Mazda 626

1991-1998 of release

Repair and car operation



Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines (1,6 and 1,8 liters)
   + 3.2. Petrol 4-cylinder engine (2 liters)
   + 3.3. Petrol V6 engine (2,5 liters)
   + 3.4. Partition of engines (1,6 and 1,8 liters)
   - 3.5. Partition of engines (2,0 and 2,5 liters of V6)
      3.5.1. Introduction
      + 3.5.2. Technical characteristics
      3.5.3. Repair work without engine dismantle from the car
      + 3.5.4. Major maintenance of the engine
      3.5.5. Check by means of a vacuum measuring instrument
      3.5.6. Compression check
      3.5.7. Methods of dismantle of the engine
      3.5.8. Removal and engine installation
      3.5.9. Engine partition
      3.5.10. Partition and check of a head of cylinders
      3.5.11. Valves
      3.5.12. Assembly of a head of cylinders
      3.5.13. Removal of pistons and rods
      3.5.14. Removal of a cranked shaft
      3.5.15. Check of the block of cylinders
      3.5.16. Honingovaniye of cylinders
      3.5.17. Check of pistons and rods
      3.5.18. Check of a cranked shaft
      3.5.19. Check and selection of radical bearings and bearings of rods
      3.5.20. Check of camshafts and pushers
      3.5.21. Engine assembly order
      3.5.22. Installation of piston rings
      3.5.23. Installation of a cranked shaft
      3.5.24. Installation of a back epiploon of a cranked shaft
      3.5.25. Installation of pistons and rods
   + 3.6. Diesel engine of 2,0 liters
   + 3.7. Systems of electric equipment of the engine
+ 4. Heating and ventilation
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electroschemes
+ 14. Good advice



3.5.8. Removal and engine installation

GENERAL INFORMATION

If you remove the engine for the first time to you it is necessary to prepare for this purpose a room, it is desirable equipped with the lift. You need the assistant, in an ideal the person possessing special knowledge and having experience. It is necessary as to prepare all necessary tools and to observe all necessary precautionary measures during carrying out this difficult procedure.

Removal


Prevention

It is recommended to remove the engine together with a transmission, and only then to disconnect a transmission from the engine.

The models described in this management, are equipped with airbags. Before the beginning of works surely disconnect system of airbags to avoid their sudden disclosure.

At work with elements of fuel system observe fire safety regulations.


PERFORMANCE ORDER
1. Lower pressure in fuel system.
2. Disconnect a wire of the minus plug of the accumulator.
3. Remove the accumulator and its arm.
4. Remove a cowl.
5. Remove the air filter and gryazeotrazhayushchy guards.
6. Lift and fix a forward part of the car. Merge cooling liquid and engine oil. Remove driving belts.
7. Disconnect vacuum hoses, hoses of cooling liquid, hoses of final system, a wire and fuel tubes. Mark all disconnected parts not to mix them during carrying out installation.
8. Remove cooling fans of a radiator, a casing of fans and a radiator (cм. subsection 4.4). Disconnect from the engine the top and bottom hoses of a radiator and hoses of a radiator of a heater.
9. Disconnect fuel tubes from the engine and close them caps.
10. In 4-cylinder models remove an arm of an inlet collector.
11. Remove a starter.
12. Remove a pulley of a cranked shaft.
13. In 4-cylinder models remove the generator.
14. Disconnect ropes of various systems from the engine.
15. Disconnect a fork (And) and grounding wires (In) a plait of wires of the engine.
16. Disconnect temperature sensors and the sensor of a cranked shaft. Remove an arm of a plait of wires of the engine (shooter) and arrange it aside.
17. In 4-cylinder models disconnect wires from the breaker distributor of ignition (And), from fuel injectors (In). Weaken clamps (C) and disconnect a plait of wires from the engine.
18. Remove the pump of system of hydrostrengthening of a steering (without disconnecting from the pump hoses) and arrange it away from the engine.
19. Remove the compressor of the air conditioner (do not disconnect from the compressor coolant hoses) and arrange it away from the engine.
20. Disconnect a wire of the oxygen sensor. Disconnect final (ые) a pipe (ы) from final (ых) a collector (ов). Remove a cross-piece and lower an exhaust pipe.
21. In 6-cylinder engines remove the oil filter, disconnect hoses from an oil radiator and remove a radiator.
22. Fix the engine on the lift. Connect the lift to two ears (arrow). Slightly raise the engine.
23. In 4-cylinder models with an automatic transmission remove the right leading semi-axis and disconnect the dustproof screen of the hydrotransformer from the lower part of a casing of a transmission. Unscrew the bolts, fixing the hydrotransformer to a leading disk and accurately press the hydrotransformer into a transmission casing.
24. In all models with a mechanical transmission the engine acts in film together with a box therefore it is necessary to disconnect all wires and ropes from it. Remove semi-axes.
25. Unscrew bolts and braid nuts of forward and back support of the engine.
26. In 4-cylinder engines with an automatic transmission, unscrew the bolts, fixing a box to the engine, and disconnect the engine from a box. The hydrotransformer should remain in a box casing. In all other models the engine acts in film together with a transmission.
27. Check, that except the left and right support of the engine, more nothing stirred it to removal.
28. Unscrew bolts of the right and left support of the engine.
29. Accurately lift the engine on the lift and remove it from the car.
30. Lower the engine on specially equipped rack or on a workshop floor.

Installation

PERFORMANCE ORDER
1. Check a condition of support of the engine and a transmission if they are worn-out, replace them.
2. In engines with a mechanical transmission, examine elements of coupling and grease press the bearing.
3. In engines with an automatic transmission, examine laying and the plug of the hydrotransformer and grease its forward part.
4. Connect the engine and a transmission and tighten bolts.
5. Establish the engine and other details upside-down removals.