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  • Chapter 6: Lubrication & Cooling Systems › Engine Cooling Systems › Cylinder Baffle & Deflector System Inspection

    differential between the top and the bottom of the engine forces the air past the cylinders through the passages formed by the deflectors. The baffles and deflectors normally are inspected during the regular engine inspection, but they should be checked ... should be made for cracks, dents, or loose hold down studs. Cracks or dents, if severe enough, would necessitate repair or removal and replacement of these units. However, a crack that has just started can be stop-drilled, and dents…

  • Chapter 1: Aircraft Engines › Cylinders › Cylinder Numbering

    Cylinder Numbering Occasionally, it is necessary to refer to the left or right side of the engine or to a particular cylinder. Therefore, it is necessary to know the engine directions and how cylinders of an engine are numbered ... seen from this position, crankshaft rotation is referred to as either clockwise or counterclockwise. Inline and V-type engine cylinders are usually numbered from the rear. In V-engines, the cylinder banks are known as the right bank…

  • Chapter 6: Lubrication & Cooling Systems › Engine Cooling Systems › Reciprocating Engine Cooling System Maintenance

    Reciprocating Engine Cooling System Maintenance The engine cooling system of most reciprocating engines usually consists of the engine cowling, cylinder baffles, cylinder fins, and some use a type of cowl flaps. In addition to these major units, there are also ... some temperature-indicating systems, such as cylinder head temperature, oil temperature, and exhaust gas temperature. The cowling performs two functions: 1. It streamlines the bulky engine to reduce drag. 2. It forms an envelope around the engine that forces…

  • Chapter 6: Lubrication & Cooling Systems › Engine Cooling Systems › Reciprocating Engine Cooling Systems

    Engine Cooling Systems Excessive heat is always undesirable in both reciprocating and turbine aircraft engines. If means were not available for its control or elimination, major damage or complete engine failure would occur. Although the vast majority of reciprocating engines ... cooled, some diesel liquid-cooled engines are being made available for light aircraft. [Figure 6-49] In a liquid-cooled engine, around the cylinder are water jackets, in which liquid coolant is circulated and the coolant takes away the excess…

  • Chapter 3: Induction & Exhaust Systems › Reciprocating Engine Induction Systems › Supercharged Induction Systems

    Induction System Troubleshooting Figure 3-8 provides a general guide to the most common induction system troubles. Supercharged Induction Systems Since aircraft operate at altitudes where the air pressure is lower, it is useful to provide a system for compressing ... fuel mixture. Some systems are used to normalize the air pressure entering the engine. These systems are used to regain the air pressure lost by the increase in altitude. This type of system is not a ground boost system…