Petrol injector. Cut away of turbo. Engines. Different diesel injector nozzles. Pintle injector nozzle. Diesel injector diagram. TEMPERATURE SENSOR. NTC. Thermo. Vane Pump. Cresent pump. Gear pump. Dry sump diagram. Wet sump diagram. Lubrication. Valve overlap diagram. Types of combustion champer. Combustion chamber design. Engines. Rotary Engine. Inline engine. W engine. Flat engine. Engine configuration.