Skoda Felicia

1. Remove a head of cylinders, the pallet картера the engine and a gear wheel of the oil pump. Make sure of reliability of landing of sleeves of cylinders, in case of need fix them by means of special washers.
2. Check up the bottom heads of rods and a cover шатунных bearings on presence of identification labels in the form of the figures which have been beaten out of a lateral surface of components. Marks should correspond to numbering of cylinders (it is considered the first the cylinder nearest to газораспределительной of a chain).
3. In case of need independently mark pierced on rods and their covers лыски (take advantage of a paint or кернером).
4. Check up axial люфт rods, probeом лезвийного type having measured backlash size between their bottom heads and cheeks of cranks. If the result of measurement exceeds the admissible value stipulated in Specifications, it is necessary to replace a corresponding rod.
5. Having turned a cranked shaft, result pistons of 2nd and 3rd cylinders in positions НМТ.
6. Give fixing nuts and uncover the bottom head of a rod with the loose leaf enclosed in it шатунного the bearing of a cranked shaft.
7. If dismantle is made only for the purpose of replacement of loose leaves, remove a rod from a shaft neck (try not to damage a neck of a shaft and a cylinder mirror - on hairpins of fastening of a cover of the bearing it is better to pull pieces of a fuel hose) and take from its head the top loose leaf of the bearing.
8. Combine removed with each of rods components separately.
9. Remove components of the bottom heads of rods of pistons of 1st and 4th cylinders. Operate extremely cautiously not to damage a mirror of cylinders.
10. Remove a step нагарообразования in the top part of each of cylinders.

1. Remove a head of cylinders, the pallet картера, маслоотражатель, the oil pump and маслозаборник.
2. Having lowered pistons in average position, feel a finger of a mirror of cylinders, checking them on presence of step deterioration around the top border of a course of pistons. Steps should be removed by means of a special vertical drill, otherwise it will be impossible to exclude probability of damage of pistons in the course of extraction шатунных assemblages.
3. Чертилкой процарапайте on the bottom of each of pistons number of the corresponding cylinder.
4. With the help probeа лезвийного type measure axial люфт landings of rods to necks of a cranked shaft. Results of measurements write down.
5. On the diesel engine turn out fixing screws and take from the nests of a nozzle маслораспылителей coolings of pistons.

6. Having turned a cranked shaft, expose pistons of 1st and 4th cylinders in positions НМТ. In case of need накерните on rods and covers of number of cylinders, an arrow designate orientation of covers concerning rods.

7. Try to remember orientation of shatunno-piston assemblages to the engine. Depending on type of the engine of assemblage can are marked in the various ways: on turned aside газораспределительного a belt dot labels, risks are put to the party of the bottom heads and their covers, or ledges on moulding are provided the various form. If factory marks do not manage to be found out, put labels independently.
8. In stages (on a half-turn for the approach) ослабьте bolts of fastening of a cover, uncover with the bottom loose leaf. In order to avoid mess at assemblage glue the loose leaf to a cover an adhesive tape. Repeat procedure for assemblage.
9. The hammer handle push out assemblages through cylinders, take the top loose leaves and glue their adhesive tape to rods.
10. Operating in a former order remove shatunno-piston assemblages of 2nd and 3rd cylinders.

4. A fragment of an old ring accurately remove coal adjournment from flutes under installation of piston rings. Try not to damage walls and a bottom of flutes.
5. Carefully clear of a deposit of the bottom of pistons. After соскабливания the basic layer of adjournment smooth out the bottom a wire brush or an emery paper.

Watch safety of marks of pistons.

6. Having finished cleaning, wash out flutes under installation of rings by solvent, then carefully dry pistons. Make sure of passableness drainage масловозвратных apertures of flutes.
7. Check up a condition of pistons. Normal deterioration is shown in the form of uniform vertical development on a persistent surface of the piston and accompanied by landing easing in the flute top компрессионного rings. In case of revealing of traces of any abnormal deterioration the piston should be investigated attentively about its suitability to the further use, then to try to reveal and eliminate a cause of infringement.
8. Presence on a skirt of the piston of scratches or задиров can be regarded as consequence of an overheat caused by infringement of serviceability of functioning of systems of cooling or greasing, or inadmissible excess of temperature of combustion of an air-fuel mix. Прогары skirts are usually caused by break of gases from chambers of combustion as a result of deterioration of cylinders or piston rings. The burn-out of the bottom of the piston testifies presence of infringements of installation of a corner of an advancing of ignition and a mix detonation. Corrosion of the piston in the form of small cavities specifies on hit in the chamber of combustion/karter of the engine of a cooling liquid. Try to establish the reasons of infringements and to eliminate them.
9. Check up rods, fingers and covers of the bottom heads of rods on presence of cracks and other mechanical damages. Having laid rods on a flat surface, check up them on presence of signs of deformations (in case of absence of confidence, address for the help to experts of car-care centre). Estimate a condition of plugs of the top heads of rods.

10. By means of a micrometer measure diameters of all four pistons on distance of 10 mm from a cut of its skirt in a plane located at right angle to an axis of a piston finger. If the result of measurement falls outside the limits the range stipulated in Specifications, the piston is subject to replacement. If in the course of performance of major repairs the block of cylinders was exposed расточке, or replacement of sleeves (model 1.3) was made, it is necessary to pick up the new complete set of pistons of the repair size. Results of measurements write down - they be required later at calculation of backlashes of landing of pistons in cylinders (see more low).

11. Having enclosed a new piston ring in a corresponding flute on the piston, probeом лезвийного type measure a landing backlash of a ring. Serially check up landing of each of piston rings. If the result of any of measurements falls outside the limits an admissible range, the piston is subject to replacement. Just in case check up correctness of a choice of rings, having measured their thickness by a micrometer.

12. By Columbus нониусного type measure internal diameters of nests under landing of piston fingers in the top heads of rods. Then define diameters of fingers). Subtracting from results of the first measurements results of the last, define backlashes of landing of fingers in heads. Compare results of calculations to requirements of Specifications. In case of need the plug of a rod and a nest in the piston should be pierced, and the finger is replaced new, the repair size. Performance of the given work will charge more correctly to experts of car-care centre.

13. On engines of 1.3 l rods are broken on two weight categories, on covers of the bottom heads of rods corresponding marks are put. Easier rods aim a yellow paint, heavier - dark blue. At replacement of rods it is necessary to select replaceable components from the same weight group. In case of absence of marks it is necessary to address for consultation to experts of the firm service-centre of company Skoda.
14. Correctness of orientation of pistons on rods is defined on the marks put on the bottoms (the bottom should be cleared of a deposit).
15. On engines of 1.3 l put on the bottom of the piston of the marksman should specify forward on the engine (towards an arrangement of the oil filter). The rod should be развернутмаслотоками back.
16. On models 1.6 of l and diesel engines of the marksman on the piston bottom should be developed aside газораспределительного a belt. The rod and a cover of its bottom head are established done in their bases проточкой in specified by an arrow on the piston the party.

17. Grease a piston finger and the plug of the top head of a rod with pure impellent oil. Establish the piston on a rod. Fix a finger two lock rings, having developed their locks on 180 ° from demountable grooves. Operating in the same order, mount the remained shatunno-piston assemblages.