REPAIR MAINTENANCE OPERATION OF MOTOR VEHICLES
Mazda 626 (from 1991 to 1998, the year of issue)

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

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Mazda
	626
		Instructions
		Maintenance
		Engines
			Petrol engines (1,6 and 1,8 liters)
			Gasoline 4-cylinder engine (2 liters)
			Gasoline engine V6 (2,5 liters)
			A partition of engines (1,6 and 1,8 liters)
			Bulkhead engine (2.0 liters and 2.5 V6)
			The diesel engine of 2.0 liters
				Specifications
				Maintenance and repair
				The principle of operation of the diesel engine
				Toothed belt, setting the valve timing
				System preheat
				Checking device preheat
				Removal of air from fuel system
				Checking and replacing the fuel shut-off solenoid valve
				Check and adjustment of turns of idling
				Removal and installation of atomizers
				Removing vacuum pump
				Fault diagnosis of diesel engine power
			Systems of an electric motor
		Heating and ventilation
		Fuel system
		An exhaust system
		Transmissions
		Coupling and semiaxes
		The brake system
		Chassis
		Body
		Electrical
		Wiring
		Tips and Tricks

printable version

Checking device preheat

If you have difficulty starting the engine, you must first measure the engine compression. If the amount of compression is too small, at low temperatures, the engine will not start.

Check glow plugs

PERFORMANCE ORDER

1. Remove the spark plugs.
	2. Connect sequentially to each glow plug ohm meter and check the short circuit between the contacts of candles and the cylinder block.
3. If the resistance is not zero, the glow plug is defective and should be replaced.
	4. Remove the defective glow plug. Screw the new glow plug (3) and torque to 20 Nm Connect a wire (2) and tighten the nut (1).
A warning Do not exceed the specified torque, as otherwise it may be damaged pin plugs and plug prematurely fail. Make sure that the candle did not fall on oil or fuel. When burnt rods follow the instructions. If a defect is detected on, but the engine runs poorly, make an external inspection of the glow plug when the glow. To do this, remove the injectors and through holes watch the glow plugs on heating.
	5. When a glow plug with charred heating rods (arrow) is not enough to simply replace them. It is necessary in this case as well to check the nozzles on injection pressure and tightness.
6. burning rods glow is often the result of faulty injectors. Such injuries should not be ascribed to internal or external defect glow.

Check glow plug relay

PERFORMANCE ORDER

1. Remove the glow plug relay.
	2. Connect the switch to the battery with two wires. Connect an ohmmeter and check whether the terminals are closed.
3. If the terminals are not closed, replace the relay.

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System preheat

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Removal of air from fuel system