Mazda 323

since 1985 release

Repair and operation of the car

Mazda 323

+ Introduction
- Petrol engines
   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


Check of the directing valves

At repair of a head of cylinders with untight valves it is only not enough to process valves and working facets of saddles. It is extremely important to check guides of valves for wear existence. This check on engines with a big run is especially important. Worn-out guides do not provide the central position of valves and lead to a high consumption of oil. If wear is too big, guides of valves should be replaced.


  1. To remove the valve.
  2. To clear a valve guide a cylindrical brush or a cleaner.
  1. To measure the internal diameter of a guide of the valve in 6 places.
  1. To measure by a micrometer diameter of a core of the valve in 6 places.
  1. For definition of average value to put results of six measurements and to divide on 6.

Designation of the engine

the average size in mm

Valve core

valve guide



F 8,9851 7,9751 9,185/8,1752
VZ, V6, VRE 5,970 — 5,985 5,965 — 5,980 6,01 — 6,03
VZE, V5, V6E 6,970 — 6,985 6,965 — 6,980 7,01 — 7,03
PN 6,970 — 6,985 6,950 — 6,965 7,017 — 7,037

1 — the minimum size.

2 — the greatest value for vpuskn./vypuskn.

  1. To subtract the average diameter of a core of the valve from the average diameter of a guide of the valve. The maximum radial side play is defined by it. Maximum radial side play: 0,20 mm (diesel of 0,10 mm).
  2. If values are exceeded, it is necessary to replace guides of valves (it is carried out in a workshop) or valves.

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