Mercury 60 ELPT low oil pressure

[supereri73]

I just bought a used 2017 Bass Buggy with a Mercury 60hp ELPT motor. We took it out last weekend and it ran great. But I had an alarm. I was running up the lake and when I backed the throttle down to idle I got an alarm for about 10 seconds. Vesselview showed an alarm, but without internet connectivity I couldn't tell what the alarm was for. It did this 2 other times when coming back down to idle.

When I got home I was able to look up the fault and it showed low oil pressure. I checked the oil quantity and it was fine. The engine only has 53 hours since new. I went ahead and changed the oil and filter. Went back out on the lake and the same thing happened again.

I have a new oil pressure switch to put in, but wonder what else I can try/check before going back out.

Any ideas?

Thanks in advance for the help.

 

[Swagonmaster]

I would want to put a mechanical oil pressure gauge on it to see how much oil pressure you really have and that would include at rpm as well as idle. There should be a spec for higher rpm and a minimum at idle, if it's not there at speed it won't be there at idle. Also and maybe even first, make sure your idle speed is correct.