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

3.5.15. Check of the block of cylinders

1. Turn caps in openings, having struck with a stupid core by a lateral part of each cap.
2. Take plastic caps from the block.
3. By means of a plastic scraper clean off all traces of hermetic from a being joined surface of the block of cylinders.
4. Unscrew or drill caps of oil channels from the block of cylinders. Use new caps during assembly.
5. If too dirty, it it is necessary to clean the block in a specialized workshop.
6. Clean and wash out oil openings and channels warm water. Dry openings and channels, having blown them the compressed air. Grease the block with anticorrosive oil.
7. Clean carvings of openings in the block by means of taps of the necessary size. Clean bolts of a head of cylinders and bolts of radical bearings.
8. Establish covers of radical bearings and twist bolts.
9. By means of the special tool hammer new, greased with hermetic, caps into block openings.
10. Put hermetic on caps of oil channels and twist them in the block.
11. Examine the block on existence of cracks and corrosion or rust traces. Examine carvings of openings of the block. At detection of defects, it is necessary to repair or replace the block whenever possible.
12. Examine cylinders.
13. Check cylinders on a konusnost and ovality.
14. Measure diameter of each cylinder in the top average and bottom its parts, parallel to an axis of a cranked shaft.
15. Measure diameter of each of cylinders perpendicular to the central line (And) and parallel to the central line (In) (1 – the central line of the engine)
16. Measure diameter of the cylinder by means of a telescopic measuring instrument.
17. Measure length of a telescopic measuring instrument by means of a micrometer.
18. Measure diameter of each cylinder in the top average and bottom its parts, perpendicular to an axis of a cranked shaft.
19. The Konusnost of the cylinder is calculated as a difference between top and bottom in diameters. Ovality – as a difference between parallel and perpendicular measurements.
20. If the received results do not coincide with technical requirements (subsection 3.5.2.), cylinders are necessary for processing in a specialized workshop.

21. By means of a ruler and щупов check, whether the surface of the block which is joining to a head is deformed.
22. Check wear of pistons and cylinders with the help щупов. When finding wear or damages at block survey, address to experts.