Changed a few valves and lifters 3 weeks ago drove for approx 2000 kms without any issues a few days a go the car over heats there was a small chafe in one of the rad hoses going to the water bottle now car keeps going dry. It spits it out from the water bottle through the vent will not over heat as long as there is ant-freeze in the jug but does not last long ounce it's up to 90 degrees. Car works fine lots of power no white smoke from exhaust changed thermostat even took out the water pump it is in great shape and metal impeller firmly attached. Any ideas??