Daewoo Nexia

since 1994 of release

Repair and car operation

Deu Neksiya
+ Maintenance instruction
+ Maintenance
- Engine
   2.1. Technical characteristics
   2.2. Greasing system
   2.3. Maintenance and engine repair
   2.4. Compression check
   2.5. Dismantle and engine installation assembled
   2.6. Engine support
   2.7. Inlet collector and laying
   2.8. Final collector and laying
   2.9. Cover of the case of a cam-shaft
   2.10. Pulley of a cranked shaft
   2.11. Forward cover of a gear belt
   2.12. Camshaft cogwheel
   2.13. Cogwheel of a cranked shaft
   2.14. Back cover of a gear belt
   2.15. Adjustment of a tension of a gear belt
   2.16. Verification of the angular provision of a camshaft
   2.17. Forward consolidation of a cranked shaft
   2.18. Camshaft. Levers. Hydrojacks of gaps
   2.19. Klapannye of a spring. Consolidations of cores of valves
   2.20. Head of cylinders. Camshaft case
   2.21. Repair of a head of the block of cylinders
   2.22. Dismantle of valves
   2.23. Directing plugs of valves
   2.24. Expansion of openings of plugs
   2.25. Valves
   2.26. Klapannye of a spring
   2.27. Saddles of valves
   2.28. Consolidations of valves
   2.29. Height of a core of the valve concerning a head of the block of cylinders
   + 2.30. Pushers of valves with hydrojacks of gaps
   2.31. Oil pallet
   2.32. A reception branch pipe with the oil filter
   2.33. Oil pump
   2.34. Repair of the oil pump
   2.35. Pistons and rods
   2.36. Flywheel. Back consolidation of a cranked shaft
   2.37. Cranked shaft
   2.38. Rods and radical bearings
   2.39. Replacement of loose leaves
   2.40. Piston group and rods
   2.41. Piston fingers and rings
   2.42. Block of cylinders
   2.43. Installation of pistons
   2.44. Disk balancing with a gear wreath
   2.45. Repair of carving openings
   + 2.46. Diagnostics of malfunctions of the engine
+ 3. Engine (two top camshafts)
+ cooling System
+ Toplevnaya and exhaust systems
+ Electric chain
+ 7. Ignition system
+ 8. Electronic control unit and sensors
+ Transmission
+ 10. Five-speed transmission and main RPO MM5 broadcast
+ 11. Automatic Transmission
+ Steering
+ Running gear
+ 14. Forward suspension bracket
+ 15. Drive of forward wheels
+ 16. Back suspension bracket
+ Brake system
+ Body
+ Heating, ventilation
+ Electric equipment

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2.27. Saddles of valves


Installation of a directing core of the grinding machine


Grinding head for processing of saddles of valves


Sizes of facets of saddles of valves


Grinding in of valves

1. To insert directing core into the plug.
2. To establish a grinding head the party with a konusnost 45 ° on a valve saddle, see fig. A grinding head for processing of saddles of valves.
3. To attach the handle with the rasporny plug. Grinding to continue until the grinding head will not start to remove saddle metal evenly on all circle. It is necessary to aspire to remove as little as possible metal from a saddle facet.
4. To overturn a grinding head and to establish it the party with a konusnost 30" on a saddle. To carry out similar to polishing of a facet of a saddle. The same grinding head is applied to processing of saddles of inlet and final valves.
5. To cover facets of a saddle with thin grinding paste, to insert into the plug the valve and carefully to turn it with small pressing. To raise the valve and to check prilegany its heads to a saddle. If there is no uniform contact of the valve to a saddle, to repeat operation of polishing of a saddle.
6. Grinding in of valves.

After polishing which should provide tightness of landing of the valve in a saddle, as a rule, make final grinding in of valves to saddles. For operational development of saddles use only thin grinding paste. For uniform distribution of paste on a saddle circle the valve in the course of grinding in periodically raise from a saddle. After grinding in it is necessary to clear valve and saddle facets of the remains of grinding paste. Before installation of valves it is necessary to grease their cores.