With reference to the auxiliary engine big end bearing.
(a) State the various inspections done on the bearing shells, crank pin, serrations on the con-rod and bolts.
(5)
(b) How is the bearing assembled after inspection?
(4)
(c) Describe the various checks carried out after assembling the bearing.
(6)
Reference Answer
### (a) Inspections on Auxiliary Engine Big End Bearing Components Comprehensive inspections are critical to ensure the reliability and longevity of the auxiliary engine. The following checks are performed on the specified components: **1. Bearing Shells:** * **Visual Inspection:** Check the running surface for signs of wear and distress such as wiping (shiny, polished areas), scoring (deep scratches), pitting (small craters), and fretting (micro-movement causing surface wear). Look for embedded particles of foreign material.
Full answer on MeoMock — surveyor-grade reference answers for 7,000+ written exam questions.