tonytav
Member
Hi guys, down at boat trying to figure this stuff out. Have a 05,280 twin 4.3 alphas. Getting an alarm for low water press, not sure if its impeller or sensor or clog. Start boat both smart craft gauges read about 25 , let idle for a minute both drop to about 10 then starboard keeps falling to 0. But boat doesn't over heat stays between 150 to160. Thermostat has 3 hoses a blue drain plug and looks like a 3/8 tapping on top with a plug in it. Question is If I take out plug and put a water pressure gauge in it will I get a reading that I can go by. Also noticed that my water distribution valve is striped blue handle on top just keeps spinning, not really sure if that plays into it. Any help is appreciated , thanks again