[vector1]

the id of the hose is 1.5", thin wall aluminum connectors would be minimal, the cap fitting probably 1.25" range.

how do i read the pressure loss & head loss? no pressure at the cap? i remember reading somewhere on the pressure side of the radiator expect around 13#, + pressure buildup from temperature increase.

i went out and looked at the coolant level, there was adequate coolant in the upper tube because it had pulled some of the coolant back in, probably adequate for driving but would have to keep an eye on it for a while. maybe air in the system somewhere and it has finally reached a normal level.

just am a little leary of coolant issues. when the thermostat opens there is some pretty good action though.