Exam Question

With regard to large 2 stroke engine:

(a) Explain, how can the cooling spaces within a cylinder jacket be examined without withdrawing the cylinder liner?

(b) To what parts of a cylinder jacket would you give attention after removing an old cylinder liner prior to fitting a new one?

(c) What periodic attention must be given to the scavenge air space and piston-rod packing (stuffing box) at the bottom of a cylinder liner?