Subaru Legacy

since 1990-1998 release

Repair and operation of the car



Subaru Legacy
+ 1.1. Identification numbers
+ 2. Maintenance
- 3. Engines
   3.1. Technical characteristics
   3.2. Operations on repair of the engine installed in the car
   3.3. Top dead point of the first cylinder
   3.4. Cover of a head of the block of cylinders
   3.5. Inlet collector
   + 3.6. Gear belt and pulleys
   3.7. Replacement of a forward sealing ring of a bent shaft
   3.8. Replacement of sealing rings of camshafts
   3.9. Camshafts and pushers
   3.10. Heads of the block of cylinders
   3.11. Oil pallet
   3.12. Oil pump
   3.13. Drive flywheel / plate
   3.14. Replacement of a back sealing ring of a bent shaft
   3.15. Suspension bracket of the power unit
   - 3.16. Capital repairs of the engine
      3.16.1. Technical characteristics
      3.16.2. Check of a compression
      3.16.3. Check of the engine by means of the vacuum gage
      3.16.4. Recommendations about removal of the engine
      3.16.5. Removal of the engine
      3.16.6. Sequence of dismantling of the engine
      3.16.7. Dismantling of a head of the block of cylinders
      3.16.8. Cleaning and survey of a head of the block of cylinders
      3.16.9. Assembly of a head of the block of cylinders
      3.16.10. Removal of pistons
      3.16.11. Division of sections of blocks of cylinders
      3.16.12. Removal of a bent shaft with rods
      3.16.13. Block of cylinders of the engine
      3.16.14. Honingovaniye of cylinders
      3.16.15. Rods
      3.16.16. Bent shaft
      3.16.17. Survey of radical and conrod bearings
      3.16.18. Engine balance of assembly at capital repairs
      3.16.19. Survey of pistons
      3.16.20. Check of working gaps of conrod bearings
      3.16.21. Check of working gaps of radical bearings of a bent shaft
      3.16.22. Assembly of sections of the block of cylinders
      3.16.23. Installation of piston rings
      3.16.24. Installation of pistons
      3.16.25. Installation of the engine
      3.16.26. Start of the engine after capital repairs
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
+ 10. Brake system
+ 11. Suspension bracket
+ 12. Steering
+ 13. Body
+ 14. Electric equipment






3.16.19. Survey of pistons

PERFORMANCE ORDER
1. Before check of pistons with rods remove piston rings from pistons and carefully clear pistons.
2. For removal of piston rings from pistons unclench a piston ring and insert under a ring evenly on a circle of 2 or 3 old edges of the probe and on them shift a ring from the piston.
3. Be careful. Do not scratch the piston the ends of a ring. Rings very fragile can also burst if to unclench them very strongly. Working edges of piston rings very sharp therefore handle with them very with care not to be cut.
4. You hold each set of rings together with pistons for repeated installation them on the places.
5. Clear all traces of a deposit from the top part of the piston.
6. Remove a deposit from flutes under piston rings in the piston, using the special tool or an old piston ring.
7. After removal of a raid clear the piston the corresponding solvent and wipe dry.
8. Carefully examine each piston on existence of cracks around a skirt and an opening under a piston finger.
9. Check wear on a piston skirt, an opening in a piston head, and also burned in the top part of the piston.
10. Using a new piston ring and an edge of the probe, check a gap of a piston ring in a piston flute.
11. Traces of pointed corrosion on the piston specify that cooling liquid got to the combustion chamber. It is necessary to find the reason of hit of cooling liquid in the combustion chamber and to eliminate it.
12. Measure diameter of the piston at an angle 90 ° to an axis of a piston finger and at distance of 50 mm from top.





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