Re: 1955 Fleetwin, running hot?

[shoestringmariner]

ok, so everything looks ok to my untrained eye…no blocked passages that I can see. Small hole on an angle is clear.
Was thinking of looking at the impeller after all, but how could it be bad if the head is not getting hot?? Surely its getting enough water. Lots of water coming out the stem’s exhaust port.

Can this motor be running hot for other reasons? Can burning too much fuel create too more exhaust heat?

Another question, why is the stem not full of water if there are small channels designed to spray water inside it?