- Jan 26, 2008
- 2,839
- Boat Info
- SOLD 2005 420 DA w/T-8.1S Horizons
- Engines
- 2018 Sea Hunt 255se w/Yamaha 300hp
Took our inaugural 2020 cruise today and ran into a problem. I started receiving a low PSI warning on the smartcraft for the starboard engine. About every minute it would sound the peeper a couple of times. Looking at the smartcraft gauges it was showing 52.7 psi at all RPM's while the port would fluctuate as expected.The analog gauge was at exactly 50 PSI but I don't think that could be trusted because it stayed exactly there regardless of whether engine was idling or under load at 3400 RPM's. Also, if the engine was switched on but not started the gauge would jump to 50 immediately.
I shut the boat down and checked the oil in both motors. Both were at the perfect level and the oil was as clean as if I'd poured out from the bottle. Both engines were running the same and expected temperature and were pumping the expected amount of cooling water. Nothing smelled odd.
I'm assuming at this point that there's nothing fundamentally wrong with the motor and that it's getting the oil it needs. From what I've read I'm guessing that one, or both, oil pressure sending units have failed, although it's a bit suspicious it'd be both.
Anyone with any experience with this have any insight as to whether I'm on the right path? Also, which sending unit to replace first? If that's it at all?
I shut the boat down and checked the oil in both motors. Both were at the perfect level and the oil was as clean as if I'd poured out from the bottle. Both engines were running the same and expected temperature and were pumping the expected amount of cooling water. Nothing smelled odd.
I'm assuming at this point that there's nothing fundamentally wrong with the motor and that it's getting the oil it needs. From what I've read I'm guessing that one, or both, oil pressure sending units have failed, although it's a bit suspicious it'd be both.
Anyone with any experience with this have any insight as to whether I'm on the right path? Also, which sending unit to replace first? If that's it at all?
