where can i see how the water flow thur the system on 1986 nissan 300zx?

[MreKnowitall]

I guess it works then.
Are you having problems? Or just curious?

 

[FrankH]

my top hose are hot and bottom hose are very very cool

 

[BillH]

if the car has been running a while,you can remove the radiator cap very carefully and see from there if the water is flowing.