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Q1. A). Describe the procedure for opening a bottom end bearing for inspection making reference to the positioning of the crank and the safety precautions to be observed.

B). State how the bearing clearance may be checked and adjusted when necessary

C). State TWO defects, which may be encountered during inspection of the bottom end bearing and crankpin giving possible causes of EACH.

D). State TWO checks, which should be made before returning the engine to service following overhaul of the bottom end bearing.