REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 3 (2003 release)

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Mazda
	3
		Operation and maintenance of car
		Engine
			General description new engines models L8, LF, L3
				The mechanical part of engines
					Cylinder head cover
					Cylinder Head
					Cylinder head gasket
					Cylinder block
					The crankshaft and main bearing
					Balancing unit
					The principle of operation of the balancing unit
					Vibration damper crankshaft
					Engine Front Cover
					Piston
					Piston rings and piston pin
					The connecting rod and connecting rod bearing
					The valve mechanism - general information
					Camshaft
					Camshaft sprocket
					Crankshaft sprocket
					Timing chain drive
					Chain tensioner timing
					Valve, valve springs, valve stem seal, Valve Guides
					Tappet
				Variable valve timing mechanism
				Lubrication system
				Cooling system
				Fuel system
				Exhaust and Emission
				Electric motors
			The mechanical part of engines
			Appendix 1
			Annex 2
			Appendix 3
			Engine Z6 - mechanical part
			Lubrication system
			Cooling system
			Intake system
			Fuel system
			Exhaust and Emission
			Ignition system
			Control system
			Tables
		Transmission
		Chassis
		Steering Gear
		Brakes
		Onboard electric
		Body

printable version

Crankshaft sprocket

Fig. 2.24. Crankshaft sprocket: 1 - an asterisk of the oil pump; 2 - star valve timing; 3 - the front part of the engine; 4 - outer diameter; 5 - the width of the tooth

Sprocket crankshaft made of high chromium steel. The working surface of the teeth is hardened to improve the abrasion resistance at all points of contact with the chain. Crankshaft sprocket consists of a chain drive sprockets, timing and oil pump drive sprocket, which are combined into a single unit. Used for mounting sprocket keyway is absent (Fig. 2.24).

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Timing chain drive