Q: Explain the procedure used for removal of a worn cylinder liner(assume the piston has already been withdrawn).
A: All lifting equipment is examined to ensure it is in certification and free from any defects.
The cooling water will have been drained from the jacket prior to removal of the cylinder head and piston.Assuming that the piston and con rod withdrawn,protect the crankpin with suitable material.Cylinder lubricators are disconnected and quills, if used withdrawn.
The liner must be initially moved by jacking it from its seating. This is because if it is stuck on its seating faces it is possible to exceed the safe working load of the lifting equipment. A simple method using is illustrated opposite.
Once the liner is moving freely the engine room crane is attached to the strongback and the liner lifted clear of the engine frame and landed safely and secured
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