A timing belt, timing chain or cam belt is a part of an internal combustion engine that controls the timing of the engine’s valves. the timing belt connects the crankshaft to the camshaft(s), which in turn controls the opening and closing of the engine’s valves.
The following schematic diagram shows detail illustration of Mitsubishi 4D55 Diesel Engine Timing Belt which consists of 1.Timing Belt Upper Cover, 2.Camshaft Sprocket, 3.Tensioner Spacer, 4.Tensioner Spring, 5.Washer, 6.Timing Belt Tensioner, 7.Bolt, 8.Special Washer, 9.Crankshaft Pulley, 10.Timing Belt Lover Cover, 11.Access Cover, 12.Crankshaft Sprocket, 13.Timing Belt, 14. Flange, 15. Injection Pump Sprocket.