I have replaced a waterpump due to a broken plastic impeller. Replaced thermostat to be safe. I ran the engine and tried to purge any air in the system, still ran hot. It doesn't appear to be flowing in the radiator. The pump that I replaced said counter clockwise rotation, but my engine only runs clockwise and it uses a V-belt system. I haven't replaced the radiator yet, do I need too. I also replaced the temperature sender to make sure I was getting an accurate reading. Any suggestions, please help.