LUBRICATION SYSTEMS (Jepp/Prep/Crane);Questions and Answers
LUBRICATION SYSTEMS (Jepp/Prep/Crane);Questions and Answers A reciprocating engine is found to have excessive oil consumption without evidence of any oil leaks. What is the likely cause? The piston rings are worn or broken. What are the functions of lubricating oil in reciprocating engines? To reduce friction between moving parts and remove heat. Name two important characteristics of aircraft engine oil. The oil must be light enough to circulate freely yet heavy enough to provide the proper oil film at engine operating temperatures. What could happen to an oil that is too low in viscosity at normal engine operating temperatures? It may become so thin that the oil film between moving parts is easily broken, resulting in premature wear
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