I can’t run the boat for a couple of days but I don’t recall the oil pressure being low the last time I ran it. It has a digital display that I usually step through to check things when on a test ride.
if I knew how to silence the alarm I would. I did find a reference to a lower unit oil change alarm that can only be reset out of the water. The shop changed the lower unit oil but I don’t know if they reset the alarm or if this boat even has it. No available trailers and a boat ramp 3 miles from the dock complicates my life a bit.
The original shield and drive, unless changed to something else, is an TSK and SX-A, single prop. Not equipped with an “oil change alarm” or any other alarm. The alarm you refer to is available on the OceanX drive. The two OceanX alarms are described in your manual (water in bellows, and water in oil/low drive oil), but don’t apply to a TSK and SX-A.
From the top, with key on and engine off, your set-up, if functioning properly, emits three short beeps. This is the self check being performed. If nothing following, there are no active codes or faults.
Your set-up has three primary alarms; low oil pressure, high engine coolant temperature and high exhaust temperature. Secondary alarms are emissions related. Then, depending on your gauge package, there might be user set/adjustable water depth and fuel (each separate from engine alarms).
The only constant alarm is low oil pressure. This could result from not enough oil, too much oil, wrong oil or high engine temperature. The alarm for high engine temperature is either a beep about every 1/2 second or once per second (severe). The alarm for high exhaust temperature is the same.
Secondary alarms can be one and done or a periodic beep. These are accompanied a check engine message (depending on gauge package), or engine outline illuminated or circle with triangle illuminated if equipped with the VP engine status panel.
Given these motors are catalyzed, either a visit from a qualified technician equipped with Vodia, or if independent, Diacom and the correct pigtail, so the ECM can be scanned, codes/history reviewed, data collected and tests performed. An alternative, if you have a laptop, interest and time, purchase Diacom from Rinda Technologies and post the data files here so they can be reviewed and further help provided.