If you just filled this motor up with antifreeze, you could have air trapped in the system. Also, as far as the thermostat opening, if it gets hot and the top rad hose is cool, the thermostat is not opening.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!