Yanmar engine shutdown and oil!

[Bobby Beard]

Help!

New to me 2011 RT 27 with Yanmar.

First day out and engine dies pulling into slip. Won’t restart.

Lift hatch and check oil. It’s down around the first mark. Look in bilge and there is oil in bilge.

No warning, no buzzer, nothing on screen as to why it shut down.

Is it common for engine to shut down for low oil and not send up a buzzer or warning?

 

[Bruce Moore]

Bumping post delayed in moderation queue.

 

[glider4]

No, the Yanmar 4BY2 engines (both 150 and 180) have an extremely loud and annoying low oil pressure alarm at the helm. Think air horn next to your ear loud. Yanmar had a problem with grounding of the wires coming out of the $$$ proprietary Yanmar oil pressure sensor. The sensor is on top of the engine on the starboard side near the coolant fill cap. The alarm would go off when the grounding was interrupted even with full oil. Yanmar has technical bulletin on the issue. It was a very common problem. Another symptom of bad grounding was erratic oil pressure readings on the Yanmar helm display.
Perhaps your boats prior owner got tired of the false alarms and disconnected the sensor and/or alarm.
As to the oil leak, there was another service bulletin from Yanmar on bad oil hoses. Our 2009 R-25 Classic had a recalled oil hose started leaking after being repaired because the Everett marine shop cross threaded the new hose end doing the service bulletin repair.

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[4umfreak]

The BMW N47 which is the base engine for a 4BY2 has a known issue with the oil filter housing gasket. Maybe something to look into if you don't have a failed oil hose across the front of your engine.

https://www.forum5.co.uk/topic/1147-oil ... sket-leak/