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

3.5.20. Check of camshafts and pushers


1. To measure palpation of camshafts, address to the expert.
2. Examine necks of bearings of shaft on existence of scratches and wear tracks. If shaft are worn-out, replace them together with a head of cylinders. Measure diameters of necks of bearings.
3. Examine cams of shaft on wear existence. By means of a micrometer measure height of cams. If the size of wear of a cam exceeds admissible limits, replace a camshaft.
4. Measure lubricant gaps of bearings of camshafts by means of a plastic measuring instrument. If the size of a gap exceeds admissible limits, replace a camshaft and carry out repeated check. If the result remained the same, replace a head of cylinders.
5. Determine width of the crushed strip of plastic by the special table.


1. Examine surfaces of pushers on existence of wear, scratches and overheat traces. If one or several pushers are damaged, it is necessary to replace all pushers.
2. Measure external diameters of pushers and internal diameters of openings corresponding to them in a head. Take away diameter of a pusher from diameter of an opening, and you receive size of a lubricant gap. Calculate gaps of all pushers and compare them to technical requirements. If gaps of pushers exceed admissible limits, replace pushers or a head.