Re: Air Lock?
I just got home, having had a 30 minute drive with the car up to a stable operating temperature, and a mix of dual carriageway and urban driving. Coolant temperatures spot on at 80C (recent radiator, coolant, thermostat, thermostat switch) and heater working properly. Top hose felt like the water was probably about 80C (the hose itself was ~60C) and the bottom hose felt like the water was maybe 30C (hose itself was ~40C). So, I don't think yours is abnormal (or if it is, I've got the same problem!)