REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 323 (1985 release)

general info. full specifications. diagnostics. hints. tips. tricks

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Mazda
	323
		Introduction
		Gasoline engines
			Specifications
			Removing and installing engine
			Removal and installation of a gear belt of engines VZ, B5, B6 (SOHC), BP (SOHC)
			Removing and installing toothed belt (DOHC)
			Removal and installation of the cylinder head / cylinder head gasket replacement
			The mechanism of chain drive
			Removing and installing the camshaft / camshaft adjustment
			Removal and installation of a camshaft
			Camshaft / timing gear
			The camshaft / camshaft drive mechanism
			Removal and installation of camshafts
			Removal and installation of valves
			Replacing valve stem seals
			Checking the valve guides
			Chamfering the valve seats in the cylinder head / IT valves
			Lapping Valves
			Checking / adjusting valve clearance
			Compression Test
			Removing and installing / belt tension
		Engine oil
		Engine cooling system
		Ignition system
		The power supply system, the carburettor, fuel injection system
		Diesel engine
		Exhaust
		Coupling
		Manual gearbox
		Automatic Transmission
		Suspension and steering system
		Brakes
		Wheels and tires, a body, car coloring, care of the car
		Electrical system
		Heater, illumination system, devices
		Controls and operation receptions
		Electrical diagrams

Lapping Valves

PERFORMANCE ORDER

Even impeccably treated valve seats and new valves must be lapped to each other for optimum sealing. It should be taken into account especially in diesel engines.

Valves can only get ground fine grinding paste. To rotate the valve is installed on the plate sucker. Education grooves in the lapping can be avoided, often pulling and turning the valve further.

After lapping, grinding paste should be removed completely.

Lapping process is controlled by applying to the contact surface "Preussischblau" or "Bleiweiss", and by the fuel. Insert valves to fill the combustion chamber, fuel should flow to the valve guide. Otherwise, the process should be repeated lapping.