I've got a '76 F 150 with a 390 motor. I recently drained the motor and radiator (the green of fresh antifreeze was long gone; replaced by thich rust color soupy like water) and when refilling with fresh water got an wanted cloud of smoke billowing from the moter. It appears that there is oiul being blown out of the motor, on each side of the motor, which then hits the exhaust manifolds and creates a cloud of smoke. The oil looks like it's coming from under each head just above the front cylinder. My thought is that once the thermostat opened and cold water was released into the motor something broke. Is it likely for the block to crack and send oil pumping out on both sides? Could it be that both head gaskets went bad in the same spot at that precise time the water flow began to the motor? Any ideas on the topic would be of help in determining if the motor is salvagable.
- posted
18 years ago