Repair and operation of the car Mazda 323 - Removal and installation of a gear belt (DOHC)//m323.ru

Mazda 323

since 1985 release

Repair and operation of the car



Mazda 323

+ Introduction
- Petrol engines
   Specifications
   Removal and installation of the engine
   Removal and installation of a gear belt of VZ, V5, B6 (SOHC), BP engines (SOHC)
   Removal and installation of a gear belt (DOHC)
   Removal and installation of a head cylinders/replacement of laying of a head of cylinders
   Mechanism of the chain drive
   Removal and installation cam-shaft/adjustment of phases of gas distribution
   Removal and installation of the camshaft
   Cam-shaft/drive of the distributive mechanism
   Distributive shaft / drive of the distributive mechanism
   Removal and installation of camshafts
   Removal and installation of valves
   Replacement of maslootrazhatelny caps
   Check of the directing valves
   Processing of facets of saddles of valves in a head cylinders/processing of valves
   Grinding in of valves
   Check/adjustment of a gap of valves
   Check of a compression
   Removal and installation/tension of a maple belt
+ Engine lubrication system
+ Engine cooling system
+ System of ignition
+ Power supply system, carburetor, system of injection of fuel
+ Diesel engine
+ System of production of the fulfilled gases
+ Coupling
+ Manual transmission
+ Automatic transmission
+ Suspension bracket and system of steering
+ Brake system
+ Wheels and tires, body, coloring of the car, care of the car
+ System of electric equipment
+ Heater, system of lighting, devices
+ Governing bodies and methods of operation
+ Electric circuits






Removal and installation of a gear belt (DOHC)

Engines B 6 (DOHC) , BP (DOHC)

1 — the lower guard of the engine
2 — maple a belt of the pump of a servoupravleniye and the compressor of the conditioner
3 — maple a generator belt
4 — a belt pulley of the water pump
5 — a washer
6 — a belt pulley of the crankshaft
7 — the external directing disk of a gear belt

8 — the internal directing disk of a gear belt
9 — a spark plug
10 — a measuring core
11 — the top casing of a gear belt
12 — an average casing of a gear belt
13 — the lower casing of a gear belt
14 — a gear belt
15 — a tension roller with a spring
16 — the directing roller

Removal

 PERFORMANCE ORDER

  1. To disconnect a weight cable from the battery.

At the same time data from memory of malfunctions of the engine or a protective code of the radio receiver are erased. Before shutdown of the battery it is necessary to read instructions in the Section Removal also installation of the battery.

  1. To lift the car and to remove the right forward wheel.
  2. To remove the lower guard of the engine in the right niche of a wheel.
  3. If is available, to take off maple a belt of the pump of a servoupravleniye and the compressor of the conditioner, see the Section Removal and an installation/tension of a maple belt.
  4. To weaken bolts of fastening of a belt pulley of the water pump.
  5. To take off maple a generator belt, see the Section Removal and an installation/tension of a maple belt.
  6. To turn out bolts of fastening of a belt pulley of the water pump and to remove a pulley.

To 2/91 g of the issue.

 PERFORMANCE ORDER

  1. To block the crankshaft and to unscrew bolts of fastening of a belt pulley of the crankshaft.
  2. For blocking of the crankshaft to include the 5th transfer and to ask the assistant to squeeze out a brake pedal.
  3. To remove a washer, a belt pulley of the crankshaft, the external and internal directing disks of a gear belt.

With 3/91 g of the issue.

 PERFORMANCE ORDER

  1. To unscrew bolts of fastening of a belt pulley of the crankshaft. To hold a neck of a belt pulley special MAZDA SST adaptation 49 D 011102.
  2. To take out a core for measurement of level of oil.
  1. To unscrew the top, average and lower casings of a gear belt.
  1. To remove spark plugs, see the Head Vvedeniye.
  2. To install the piston of the 1st cylinder in the provision of ignition. For this purpose to turn the crankshaft that tags on a belt pulley of a cam-shaft coincided with tags on a cover of the distributive mechanism.
  3. For a provorachivaniye of the crankshaft to include the 5th transfer and to shift the car on a plain surface. Other opportunity to turn the crankshaft: To raise a forward wheel, to include the 5th transfer and to turn a wheel a hand.

After the piston of the 1st cylinder is in the provision of ignition, to install the transmission in neutral situation and to double-check whether tags on a belt pulley of the crankshaft and a cover of the drive of the distributive mechanism coincide. If tags coincide, not to turn more crankshaft at all.


  1. If the old gear belt is established again, it should be marked. On a belt it is necessary to put to the shooter, specifying the direction of rotation. The crankshaft rotates in the direction clockwise.
  1. To weaken a bolt of a tension roller and to wring out a tension roller in the direction of an arrow until the gear belt is weakened. Again to tighten a bolt of a tension roller.

At push-up of a roller to enclose a rag not to damage a gear belt or a tension roller.

  1. To take off a gear belt, after that not to change the provision of cogwheels.

Installation

Not to bend and not to overwind a gear belt. Anyway to replace the polluted, damaged or worn-out gear belt. To check uniformity and ease of the course of a tension roller.

If the cam-shaft turns at the taken-off gear belt, any piston should not be in the provision of VMT. Otherwise there can be serious damages of pistons and valves. If it is required to turn the crankshaft, previously it is necessary to install all pistons on half height. For this purpose to put from above on a crankshaft cogwheel the line with chalk (a condition: the crankshaft is in the provision of VMT of the piston of the 1st cylinder), then to turn a crankshaft wheel on 1/2 turns to the left or to the right. The mark chalk is in horizontal position.


 PERFORMANCE ORDER

  1. To be convinced that the cam-shaft is in the situation corresponding to VMT of the 1st cylinder. At the same time tags on a wheel of a cam-shaft and tags on a cover of the drive of the distributive mechanism have to coincide.
  2. To check whether tags on a cogwheel of a cam-shaft and the block of cylinders coincide.
  3. To impose a gear belt so that the branch between a wheel of a final cam-shaft and a wheel of the crankshaft was tense. If the old belt is established, to pay attention to the direction of its rotation.

At installation gear a belt the provision of distributive and cranked shaft should not change. Otherwise in the engine there can be serious malfunctions, or the engine will not develop the maximum power.


  1. To be convinced that camshafts are in the situation corresponding to VMT of the 1st cylinder. At the same time tags on cam-shaft cogwheels have to coincide with tags on a cover of the drive of the distributive mechanism and a head of cylinders.
  1. At the same time tags on a cogwheel of the crankshaft and the block of cylinders have to coincide. Then the engine is in the provision of VMT of the piston of the 1st cylinder.
  2. To turn the crankshaft two times in the direction of rotation and to double-check coincidence of tags, if necessary to repeat adjustment.
  1. To turn the crankshaft in the direction of rotation to a tension tag which is approximately in 60 before mark VMT.
  1. To weaken a bolt of a tension roller that the roller adjoined to a belt.
  2. To tighten a bolt of fastening of a tension roller with effort of 45 Nanometers.
  3. Two times to turn the crankshaft in the direction of rotation and to double-check adjustment.
  4. To check a tension of a gear belt. The gear belt on the site between two belt pulleys of cam-shafts at influence with a force of 10 kg that corresponds to pressing by a thumb, has to cave in on 9 - 11 mm. If value does not conform to the requirement, it is necessary to weaken a tension roller and to tighten it again.
  5. To screw the top, average and lower casings of a gear belt with effort of 10 Nanometers.
  1. To establish the external and internal directing disks of a gear belt according to dredging on a crankshaft wheel. To consider adjusting situation.

To 2/91 g of the issue.

 PERFORMANCE ORDER

  1. To establish a belt pulley of the crankshaft and a washer and to tighten fastening bolts with effort of 15 Nanometers.

With 3/91g. issue.

 PERFORMANCE ORDER

  1. To establish a bolt of fastening of a belt pulley of the crankshaft. Holding a pulley neck special adaptation
  2. MAZDA SST 49D011102 and to tighten a bolt with effort of 165 Nanometers.
  3. To establish a belt pulley of the water pump and to tighten fastening bolts with effort of a hand.
  4. To establish maple a belt, see the Section Removal and an installation/tension of a maple belt.
  5. To tighten a belt pulley of the water pump with effort of 10 Nanometers.
  6. To establish spark plugs and to connect tips, see the Head Vvedeniye.
  7. To screw a guard in the right niche of a wheel.
  8. To insert the masloizmeritelny probe.
  9. To establish a forward wheel and to lower the car.
  10. To connect a weight cable to the battery.
  11. If are available, to determine time on hours and to set a protective code of the radio receiver.
  12. To check the ignition moment, if necessary to adjust, see the Head Sistem of ignition, the Section Check/adjustment of the Moment of Ignition.