? There are thermostatic switches on the side of the lower left side of the rad.