I just changed my water pump and timing belt. I have a Boostlogic crank pulley on order and I don't think it will be coming anytime soon as it is on backorder. I didn't put any coolant back in the system cause I don't have a crank pulley to start the motor and get the coolant flowing through the system again anyway. Is it bad to leave the system dry? Will the gaskets become brittle? I reused the two O-rings on the pipe that goes on top of the pump. Every other gasket and O-ring is brand new.