Mazda 626

1991-1998 of release

Repair and operation of the car



Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   - 3.1. Petrol engines (1,6 and 1,8 liters)
      3.1.1. Introduction
      3.1.2. Technical characteristics
      3.1.3. Recommendations about repair
      3.1.4. Top dead point
      3.1.5. Cover of valves
      3.1.6. Inlet collector
      3.1.7. Final collector
      3.1.8. Gas-distributing belt and asterisks
      3.1.9. Camshaft epiploons
      3.1.10. Yokes and distributive shaft
      3.1.11. Springs of valves, fastenings and laying
      3.1.12. Head of cylinders
      3.1.13. Oil pallet
      3.1.14. Forward cover
      3.1.15. Oil pump
      3.1.16. Forward epiploon of a bent shaft
      3.1.17. Flywheel
      3.1.18. Back epiploon of a bent shaft
      3.1.19. Fastenings of the engine
   + 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)
   + 3.6. Diesel engine 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 half shafts
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electrical circuitries
+ 14. Useful tips


3.1.5. Cover of valves

Removal

PERFORMANCE ORDER
1. Disconnect a wire of the minus plug of the accumulator.
2. Disconnect the valve of ventilation of a case of the engine and ventilating hoses from a cover of valves.
Models of 1,6 l
3. Disconnect wires of spark plugs from clips.
4. Unscrew two top bolts of a cover of a gas-distributing belt (SOHC) and weaken the lower bolts of a cover of a gas-distributing belt.
5. Unscrew bolts of a cover of valves (SOHC).
6. Uncover valves a head of cylinders.
7. Examine laying of a cover, if necessary replace it.
Models of 1,8 l
8. Mark wires of spark plugs and disconnect them from candles.
9. Remove the ignition distributor together with wires.
10. Unscrew bolts of the top cover of a gas-distributing belt and uncover.
11. Unscrew bolts of a cover of valves and uncover.

Installation

PERFORMANCE ORDER
Models of 1,6 l
1. Put a sealant layer in a cover flute, establish laying of a cover of valves (SOHC) in a flute.
2. Establish a cover of valves, insert bolts and tighten them.
Models of 1,8 l
3. Clean off traces of old laying, put a sealant layer in a flute of a cover of valves (SOHC), establish laying in a flute.
4. Apply silicone sealant on the shaded areas of a head of cylinders (1,8 l of DOHC).
5. Establish a cover, insert bolts and tighten bolts a hand.
6. Tighten bolts in stages in the specified sequence.



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