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)
				Introduction
				Specifications
				Repair work without dismantle of the engine from the vehicle
				Engine Overhaul
				Check with a vacuum gauge
				Compression Test
				Methods for removing the motor
				Removing and installing engine
				ENGINE OVERHAUL
				A partition and check of a head of cylinders
				Valves
				Assembling the cylinder head
				Removal of pistons and rods
				Removing the crankshaft
				Checking cylinder
				Honing cylinders
				Check of pistons and rods
				Checking crankshaft
				Check and selection of radical bearings and bearings of rods
				Check the camshaft and pushers
				The order of assembly of the engine
				Installation of the piston rings
				Installing the crankshaft
				Installing the crankshaft rear oil seal
				Installation of pistons and rods
			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

Checking cylinder

PERFORMANCE ORDER

	1. Turn the plugs in the holes, hitting a blunt rod on each side of the cap.
	2. Remove the plastic plugs from the unit.
3. Use a plastic scraper clean off all traces of sealant from the junction surface of the cylinder.
4. Remove the cap and drill oil channels of the engine block. Use new plug during assembly.
5. If the unit is very dirty, it should be cleaned by a specialist workshop.
6. Clean and rinse the oil apertures and channels warm water. Dry holes and channels by blowing with compressed air. Grease block anti-corrosion oil.
	7. Clean the thread holes in the block by means of taps required size. Clean the cylinder head bolts and bolts of main bearing.
8. Install the crankshaft bearing caps and screw bolts.
	9. Use the special tool type in the new, lubricated sealant plugs in the holes of the block.
10. Apply sealant to plug the oil channels and screw them into the unit.
11. Inspect the unit for cracks and corrosion or rust. Inspect the thread holes of the block. If defects are found, the unit should be possible to repair or replace.
12. Inspect the cylinders.
13. Check the cylinders on the taper and roundness.
14. Measure the diameter of each cylinder in the upper middle and lower parts thereof, parallel to the axis of the crankshaft.
	15. Measure the diameter of each of the cylinders perpendicular to the center line (A) and parallel to the center line (B) (1 - the center line of the engine)
	16. Measure the diameter of the cylinder by means of a telescopic gauge.
	17. Measure the length of the telescopic meter using a micrometer.
18. Measure the diameter of each cylinder in the upper middle and lower parts thereof, perpendicular to the axis of the crankshaft.
19. The taper of the cylinder is calculated as the difference between the upper and lower diameters. Roundness - the difference between the parallel and perpendicular measurements.
20. If the results do not match the technical requirements (subsection 3.5.2.), The cylinders must be treated in a specialized workshop.
	21. Using a ruler and a probe check to see if the surface of the block, the junction with the head.
22. Check the wear on the piston and cylinder using a stylus. When you are worn or damaged during the inspection unit, refer to specialists.

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Removing the crankshaft

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Honing cylinders