Mazda 323

since 1985 release

Repair and operation of the car

Mazda 323

+ Introduction
+ Petrol engines
+ Engine lubrication system
+ Engine cooling system
+ System of ignition
+ Power supply system, carburetor, system of injection of fuel
- Diesel engine
   Principle of operation of the diesel engine
   Removal and installation of a gear belt / adjustment of the drive of the distributive mechanism
   System of preheat of the diesel engine
   Check of system of preheat
   Removal of air from a power supply system
   Check/replacement of the electromagnetic valve of interruption in supply of fuel
   Adjustment of the drive of gas
   Check/adjustment of speed of idling
   Removal and installation of nozzles
   Removal and installation of the vacuum pump
+ 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 nozzles

Faulty nozzles can cause a strong detonation of the engine and lead to damage of bearings. In this case to leave the engine to idle and weaken serially cap nuts of nozzles. If when weakening one of nuts the detonation disappears, it indicates a faulty nozzle.

1 — the muffler of noise of an admission and the resonant channel
2 — injection pipelines

3 — a returnable fuel-supply line
4 — nozzles
5 — laying and washers

The faulty nozzle can also be revealed, weakening serially cap nuts when the engine works with the speed of bystry idling. If speed after weakening of one of nozzles remains invariable, so this nozzle is faulty. The nozzle can be checked by means of the manometer. (It is carried out in a workshop; the required dispersion pressure: 110 Bars).

First signs of malfunction of nozzles:

  • Interruptions of ignition
  • Detonation in one or several cylinders
  • The engine overheats
  • Falling of engine capacity
  • Excessively strong black exhaust cloud
  • High fuel consumption



  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 unscrew the muffler of noise of an admission and the resonant channel.
  2. To carefully clear outside pipelines of injection and returnable fuel-supply lines a cold cleaner.
  3. To remove injection pipelines in a set, for this purpose to weaken cap nuts on TNVD and nozzles the cut-through cap key.

Not to change a bend form.

  1. To remove a fuel hose from the returnable pipeline and to weaken a lock-nut, to remove laying and the returnable pipeline.
  2. To remove nozzles and to spread out as installation.

Through openings of nozzles dirt should not get to combustion chambers.

  1. In each opening there is still a laying and a washer which have to be replaced.
  2. To check a nozzle needle for wear and damages, to remove a soot with the wooden pallet.

Not to process a nozzle or a needle of a nozzle a wire, a file or an emery paper at all. Not to mix separate elements of nozzles among themselves.



  1. To establish 4 new laying and washers.

To monitor the adjusting provision, the blue tag has to be turned up.

  1. To establish nozzles and to tighten 65 Nanometers with effort.

The banner of holders of nozzles can lead to deformation of nozzles and jamming of needles of nozzles or other damages.

  1. To establish a returnable fuel-supply line with new laying and to tighten nuts with effort of 30 Nanometers.
  2. To install injection pipelines, to tighten cap nuts with effort of 30 Nanometers.
  3. On all holders of nozzles to weaken a little cap nuts of pipelines of injection.
  4. To turn the crankshaft a starter until on pipelines fuel acts. To tighten pipelines with the ordered effort.
  5. To install the muffler of noise of an admission and the resonant channel.
  1. To connect a weight cable to the battery.
  1. If are available, to determine time on hours and to set a protective code of the radio receiver.