Marine Engine Maintenance and Troubleshooting Q&A

Posted by on Jan 27, 2025 in Mechanical Manufacturing | 0 comments

1. Why Do We Have Tappet Clearance?

For thermal clearance.

2. What Does Scavenge Mean?

Using fresh air to remove spent gases.

3. Name Two Types of Engine Sensors and Their Operation?

  • Temperature
  • Pressure

4. TDC Is Used as a Base

Reference point for exhaust inlet valves and fuel injection.

5. What Does Reduction Mean with Regard to a Gearbox?

The use of a smaller gear to turn a larger one.

6. Explain the Difference Between 2-Stroke and 4-Stroke Cycles

A two-stroke engine is lighter, less efficient, and fuel

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