Exam Question
Describe the process of replacing the cylinder liner in an auxiliary engine. How is water tightness ensured and what precautions are taken before commissioning the engine? (16)
Class 4 (4th Engineer)
MEKM
📅 Aug 2022
Reference Answer
### **1. Introduction and Preparatory Work**
A cylinder liner forms the cylindrical space in which the piston reciprocates. Replacement is necessary due to factors such as excessive wear (ovalisation and conicity beyond limits), deep scoring, scuffing, cracking, or severe corrosion. The process requires precision, adherence to manufacturer's procedures, and meticulous cleanliness.
**Preparatory Steps:**
* **Permit to Work:** Obtain a permit from the Chief Engineer, and conduct a toolbox talk with the team.
A cylinder liner forms the cylindrical space in which the piston reciprocates. Replacement is necessary due to factors such as excessive wear (ovalisation and conicity beyond limits), deep scoring, scuffing, cracking, or severe corrosion. The process requires precision, adherence to manufacturer's procedures, and meticulous cleanliness.
**Preparatory Steps:**
* **Permit to Work:** Obtain a permit from the Chief Engineer, and conduct a toolbox talk with the team.
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