Alarm Sounds in Rough Water

[NightWing]

Originally Posted by Rinkerguy

I have a 2003 Rinker w/ a Merc motor and Bravo3 drive
While navigating in rough water, the alarm occasionally sounds
Engine Temp, Oil pressure and Gear Lube levels are all acceptable

Very un-nerving

Any ideas as to cause and solution would be appreciated

I would bet your drive oil is a bit low and sloshing around, setting off the alarm. I had a boat do the same thing. Drove me nuts and it was only a little low.

[TomC]

...in any one of the 3 systems. I'm not sure how its designed and wired, but if is set up so a ground at the sensor sets off the alarm, you could have a chafed wire grounding on the block...

[Steve]

Originally Posted by NightWing

I would bet your drive oil is a bit low and sloshing around, setting off the alarm. I had a boat do the same thing. Drove me nuts and it was only a little low.

This is exactly what I was thinking, and I was thinking it's most likely the gear oil in the reservoir.

[Paugus Bay Resident]

Also, if the water pickup on the drive gets out of water, even momentarily, an alarm will usually go off.

[Cal]

Disconnect the alarm wires(tan with blue tracer) on the drive oil bottle and try it again. That's my bet

[NoRegrets]

I have also had an alarm go off in rough water. It was my high water bilge pump. The float would be jarred and set off the alarm. Check the floats as well as the other engine fluids like the previous posters....