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did you figure out a way to put resistors on this pesky sensory I still have to rev the engine every time i start it to keep the idle pressure readings up. How about a voltage divider in the 5v supply line Reduce it to 4.5 volts so its reads a higher psi..

thats a very good point. Ill have to take a look at the check valves . I think its flares up on start up. I do a manual flare up of sorts to keep the alarm from going off. Its the only thing i found to keep the alarm off so far.

well so much for that idea. What else could make it slow to build water pressure when the engine is warmed up? One of the marinas that viewed my video told me the alarm is going off too fast, it should take longer than 15 seconds to set off the low water pressure alarm. I reset the codes as...

someone asked me if i have the right exhaust elbow gasket and there is 3 different ones to choose from. Well i guess if the factory put the wrong one in it could cause me to have low back pressure when the thermostat is open. That would make it hard to build pressure when warmed up.

yeah i had my ECM updated last year but not to change the horn sounding. I dont have a check engine light so not sure ithis bulletin applies. Does it prevent gaurdian mode from kicking in? I didnt see anything about that I found a temporary fix, i just rev the engine during warm startups, it...

Hello Muc, my engine S/N is 1A645849. My water pressure from about 3000-5200 is unaffected by rpm and fluctuates on the Rinda scan tool from 13-15 psi. The rpm for cold and hot starting is the same around 700rpm i think, cant remember the exact number but its non adjustable and within spec as i...

Hey group, my 2011 Crownline 21SS with a 6.2L 377 MAG w/cats, Bravo 1, is slow to build water pressure when engine is warmed up only. Takes over 15 seconds to exceed 1psi so it sets off the alarm and goes into gaurdian mode temporarily. Seems like theres not enough back pressure when the...

You will be very disappointed with that size boat and only 200hp. Its a total dog for water sports with any kind of load inside the boat. Get an older boat with a bigger engine if price is a concern.

did you ever get a resistor package for this pesky water sensor? Does the voltage increase or decrease as the water pressure rises? I'm still having problems at idle when the engine warms up, just not quite enough pressure to always keep the alarm off . Even though I replaced everything you can...

Hi gang, I need advice on repairs,I hit a stump and a one of the ears of the upper case broke off and now they want to replace the whole lower unit for 9000 bucks!!! The gimbal bellhousing was torn from the gimbal ring and a piece of the gimbal ring broke off at the bottom, and also a piece...

well the code of my techmate pro scan tool says low water pressure so if the pump housing and impeller and pressure sender are all new what else can i do? Its got tons of water flow and always runs cool. Recalibrate the computer?

My part number is 47-8M0104229.

OK so if the pump housing and impeller are new and so is the pressure sender, and it always runs cool and has tons of water flow, how do i keep the low pressure water alarm from sounding?

Ah ok its just a fitting with no moving parts. Gotcha. Well is 13psi enough pressure at 5000 rpm? What is the computer alarm set for any idea?

Yup its for gen 7. small shaft. Didnt the gen 2 and gen 4 have a bigger shaft? Or are there 2 different sizes for the small shaft design? So what about the distribution valve could it be stuck open and be allowing too much volume? Can it be repaired?

ah ok, so you had no increase in pump pressure from 3000-5000 rpm the same as me?

I bought a rinda techmate pro and found out my pressure is low at all rpm. It never goes above 13psi.from 3000-5000 RPM. Seems like i dont have enough back pressure. The pump housing is new and so is the impeller. Attached is a picture or the housing and impeller that has 20 hours on it and not...

I didnt realize theres another valve in the distribution housing on the port side. I think your on to something here. It acts like there is too much volume and not enough back pressure. Thats why i can never get enough pressure even at high RPMS. Its the only thing I HAVENT changed. Is it...

Yes sir i just replaced that spring with a new one, old one looked fine. I have the 3 point system as pictured above. Ran the boat again today and checked the PSI at every engine speed and noticed something very odd. The pressure never goes above 13psi from 3000-5000 rpm. The number fluctuates...

i will run it today and see what the cruise psi is, im sure its not that high though. I think its 3 point drain i see hoses coming off the block only. You think its a problem between the lower unit and pump? The shop said it had lots of water flow but maybe that was just subjective.