3RD Engineer Interview Questions and Answers

To solve overheat problem in marine engine, ensure proper cooling system maintenance, monitor temperature regularly, check for blockages in cooling system, and adjust engine load if necessary.

• Regularly monitor engine temperature to detect overheating early

• Ensure proper maintenance of cooling system to prevent overheating

• Check for blockages in cooling system that may be causing overheating

• Adjust engine load if necessary to reduce heat generation

Causes of overheat in a marine engine include cooling system issues, lubrication problems, and fuel combustion issues.

• Cooling system issues such as clogged cooling lines or malfunctioning water pump can lead to overheating

• Lubrication problems like low oil levels or poor quality oil can cause increased friction and heat

• Fuel combustion issues such as incorrect fuel-air ratio or dirty fuel injectors can result in overheating

Decarbonization of main engine is done by removing carbon deposits from the engine components.

• Shut down the main engine and let it cool down

• Remove the cylinder head and piston

• Clean the carbon deposits using specialized tools

• Inspect the components for any damage

• Reassemble the engine and start it up for testing