first of all i have a 91 civic with a ls b18a non vtec motor with a high flow radiator its 10% bigger then the stock .at first my temperature gauge was bouncing around but never past the half way mark but still felt really hot and when i would drive it would lose a little power so my buddy say that i should remove my thermostat
which i did but now the water in the reservoir increases and looks like its boiling and also the fan has been working regularly the whole time. so i told some dude at auto zone what was going on but hes saying it might be my water pump or head gasket. there are no leaks or bad smoke from exhaust. how do i test my water pump?and should i get a new thermostat?please help Flip

 

ya get a new thermostat never pull them out bad for motor

 

ewww i got the aids lol

 

well i put a new thermostat in and its doing better but I'll see tomorrow and it only gets hotter in Vegas .