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  • Chapter 7: Aircraft Systems › Oil Systems

    Oil Systems The engine oil system performs several important functions: • Lubrication of the engine’s moving parts • Cooling of the engine by reducing friction • Removing heat from the cylinders • Providing a seal between the cylinder walls and pistons • Carrying away ... contaminants Figure 7-17. Wet-sump oil system. Reciprocating engines use either a wet-sump or a dry-sump oil system. In a wet-sump system, the oil is located in a sump that is an integral part…

  • Chapter 11: Light-Sport Aircraft Engines › Lubrication System › Oil Change

    Oil Change It is advisable to check the oil level prior to an oil change, as it provides information about oil consumption. Run engine to warm the oil before beginning the procedure. Taking proper precautions, crank the engine by hand ... transfer the oil from the crankcase. Remove the safety wire and oil drain screw (1) from the oil tank, drain the used oil, and dispose of as per environmental regulations. [Figure 11-32] Remove and replace oil filter at each…

  • Chapter 8: Engine Removal & Replacement › Preparation of Engine for Ground & Flight Testing › Pre-Oiling

    Then, a line must be disconnected, or an opening made in the oil system at the nose of the engine, to allow oil to flow out of the engine. Oil flowing out of the engine indicates the completion ... oiling operation, since the oil has now passed through the entire system. Figure 8-12. Pre-oiler tank. In order to force oil from the pre-oiler tank through the engine, apply air pressure to the oil in the tank…