ENGINE LUBRICATING SYSTEMS
OBJECTIVE: Identify types of lubricating (oil) systems. Point out their operational
characteristics and maintenance requirements.
combustion engines are equipped with an internal lubricating system (fig. 6-17).
Without lubrication, an engine quickly overheats and its working parts seize due to
excessive friction. All moving parts must be adequately lubricated to assure maximum wear
and long engine life.