Class 4 (4th Engineer) MEKM 📅 Sep 2024

Exam Question

With reference to cylinder liner wear in large slow speed engine.

(a) State THREE major factors associated with wear. (4)

(b) Explain the procedure for correct 'running in' of piston rings and cylinder liners. (4)

(d) Describe how cylinder lubrication limits wear. (4)

Reference Answer

Cylinder liner wear in large slow-speed engines is a critical concern for operational reliability, maintenance costs, and engine longevity. Understanding its causes and mitigation strategies is paramount for marine engineers.
**(a) State THREE major factors associated with wear.**
The three major factors associated with cylinder liner wear in large slow-speed engines are Abrasive Wear, Corrosive Wear, and Adhesive Wear (Scuffing).
* **i. Abrasive Wear:**

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