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. Gasdistributing 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 4cylinder 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

Gasdistributing belt

Length of a spring of a natyazhitel in a free state: 
– 1,6 l 
64,0 mm

– 1,8 l: 
• model 19911994 of years of release 
58,8 mm

• 1995 and later 
59,2 mm

Deviation of a gasdistributing 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 
157167

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 heatinsulating 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 gasdistributing belt 
8 – 11

Bolts of an intermediate pulley of a gasdistributing 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


