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


4295d568



3.1.2. Technical characteristics

GENERAL INFORMATION

Gas-distributing belt
Length of a spring of a natyazhitel in a free state:
  – 1,6 l
64,0 mm
  – 1,8 l:
     • model 1991-1994 of years of release
58,8 mm
     • 1995 and later
59,2 mm
Deviation of a gas-distributing belt:
  – 1,6 l
11,0 – 13,0 mm
  – 1,8 l
9,0 – 11,5 mm
Valves
Length of springs of valves in a free state:
  – models of 1,6 l:
     • springs of inlet valves
at least 39,0 mm
     • springs of final valves
at least 38,0 mm
  – models of 1,8 l
at least 39,5 mm
Gap between a rod of the valve and the directing plug
at most 0,20 mm
Yokes and axis of yokes (SOHC engines)
1,6 l (8 valves):
  – diameter of an axis of yokes
at least 17,959 mm
  – daslyany gap
at most 0,10 mm
  – diameter of an opening of a yoke
at most 18,000 mm
1,6 l (16 valves):
  – diameter of an axis of yokes
at least 18,959 mm
  – oil gap
at most 0,10 mm
  – diameter of an opening of a yoke
at most 19,000 mm
Camshaft
1,6 l (8 valves):
  – cam height
at least 35,251 mm
  – diameter of bearings:
     • forward and back bearings (1 and 5)
at least 43,440 mm
     • pentralny bearings (2, 3 and 4)
at least 43, 410 mm
  – ovality
at most 0,05 mm
  – oil gap
at most 0,15 mm
  – free wheeling
at most 0,20 mm
1,6 l (16 valves):
  – cam height:
     • inlet valve
at least 35,629 mm
     • final valve
at least 35,459 mm
  – diameter of bearings:
     • forward and back bearings (1 and 5)
at least 43,440 mm
     • bearings 2 and 4
at least 43,425 mm
     • central bearing (3)
at least 43,410
  – ovality
at most 0,05 mm
  – oil gap
at most 0,15 mm
  – free wheeling
at most 0,15 mm
1,8 l:
  – cam height:
     • inlet valve
at least 43,894 mm
     • final valve
at least 44,400 mm
  – diameter of bearings
25,940 mm
  – ovality
at most 0,05 mm
  – oil gap
at most 0,015 mm
  – wear of a shaft
at most 0,03 mm
  – free wheeling
at most 0,20 mm
Oil pump
Gap between the conducted cogwheel and a casing of the pump
at most 0,20 mm
Gap between an external cogwheel and the case
at most 0,22 mm
Gap between the plane of cogwheels and the plane of a casing of the pump
at most 0,14 mm
Length of a spring of the reducing valve
at least 45,5 mm
Gaps of valves:
  – 1,6 and 1,8 l engine
Hydraulic adjustment

Moments of an inhaling, N. of m.

Bolts of covers of bearings of the camshaft (1,8 l)
11 – 14
Bolts of an intermediate pulley:
  – 1,6 l
19 – 26
  – 1,8 l
37 – 25
Camshaft epiploon casing bolts (1,8 l)
8 – 11
Camshaft asterisk bolt
49 – 61
Bolt of a persistent plate of the camshaft (1,6 l, 8 valves)
8 – 11
Bolts of a pulley of a bent shaft
12 – 18
Bolt of an asterisk of a bent shaft
157-167
Bolts of a head of cylinders:
  – 1,6 l and 1,8 l
76 – 81
Bolts of a final collector:
  – 1,6 l
16 – 23
  – 1,8 l
38 – 46
Bolts of the heat-insulating screen of a final collector
8 – 11
Bolts of an arm of an exhaust pipe
37 – 52
Flywheel cover bolts:
  – 1,6 l
37 – 52
  – 1,8 l
65 – 88
Flywheel bolts
96 – 103
Bolts of a forward cover
19 – 16
Bolts of an inlet collector
19 – 16
Bolts of the block of covers of radical bearings
16 – 20
Bolts of the oil pump
19 – 16
Bolts of a cover of the oil pump
6 – 9
Bolts of a maslozaborny branch pipe
8 – 11
Screws of a back cover
8 – 11
Bolts of an axis of yokes (1,6 l)
22 – 28
Bolts of the oil pallet
8 – 11
Bolts of the oil pallet (model with the separate pallet)
37 – 52
Bolt of a pulley of a natyazhitel:
  – 1,6 l
19 – 16
  – 1,8 l
38 – 52
Bolts of a cover of a gas-distributing belt
8 – 11
Bolts of an intermediate pulley of a gas-distributing belt:
  – 1,6 l
19 – 16
  – 1,8 l
38 – 52
Bolts of a cover of valves:
  – 1,6 l
5 – 7
  – 1,8 l:
     • two bolts in a back part of a cover
8 – 11
     • screws in the top part of a cover
5 – 7
     • the bolts fixing a pulley of the water pump
8 – 11

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