Main engine starting problems on ship

Engine fails to turn:

Reasons:

• Pressure in starting air receiver too low.

• Any valve shut in the starting air system Starting air distributor malfunctioning.

• Turning gear engaged.

• Interlock switch of turning gear defective.

• Starting air valves in Cylinder covers defective.

Remedies:

• Check the functioning of compressors.

• Check and open the valve.

• Identify and rectify the fault.

• Disengage the turning gear.

• Replace the interlock switch.

• Pressure test the valves.

• Replace or overhaul defective valves.

Engine does not reverse:

Reasons:

• The control air signal, for reversing has not reached the engine.

Remedies:

• Find the defective valve or component which blocks the signal.
• Repair or replace the valve.

Engine stops:

Reasons:

• Engine automatically shuts down.

• Manoeuvring gear is sluggish.

• Fault in governor.

Remedies:

• Check the parameters and identify the reason for the shutdown. Reset shut down.

• Lubricate the manoeuvring gear. Ensure that fuel pumps, rod connections and bearings are movable.

• Identify and rectify the fault.

Engine runs unevenly:

Reasons:

• Auxiliary blowers not functioning

• Fuel filter clogged

• Fuel pressure too low

• One or more cylinders not firing

Remedies:

• Start auxiliary blowers.

• Clean the filter.

• Increase the pressure.

• Check the fuel pump and fuel injectors.