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

3.5.25. Installation of pistons and rods


Arrangement of trailer gaps of the bearing

1. Forward part of the engine

2. Top part of the piston

A.Zazor of the top kompressionny ring

B. Gap of the second kompressionny ring

C. Gaps of maslosjemny rings

D. Gap of a broad ring

Check of a lubricant gap of shatunny bearings

1. Clean the top loose leaf of the bearing of a rod and establish it on a rod. Lubricant openings of a rod and the loose leaf should be combined.
2. Clean the second loose leaf and establish it in a rod cover.
3. Arrange trailer gaps of piston rings as is shown in drawing.
4. Grease pistons and rings and compress piston rings by means of the compressor of piston rings.
5. Turn a cranked shaft so that the shatunny bearing of the first cylinder was in the family way the bottom dead point, and grease cylinder walls.
6. Check, that the mark from above the piston was turned forward.
7. Press on the piston and establish it in the cylinder.
8. 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 it - to use a special plastic measuring instrument.
9. After piston installation in the cylinder, tighten bolts of covers of rods, and check a lubricant gap of the shatunny bearing. Put plastic pieces on each of bearings of rods parallel to an axis of a cranked shaft.
10. Compare width of the crushed film to a special scale.
11. If size of a gap do not correspond demanded, possibly, loose leaves of the wrong size are established.

Final installation of pistons and rods

1. Remove all traces of plastic. Check, that the surface of loose leaves was absolutely pure, and grease them with engine oil.
2. Establish a rod on a shaft neck, establish a cover of a rod and tighten nuts till the demanded moment of an inhaling.
3. Installation of other rods is carried out similarly.
4. After installation of all rods turn a cranked shaft several times and check ease of a course.
5. Check axial люфт rods.