air lock

changed my radiator today put car back togeather topped up ran it a bit turned it off re toped up and same process 3 or 4 times, noticed bottom hose is luke warm and top is ho,,air lock im sure,any idea how to solve this????????

Think you leave the car running with the radiator cap off. Someone here should know for definite

Would running the engine until the thermostat opens (identified by electric fans kicking in) help the situation? While the 'stat is closed, there is potential for airlock behind it, keep the radiator cap off and you'll see the coolant 'burping' itself while it heats up and expands. Then when the thermostat opens, you now have a single full cooling circuit rather than two circuits separated by a thermostatic valve.

Put some rags around the radiator cap to catch any excess coolant.

Have you got good heaters?

Ye heater fine but gonna put old rad back in then im gonna put her up here for sale great car,01 bug sti or evo 1 from UK for sure

If you have good heaters, you dont have an air lock

Defo top pipe hot bottom cold, rad problem I think gonna re fit rad thermo new coolant, heater was great till yesterday any way she for sale any inspection welcome my eye on a newer 1