I have spent the past 26 years restoring a 1941 Chevy 1 ton, have rebuilt the engine, transmission (4 speed w/ power take off) complete electrical, new fuel tank, and numerous items that would take too long to explain. Finally went down the road this past Wednesday. Used 4 gallons of water going 3 miles. Truck kept overheating.
I have flushed the radiator, block, heater core. Put 3 different thermostats and the truck still overheats. Disconnected the heater thinking that this was causing an air bubble, removed the stat in the head to bleed until antifreeze came out.
I am not filling the radiator past about 1 inch above the core.
Still when I go down the road fluid pushes out the overflow tube, then the temp gauge starts to get into the red I pull over and the radiator it boiling. After a few minutes I put in some more antifreeze and go down the road again.
(Really getting discouraged.)
The truck starts even when its hot. Then the temp gauge will go down to about 160, I am running a 160 thermostat.
Any assistance with this problem would be helpful.
The only thing that I haven't checked was the head gasket.
No water on the plugs, in the oil or coming out the exhaust.
