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



3.5.23. Installation of a cranked shaft

GENERAL INFORMATION

Sequence of a tightening of bolts of covers of radical bearings (4-cylinder engines)

Sequence of a tightening of bolts of covers of radical bearings (6-cylinder engines)

Check of a lubricant gap of radical bearings

PERFORMANCE ORDER
1. Establish new loose leaves of radical bearings.
2. For measurement of a lubricant gap it is possible to use an internal micrometer or other special device, but the most exact and easy method is to use a special plastic measuring instrument.
3. Clear a cranked shaft, bearings and lubricant openings, then accurately establish a cranked shaft on bearings.
4. Put a plastic piece on each of radical bearings along a shaft axis.
5. Establish covers of radical bearings, trying not to shift plastic. Tighten fixing bolts of covers till the demanded moment of an inhaling in the specified sequence. Do not turn a cranked shaft.
6. Unscrew bolts and accurately remove covers.
7. Compare width of the crushed film to a special scale for determination of size of a lubricant gap.
8. If the size of a gap does not correspond to technical requirements, establish loose leaves of other size. If necessary bearings can be ground.
9. Carefully remove film traces from a shaft and bearings.

Final installation of a cranked shaft

PERFORMANCE ORDER
1. Accurately remove a cranked shaft.
2. Establish the top persistent half ring cuts outside.
3. Turn a half ring round a cranked shaft, having established it, thus, into place.
4. Clear a surface of loose leaves and grease them with greasing or engine oil.
5. Check, that bearings of a cranked shaft were pure, and establish a cranked shaft into place.
6. Grease and establish the bottom loose leaves.
7. In four-cylinder engines establish covers of radical bearings. Shooters of covers should be directed towards a forward part of the engine. Insert and tighten bolts of covers of all radical bearings till the demanded moment of an inhaling in the specified sequence.
8. In six-cylinder engines put hermetic on being joined surfaces of the block of covers. Establish the block. Insert and tighten bolts of the block of covers till the demanded moment of an inhaling in the specified sequence.
9. Turn a cranked shaft a hand several times and check ease of a course.
10. Check axial люфт a cranked shaft and establish a back epiploon.