Which outcome occurs when excessive thermal stress weakens a marine diesel engine crankshaft?

💡 Explanation

Increased torsional vibration occurs because crankshaft fatigue results in reduced stiffness, promoting resonance near operational frequencies. Therefore, vibration increases, rather than injector timing drifting or other performance metrics remaining stable after material fatigue presents and the *torsional vibration* accelerates.

• Which outcome occurs after a positive displacement pump experiences a sudden blockage in the discharge line during operation?
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