ABSTRACT
This chapter discusses the decisions originally taken by the engine designer regarding the dimensional, geometrical, and tolerances of the contacting working surfaces of the neighboring parts, type of fit, materials of those parts, and their surfaces treatments would markedly affect the reliability, durability, performance, and life of the engine. Thus, the various metrology equipment and tools available for the dimensional and geometrical features measurements play an important role in the inspection and testing processes of automotives. The chapter describes a developed program to inspect and investigate crucial engine parts during an overhaul using advanced metrology measurement devices such as coordinate measuring machine (CMM), and charge-coupled device (CCD) camera. It tabulates the overall specifications of the overhauled engine under investigation used to demonstrate the developed inspection program. The chapter also depicts locations and paths of CMM measurements conducted on the bore of replaced cylinder liners newly fitted in the cylinder block.
