water pressure
#3
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i just put a hardin marine stainless sea water pump on with a new autometer gauge off the 1/8" fitting on the pump. i have 0 idle and about 5 or 6 pounds at 3000 rpm. any guesses? thanks. it is pumping water at an idle coming out of the pipes. it seems to actually have a slight vacuum at the gauge line when it's idling
Last edited by perky2196; 10-11-2010 at 05:52 PM.
#5
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Fixx
i just put a hardin marine stainless sea water pump on with a new autometer gauge off the 1/8" fitting on the pump. i have 0 idle and about 5 or 6 pounds at 3000 rpm. any guesses? thanks. it is pumping water at an idle coming out of the pipes. it seems to actually have a slight vacuum at the gauge line when it's idling
#7
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Are your numbers running the boat on the hose, running it in neutral at the dock or actually running the boat???? It makes a big difference.
#9
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Water pressure numbers on the hose are worthless other than at a fast idle. You need to run the boat at speed for real numbers. A hose can't supply enough water for accurate readings and does not duplicate the water being forced in by the speed of the drive/pickup going through the water.
#10
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I think mine is about 2 lbs at idle in the water, goes up to about 12 lbs at 3/4 throttle. I also have a pressure relief valve that will start trickling water at about 45 mph. Don't know if this is correct or not, but it's been this way since i've had it. I have my pick off at the thermostat housing.
Just wanted to add that this is on a standard bravo with the standard water pick up, with a nose cone. 502 MPI. Impeller in the sea pump has about 35 hours on it.
Just wanted to add that this is on a standard bravo with the standard water pick up, with a nose cone. 502 MPI. Impeller in the sea pump has about 35 hours on it.
Last edited by cloudmaster_321; 10-13-2010 at 12:19 PM.