What Should You Do if a Marine Diesel Oil Pressure Alarm Comes On? #
Oil pressure is essential for protecting bearings and other moving components inside a marine diesel engine.
An oil-pressure alarm should therefore always be taken seriously.
What Can Cause an Oil Pressure Alarm? #
Possible causes include:
- Low engine oil level
- Oil leakage
- Lubrication-system problems
- Internal engine wear
- Failed oil-pressure sensor
- Damaged wiring
- Electrical connection problems
A warning can be caused by either a genuine mechanical condition or a problem within the monitoring system.
Is It Just a Bad Sensor? #
Possibly.
Sensors can fail and wiring faults can create inaccurate readings.
However, assuming the warning is false before verifying actual oil pressure can be extremely risky.
Whenever possible, the reported pressure should be compared with the engine’s actual mechanical condition.
Avoid Continued Operation With Low Oil Pressure #
If the engine genuinely has insufficient oil pressure, continued operation can rapidly damage internal components.
Safely reduce load and shut the engine down as appropriate until the condition is understood.
Repeatedly resetting the alarm without diagnosing the cause can turn a smaller problem into a major engine repair.
All Tech Diesel provides Marine Diesel Engine Diagnostics and Emergency Mobile Marine Diesel Service throughout Southwest Florida.
