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)
   + 3.2. Petrol 4-cylinder engine (2 liters)
   - 3.3. Petrol V6 engine (2,5 liters)
      3.3.1. Introduction
      3.3.2. Technical characteristics
      3.3.3. Recommendations about repair
      3.3.4. Top dead point of the first piston
      3.3.5. Covers of heads of cylinders
      3.3.6. Springs, clamps and epiploons of valves
      3.3.7. Gas-distributing belt and asterisks
      3.3.8. Camshafts and pushers
      3.3.9. Inlet collector
      3.3.10. Final collectors
      3.3.11. Heads of cylinders
      3.3.12. Forward epiploon of a bent shaft
      3.3.13. Oil pallet
      3.3.14. Oil pump
      3.3.15. Flywheel or drive plate
      3.3.16. Back epiploon of a bent shaft
      3.3.17. Fastenings of the engine
   + 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


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3.3.2. Technical characteristics
GENERAL INFORMATION

The general

Diameter of the cylinder
83 mm
Piston stroke
73 mm
Volume
2,5 liters

Numbering of cylinders (from a gas-distributing belt to the transmission):

  – back row
1–3–5
  – forward row
2–4–6

Sequence of operation of cylinders
1–2–3–4–5–6

Numbering of cylinders and arrangement of contacts of a cover of the distributor of ignition and contacts of the coil of ignition

Forward part of the car
Oil pump:

  – a gap between the conducted gear wheel and a casing of the pump
0,218 mm at most
  – a gap between teeth of gear wheels
0,195 mm at most
  – a gap between the plane of gear wheels and the plane of a casing of the pump
0,128 mm at most
  – length of a spring of the reducing valve
46,050 mm

Moments of an inhaling, N. of m.

Bolts of an arm of the compressor of the air conditioner
38 – 52
Bolts and nuts of an inlet collector
19 – 25
Bolts and nuts of a final collector
19 – 25
Bolts of the heat-insulating guard of a final collector
8 – 10

Bolt of the shock-absorber of a bent shaft
157 – 165
Bolts of a cover of a gas-distributing belt
8 – 10

Bolts of an intermediate pulley
37 – 52

Bolt of a natyazhitel of a gas-distributing belt
37 – 43
Bolts of the lever of a natyazhitel of a gas-distributing belt
19 – 25

Bolts of asterisks of camshafts
122 – 140

Bolts of covers of bearings of camshafts
11 – 13

Bolts of a head of cylinders:

  – step 1
17 – 19
  – step 2
Tighten for 90 °

  – step 3
Tighten for 90 °
Bolts of the oil pallet:
  – long bolts
19 – 25
  – short bolts
8 – 10
  – bolts of a dividing partition of the oil pallet
19 – 25

  – bolts of the oil pump
19 – 25
  – bolts of a maslozaborny branch pipe
8 – 10

  – bolts of a flywheel or drive plate *
61 – 66

  – nuts of a cover of a head of cylinders
5 – 8
Support двигателя*:

  – right support:

     • nuts
73 – 103
     • through bolt
68 – 92
  – forward support:

     • nuts
75 – 104
     • through bolt
85 – 117
  – back support:

     • nuts
68 – 92
     • through bolt
85 – 117

  – left support:

     • nuts
68 – 92
     • through bolt
68 – 92
  – lower support:

     • nuts
43 – 60
     • bolts
56 – 80

* Before installation grease carvings with the pressurizing structure.