thought of that but it has brand new rad , thermostat all pipes were off and cleaned when engine was out new engine brand new turbo.. im sure it has air in the system as ive bled it from the places like thermostat housing just normaly i can get it to come out from the top of the turbo.. which when i took it for a slow drive round the block seemed to get very hot. although temp gauge didnt read that hot.. i know the turbos can be run without water but as its their id rather use it.. if i get time ill have another go later..