Mazda 323

since 1985 of release

Repair and car operation



Mazda 323

+ Introduction
- Petrol engines
   Specifications
   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






Removal and installation of camshafts

(DOHC) VR engines

Removal

 PERFORMANCE ORDER

  1. To remove spark plugs, see. Head Introduction.
  2. To uncover heads of cylinders with laying.
  3. To establish the crankshaft in situation the corresponding VMT of the piston of the 1st cylinder, see. Section Removal and installation of a gear belt (DOHC).

Position of the crankshaft after that should not change more.

  1. To remove a gear belt, see. Section Removal and installation of a gear belt of VZ engines, В5, B6 (SOHC), (SOHC) VR.
  2. To remove the ignition distributor, see. Head ignition System, Section Removal and installation of the distributor of ignition.
  1. Holding cam-shafts a key, to unscrew bolts of fastening of cogwheels. To remove cogwheels of cam-shafts, if necessary to bring down in easy blows of a rubber hammer.

Cogwheels to remove carefully not to lose directing pins.

  1. To unscrew a sealing plate.
  1. To check axial люфт cam-shafts. Demanded value: 0,07-0,19 mm. The most admissible axial люфт: 0,20 mm. If this value is exceeded, it is necessary to replace cam-shafts and, probably, a head of cylinders.
  1. To mark all covers of bearings with chalk or a felt-tip pen that at installation it was possible to establish them on former places and in the same situation.
  1. Evenly to weaken covers of bearings of inlet and final camshafts for some passes in that order and to remove covers.
  1. To remove cam-shafts with old epiploons.

Installation

As axial люфт a cam-shaft it is smallest, at installation the cam-shaft should be held in horizontal situation. For providing it it is necessary to fulfill the following requirements. If the cam-shaft at installation is warped, the shaft or a head of cylinders can be damaged.


 PERFORMANCE ORDER

  1. To cover all places of support of cam-shafts with a small amount of engine oil.
  2. To insert cam-shafts.
  1. To put on the shaded places hermetic on a silicone basis (for example, DOW CORNING Q3-7057).

Hermetic should not be put on necks of bearings.

  1. To establish all covers of bearings according to marking.
  1. To tighten bolts of fastening of covers of bearings by means of a dinamometrichesky key in the given sequence. The inhaling of bolts is carried out for two passes.
  • 1st pass: 10 Nanometers
  • 2nd pass: 15 Nanometers
  1. To grease epiploons of cam-shafts and a place of their landing with a small amount of engine oil. Carefully to hammer an epiploon a pipe of the same diameter. To hammer epiploons that they were level with a head of cylinders.

Epiploons at installation not to warp.

  1. To establish a sealing plate and to tighten fastening bolts with effort of 10 Nanometers.
  2. To clear a cam-shaft cogwheel of water and oil.
  1. To turn cam-shafts that directing pins were turned up.
  1. To establish cogwheels of cam-shafts up marks I (the inlet party), Е (the final party).
  2. To tighten bolts of fastening of cam-shafts with effort of 60 Nanometers. Thus to hold a wheel an adjustable spanner.

At an inhaling of a cam-shaft not to damage a head of cylinders a key.

  1. To establish and pull a gear belt, see. Section Removal and installation of a gear belt of VZ engines, В5, B6 (SOHC), (SOHC) VR.
  1. To put on the shaded places hermetic on a silicone basis (for example, DOW CORNING Q 3-7057).
  1. To establish a cover of a head of cylinders with laying and to tighten with effort of 10 Nanometers.
  2. To establish the ignition distributor, see. Head ignition System, Section Removal and installation of the distributor of ignition.