[semory]

I have a '79 Courier that blew its top! It began to overheat a short while back. I replaced the thermostat and the radiator cap. The next time I drove it blew the radiator cap along with the raditor spout (that the cap locks on to). I took the radiator and had the spout welded back on. After I reinstalled the radiator I put the old radiator cap back on. I drove it home - 60 minute drive. It began to overheat and then it blew it's top again??

Possiblly the water pump????