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


3.1.10. Yokes and distributive shaft

Removal

PERFORMANCE ORDER
1. Uncover valves.
2. Remove the ignition distributor.
3. Uncover a gas-distributing belt, a belt and an asterisk of the camshaft.
4. Measure a free wheeling of the camshaft by means of the special device, if necessary replace a persistent plate of the camshaft, the camshaft and a head of cylinders.
Models of 1,6 l
5. Before removal number all details.
6. Weaken bolts of yokes in the specified sequence (SOHC).
7. Remove axes of yokes together with yokes.
8. Remove the air filter and the block of fuses.
9. Get the camshaft from a head of cylinders. Take an epiploon.
Models of 1,8 l
10. Unscrew bolts of asterisks of camshafts and remove asterisks.
11. Weaken bolts of covers of bearings in the specified sequence (1,8 l of DOHC). Uncover.
12. Take an adjusting arrangement of epiploons into account.
13. Remove camshafts and epiploons.
14. Get hydraulic regulators of valves or pushers and put them in the separate numbered boxes.

Check

PERFORMANCE ORDER
1. Examine all details on existence of scratches and damages.
Models of 1,6 l
2. Examine the surface of yokes adjoining to camshaft cams on existence of strong wear and scratches. If necessary replace yokes.
3. Examine a surface of an axis of yokes and an internal surface of openings of yokes. Whenever possible measure diameter of openings of yokes and diameter of an axis of yokes.
4. Calculate a gap. If necessary replace axes and yokes.
5. Measure internal and external diameters of bearings of the camshaft and calculate a lubricant gap.
6. Measure camshaft cams.
Models of 1,8 l
7. Check a lubricant gap of each bearing of the camshaft. Clean solvent bearings and covers of bearings. Establish shaft on places.
8. Put a strip of measuring plastic on each bearing.
9. Establish covers of bearings. Tighten bolts of covers in the specified sequence.
10. Unscrew bolts in the specified sequence and uncover.
11. Compare width of the compressed strip to the measuring table.
12. If necessary replace the camshaft or a head of cylinders. Clean off the plastic remains.
13. Check hydraulic elevators of valves (1,8 l), if necessary replace them.
14. Measure external diameters of pushers or hydraulic elevators and diameters of their openings. If necessary replace worn-out details.
15. Examine cams and bearings of shaft.
16. Measure diameters of bearings of shaft. If necessary replace a shaft.
17. Measure height of each cam. If necessary replace a shaft.
18. Replace all details which characteristics do not conform to technical requirements.

Installation

PERFORMANCE ORDER
Models of 1,6 l

1. Oil engine a camshaft epiploon.

2. Establish an epiploon.
3. Apply lubricant on cams and bearings of a shaft.
4. Install the camshaft in a head of cylinders.
5. Oil sealing rings of hydraulic regulators.
6. Install regulators in yokes.
7. Put on yokes axes.
8. Insert fixing bolts.
9. Combine lubricant openings of an axis of yokes and a head of cylinders.
10. Tighten fixing bolts of yokes in the specified sequence.
11. Establish an asterisk of the camshaft and tighten a bolt.
12. Put on a gas-distributing belt.
13. Establish the remained details.
Models of 1,8 l
14. Oil pushers engine and establish them on places.
15. Grease bearings and cams of camshafts. Establish shaft. Establish a chain and combine synchronizing tags of asterisks of shaft with the marked chain links.
16. Apply silicone sealant on the shaded areas.
17. Establish covers of bearings and tighten bolts in the specified sequence.
18. Oil new epiploons and establish them on places.
19. Establish asterisks of shaft.
20. Put on a gas-distributing belt.
21. Establish the remained details and check operation of the engine.



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