Daewoo Nexia

Since 1994 of release

Repair and car operation

Daewoo Nexia
+ The maintenance instruction
+ Maintenance service
- The engine
   2.1. Technical characteristics
   2.2. Greasing system
   2.3. Maintenance service and engine repair
   2.4. Compression check
   2.5. Dismantle and engine installation in gathering
   2.6. Engine support
   2.7. An inlet collector and a lining
   2.8. A final collector and a lining
   2.9. A cover of the case of a cam-shaft
   2.10. A pulley of a cranked shaft
   2.11. A forward cover of a gear belt
   2.12. A camshaft cogwheel
   2.13. A cogwheel of a cranked shaft
   2.14. A back cover of a gear belt
   2.15. Adjustment of a tension of a gear belt
   2.16. Check of angular position of a camshaft
   2.17. Forward consolidation of a cranked shaft
   2.18. A camshaft. Levers. Hydrojacks of backlashes
   2.19. Klapannye springs. Consolidations of cores of valves
   2.20. A head of cylinders. The 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 apertures of plugs
   2.25. Valves
   2.26. Klapannye springs
   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 backlashes
   2.31. The oil pallet
   2.32. A reception branch pipe with the oil filter
   2.33. The oil pump
   2.34. Repair of the oil pump
   2.35. Pistons and rods
   2.36. A flywheel. Back consolidation of a cranked shaft
   2.37. A 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. The block of cylinders
   2.43. Installation of pistons
   2.44. Balancing of a disk with a gear wreath
   2.45. Repair of carving apertures
   + 2.46. Diagnostics of malfunctions of the engine
+ 3. The engine (two top camshafts)
+ Cooling system
+ Топлевная and exhaust systems
+ Electric chain
+ 7. Ignition system
+ 8. The electronic block of management and gauges
+ Transmission
+ 10. A five-speed transmission and the main transfer RPO MM5
+ 11. Automatic Transmission
+ Steering
+ Running gear
+ 14. A forward suspension bracket
+ 15. A drive of forward wheels
+ 16. A back suspension bracket
+ Brake system
+ Body
+ Heating, ventilation
+ Electric equipment

2.25. Valves

THE GENERAL DATA

Character of deterioration of a tip of a core of the valve

Zones of deterioration of the valve

1. THE CORE TIP
2. THE FLUTE FOR INSTALLATION OF CRACKERS
3. THE LEAST WORN OUT SITE OF THE CORE
4. THE WORN MOST OUT SITES OF THE CORE
5. THE FACET
6. THE EDGE

To measure

PERFORMANCE ORDER

Несоосность the valve and a saddle. To raise the valve from a saddle and to put on a facet of a head of the valve a thin paint coat (the Berlin azure). To lower the valve on a saddle, to press and cautiously to turn. In the wake of a paint on a saddle facet it is possible to judge about концентричности the valve and a saddle. To wipe paint traces. To put on a saddle facet a thin paint coat (the Berlin azure) and to repeat check. In the wake of a paint on a valve facet it is possible to judge about соосности the valve and a saddle. At unsatisfactory прилегании valve heads to a saddle it is necessary to process facets of details grinding or to replace valves.

To check up

PERFORMANCE ORDER

Deterioration of a tip of a core of the valve. Flutes for installation of crackers and consolidations on выкрашивание and deterioration of walls. If flutes have defects, it is necessary to replace valves. A facet of a head of the valve on presence of bowls and cracks. If the facet is strongly damaged, to check up a mirror of the corresponding cylinder and the piston. A valve core on presence задиров and scratches. Teases and superficial scratches it is possible to deduce thin наждачным бруском. Прямолиней ность a core of the valve and коробление heads. To use as valve support V-shaped measuring prisms. It is necessary to replace the deformed valves.
Facet of a head of the valve on presence of a concentric flute. If depth of a flute is great and at grinding of a head of the valve the sharp edge will turn out, it is necessary to replace the valve. The facet of a head of the valve can be перешлифована for the nominal sizes, if in the rest the valve годен for the further use. At impossibility перешлифовать a facet the valve is subject to replacement. To measure a thickness of an edge of a head of the valve after grinding. If the thickness of an edge of less admissible value to replace the valve.