[30 Closed Cab PU]

Check your radiator core, if it has only 2 rows of tubes, most likely it is undersized.
Brassworks radiators are the only known exception.


If using a IR Temp gun. Top tank to bottom tank - temp differential with car running warmed up should be 20 -30 degrees.


With car running scan left to right at midway down the core , then about 6 inches up from the bottom of the core.


At mid level horizontally, all core tubes should be about the same temperature, 5 degrees or so.


Same with horizontally 6 inches from the bottom of of the core.


If you find tube(s) that are cooler than the others, you have a blocked tube(s).


Any problems with the above, hopefully a radiator/motor back flush/flush helps. Then may need to use backflush/flush treatments.


A model A cooling system (radiator/water pump/motor) in like new shape, will not steam or lose coolant once it has "found its level".


As mentioned multiple times above do not over tighten the belt. As long as the belt does not slip on the pulleys when running, that is tight enough. Too tight can cause water pump and generator bearing failures. You should have about 1/2 inch to 3/4 inch of deflection in the belt. The single nut bolt should be sufficient to hold the tension, unless for a fact you know the nut is loosening, can not remember of the gen has a lock washer.