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)
      3.2.1. Introduction
      3.2.2. Technical characteristics
      3.2.3. Recommendations about repair
      3.2.4. Top dead point
      3.2.5. Cover of a head of cylinders
      3.2.6. Springs, clamps and epiploons of valves
      3.2.7. Gas-distributing belt and asterisks
      3.2.8. Camshafts and pushers
      3.2.9. Inlet collector
      3.2.10. Final collector
      3.2.11. Head of cylinders
      3.2.12. Forward epiploon of a cranked shaft
      3.2.13. Oil pallet
      3.2.14. Oil pump
      3.2.15. Flywheel or leading disk
      3.2.16. Back epiploon of a cranked shaft
      3.2.17. Engine fastenings
   + 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)
   + 3.6. 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
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3.2.8. Camshafts and pushers

Removal

Sequence of a tightening of bolts


PERFORMANCE ORDER
1. Uncover heads of cylinders.
2. Remove the ignition breaker distributor.
3. Remove a gas-distributing belt and asterisks of camshafts.
4. Measure a free wheeling of shaft by means of the special device. If the size of a free wheeling exceeds admissible limits, replace a camshaft or / and persistent plates or a head of cylinders.
5. Using sequence, return sequence of a tightening, weaken in some approaches (on 1/4 turns) bolts of covers of bearings of camshafts (see fig. Sequence of a tightening of bolts).
6. Remove covers and arrange them one after another. All covers should be numbered and marked by letters I (a cover of a shaft of inlet valves) or E (a cover of a shaft of final valves).
7. Remove a camshaft.
8. Take pushers by means of a magnet.
9. Arrange pushers one after another that in installation time not to mix them.

Prevention

Hydraulic pushers should be held overturned in pure engine oil.


10. Carefully clean camshafts and remove their epiploons.

Installation

PERFORMANCE ORDER
1. Put on pushers molybdenic greasing and establish them on places.
2. Put molybdenic greasing on cams and necks of bearings of camshafts.
3. Establish shaft in a head. Establish covers of bearings of shaft and insert bolts.
4. Before installation do not forget to put hermetic on the surface which was joined to a head of the first cover.
5. Using the specified sequence, tighten bolts of covers in stages (on 1/4 turns) (see fig. Sequence of a tightening of bolts).
6. Establish new epiploons of camshafts.
7. Establish the remained details and check operation of the engine. At the emergence, any extraneous sounds, inspect pushers (see subsection 3.1.10) or address to the expert.