Mazda 323

since 1985 of release

Repair and car operation

Mazda 323

+ Introduction
- Petrol engines
   Removal and engine installation
   Removal and installation of a gear belt of VZ engines, В5, B6 (SOHC), (SOHC) VR
   Removal and installation of a gear belt (DOHC)
   Removal and head installation cylinders/replacement of laying of a head of cylinders
   Mechanism of a chain drive
   Removal and installation cam-shaft/adjustment of phases of a gazoraspredeleniye
   Removal and camshaft installation
   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 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
   Compression check
   Removal and installation/tension of a maple belt
+ System of greasing of the engine
+ System of cooling of the engine
+ ignition System
+ 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 steering system
+ Brake system
+ Wheels and tires, body, car coloring, care of the car
+ electric equipment System
+ Heater, lighting system, devices
+ Governing bodies and operation receptions
+ Electric circuits

Check of directing valves

At repair of a head of cylinders with not tight valves it is not enough to process only valves and working facets of saddles. It is extremely important to check directing valves on wear existence. This check on engines with big run is especially important. The worn-out directing do not provide the central position of valves and lead to a high consumption of oil. If wear is too great, directing valves it is necessary to replace.


    To remove the valve. To clear directing the valve a cylindrical brush or a cleaner.
    To measure internal diameter directing the valve in 6 places.
    To measure by a micrometer diameter of a core of the valve in 6 places.
    For determination of average value to combine results of six measurements and to divide on 6.

Engine designation

the average size in mm

Valve core

directing the valve

the inlet

the final

F 8,9851 7,9751 9,185/8,1752
ВЗ, В6, ВРЕ 5,970 — 5,985 5,965 — 5,980 6,01 — 6,03
ВЗЕ, В5, В6Е 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.

    To subtract from average diameter directing the valve average diameter of a core of the valve. By it is defined maximum radial люфт. Maximum radial люфт: 0,20 mm (diesel engine of 0,10 mm). If values are exceeded, it is necessary to replace directing valves (it is carried out in a workshop) or valves.