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)
				Introduction
				Specifications
				Recommendations for repair
				The top dead point of the first piston
				Cylinder head cover
				Springs, fasteners and gaskets Valve
				Gas distribution belt and sprocket
				Camshafts and tappets
				Intake manifold
				Exhaust manifolds
				Cylinder heads
				Front crankshaft oil seal
				Sump
				Oil pump
				A flywheel or a leading disk
				Crankshaft rear oil seal
				Engine Mounts
			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
			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

Exhaust manifolds

A warning

The engine must be completely cool.

Withdrawal

PERFORMANCE ORDER

1. Disconnect the negative battery terminal.
2. Apply penetrating oil fastening the exhaust manifold.
3. Disconnect the oxygen sensor.
4. Disconnect the recirculation of exhaust gases from the rear exhaust manifold and cylinder head.
	5. Twist the nuts securing the exhaust pipe to the front and rear exhaust manifolds.
	6. Remove the bolts insulating boards of both collectors.
	7. Remove the bolts securing the exhaust manifold to the cylinder head and remove collectors.
8. Examine the manifolds for cracks and other damage.

Setting

PERFORMANCE ORDER

1. Carefully clean joined surfaces of the cylinder heads and manifolds. Check the degree of deformation of the mating surfaces of the reservoir. If the deformation exceeds the permissible limits, the collectors must be machined in a specialized workshop.

2. Install the new pads collectors.

3. Install the manifolds and tighten the bolts and nuts collectors.

4. Install the remaining parts.

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Intake manifold

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Cylinder heads