Skoda Felicia

Since 1994 of release

Repair and car operation

Shkoda Felitsija
+ Cars of mark Skoda Felicia
+ The maintenance instruction
+ Routine maintenance
- Engine repair
   + Repair without extraction from the car of the petrol engine of 1.3 l
   + Repair without extraction from the car of the petrol engine of 1.6 l
   - Repair without extraction from the car of the diesel engine
      The description of the basic knots and mechanisms
      Reduction of the piston of the first cylinder in position of the top dead point (ВМТ) the end of a step of compression
      Check of tightness of chambers of combustion
      Removal and installation of a belt of drive ГРМ and its covers
      Removal and installation натяжителя and cogwheels of a belt of drive ГРМ
      Removal, installation and adjustment of a tension of a belt of a drive of auxiliary units
      Removal and installation of a cover of a head of cylinders
      Replacement of an epiploon of a camshaft
      Replacement of an epiploon of an intermediate shaft
      Replacement of epiploons of a cranked shaft
      Removal and installation of a head of cylinders in gathering with the inlet pipeline and a final collector
      Check of serviceability of functioning of hydraulic pushers
      Flywheel - removal, check and installation
      Support of the power unit - check and replacement
      The pallet - removal, check and installation
      Removal and installation of the oil pump and assemblage маслозаборника
   + Dismantle of the power unit and engine major repairs
+ Systems of cooling, heating
+ The power supply system
+ Engine electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body and salon furnish
+ Onboard electric equipment


The description of the basic knots and mechanisms

The block of cylinders with the basic components of a cranked shaft

1 — the Loose leaf of the first radical bearing
2 — Bolts of fastening of a cover of the radical bearing
3 — Covers of radical bearings
4 — Loose leaves of the third (persistent) radical bearing

5 — the Bottom persistent half rings
6 — the Cranked shaft
7 — the Bottom persistent half rings

The block of cylinders with components of installation of a cranked shaft

1 — the Epiploon
2 — Segment шпонка
3 — the Adjusting pin
4 — the Forward cover
5 — the Sealing lining
6 — the Block of cylinders
7 — the Bolt
8 — the Flange

9 — the Flywheel
10 — the Back cover
11 — the Bolt
12 — the Holder of a back epiploon
13 — the Epiploon
14 — the Intermediate shaft
15 — the Sealing ring
16 — the Holder of an epiploon

Shatunno-piston assemblage

1 — Piston rings
2 — the Piston
3 — the Piston finger
4 — Lock rings
5 — the Rod
6 — Loose leaves шатунного the bearing

7 — the Block of cylinders
8 — the Cover of the bottom head of a rod
9 — the Adjusting pin
10 — the Oil jet
11 — the Bolt
12 — the Bolt

Head of cylinders with components клапанного the mechanism and drive ГРМ

1 — the Stopper маслозаливной mouths
2 — Consolidation
3 — the Washer
4 — the Nut
5 — the Washer
6 — the Cover of a head of cylinders
7 — the Sealing lining of a cover
8 — the Bolt of fastening of a head
9 — the Tension roller
10 — the Nut
11 — Planck

12 — the Cogwheel distributive
13 — the Bottom consolidation of a hairpin of fastening of a head of cylinders
14 — high pressure Pipelines
15 — the Head of cylinders
16 — the Sealing lining of a head
17 — the Candle накаливания
18 — the Atomizer of injection of fuel
19 — the Cover
20 — the Gear belt of drive ГРМ
21 — the Casing of a gear belt

Components of installation of a camshaft and клапанного the mechanism

1 — Covers of bearings of a camshaft
2 — the Nut
3 — the Camshaft
4 — the Hydraulic pusher
5 — Crackers of the cutting lock
6 — the Plate клапанных springs
7 — External клапанная a spring
8 — Internal клапанная a spring

9 — Maslootrazhatelnyj a cap
10 — the Washer
11 — the Directing plug
12 — the Epiploon
13 — the Head of cylinders
14 — Valves
15 — Consolidation

Lateral cut of a head of cylinders

1 — the Channel of the vortical chamber
2 — the Vortical chamber

3 — the Pin of fixing of position of the vortical chamber

The water pump

1 — the Bolt
2 — the Pulley
3 — the Bolt
4 — the Water pump
5 — the Sealing ring

6 — the Arm
7 — the Adjusting bolt
8 — the Thermostat
9 — the thermostat Case

The block of cylinders

In pig-iron moulding of the block apertures of cylinders are pierced and five radical support of a cranked shaft are generated. The general view and an order of installation of components of the block of cylinders are presented on illustrations. Covers of radical bearings fasten to a block body special bolts М10. The third (average) radical bearing is persistent, perceives arising axial loadings and limits longitudinal люфт a shaft.

Cranked and intermediate shaft

The cranked shaft is forged from a steel. Necks radical and шатунных bearings are subjected careful polishing. On a forward pin of a shaft places under landing of a cogwheel of a belt of drive ГРМ and a sealing epiploon of the first radical bearing are provided. Besides cranked and distributive in the engine the intermediate shaft transferring rotation from a cranked shaft to oil and vacuum pumps is provided also.

Shatunno-piston group

Shod rods have двутавровое section and a direct cut of the bottom head. In the top head запрессована the bronze plug. The bottom head is cut in the middle and completed by loose leaves шатунного the bearing. Correct mutual position of a cover of a rod and loose leaves шатунного the bearing is designated накерненными by labels (). At installation on the engine the rod should be developed by labels () forward. The cover шатунного the bearing fastens to the bottom head bolts. In the course of major repairs performance it is accepted to make replacement of bolts of fastening of covers шатунных bearings.

Pistons are cast from an aluminium alloy and have the flat bottom with sample under the vortical chamber. At installation of new shatunno-piston assemblages it is necessary to check up size выступания pistons over a surface of the block of cylinders for the purpose of definition of a necessary thickness of a lining. At size выступания pistons from 0.66 to 0.86 mm the lining with one label is established. At выступании 0.87 0.90 mm - with two, and, at last, at выступании 0.91 1.02 - with three. At lining selection the size выступания each of pistons should be checked. As a starting point the maximum result undertakes.

The piston finger has floating landing. Before installation of a finger the piston should be warmed up to temperature 60С. Finger fixing is carried out by means of two lock rings.

On a piston wall three flutes under installation of piston rings are executed. In the top flutes two are established компрессионных rings, in bottom - маслосъемное. While in service the car expansion of backlashes in locks top компрессионного and маслосъемного rings to size of 1.2 mm, bottom компрессионного - 0.6 mm is supposed. Maximum admissible lateral люфт компрессионных rings makes 0.25 mm, маслосъемного - 0.15 mm. At installation on the ring piston are developed by locks at an angle 120 so that ин one of locks has not appeared on an axis of a piston finger.

Head of cylinders

The general view of a head of cylinders with components клапанного the mechanism is presented on an illustration. The head fastens to the block ten bolts with heads of type TORX. The order of a tightening of bolts is similar 1.6 l described for the petrol engine.

The head cover is put on the hairpins screwed in support of a camshaft, and fastens three nuts.

The camshaft is laid in five support and settles down directly over valves. For a drive of valves pushers are used equipped with hydrojacks клапанных backlashes.

Directing plugs and saddles of valves запрессованы in a head also are among replaceable components.

Valves are established vertically and have рядное an arrangement. Each valve is equipped by two springs which rest the bottom end faces against a basic washer, and top - in a plate. The plate of springs is fixed on the valve by crackers of the cutting lock.

The camshaft cam rests against a pusher not precisely on the centre that forces the valve to turn in the course of movement.

Valves are exposed on manufacturer to special processing and additional grinding in do not require. In case of detection of defects valves (and their saddles) are subject to replacement.

The steel camshaft rotates in five bearings of the sliding which have been not equipped with replaceable loose leaves. The camshaft drive (and ТНВД) is carried out зубчатоременной by transfer. The effort of a tension of a gear belt is regulated automatically hydraulic натяжителем. Belt replacement is made after removal of the engine from the car. At belt installation it is necessary to achieve combination of labels on a cogwheel of a cranked shaft and the block of cylinders/flywheels and a coupling dome, and also a cogwheel of a camshaft and a belt cover, cogwheel ТНВД and a landing flange.

In a cast cover of a head of cylinders the mouth equipped with tightly closed carving stopper is equipped маслозаливная. From below the aperture of a jellied mouth is closed маслоотражателем. For cover fastening to a head three nuts, are used by the decorative rubber decorative rubber or plastic stoppers.

The water pump

The water pump on a design differs from used on petrol engines. The pump is established on an arm to which the case of the thermostat with a taking away branch pipe fastens.