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
+ 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






3.3. Top dead point of the first cylinder

GENERAL INFORMATION

The top dead point of the piston is a point through which there passes each piston at a provorachivaniye of a bent shaft. Each piston reaches the provision of VMT at the end of a compression step, then again at the end of an exhaust step. For the purpose of installation of the mechanism of gas distribution of the engine the top dead point of the piston of the first cylinder is used.

The piston arrangement precisely in the top dead point is extremely important when carrying out many works, for example, at removal of the camshaft, a gear belt and a pulley of the camshaft.

PERFORMANCE ORDER
1. Before works on installation of the piston of the first cylinder in VTM, be convinced that the lever of gear shifting is in neutral situation, and the emergency brake is tightened.
2. Disconnect system of ignition, having disconnected the electric socket from the ignition coil. Unscrew spark plugs.
3. For installation of any of pistons in VMT rotate a bent shaft one of the methods described below. At the same time rotate a bent shaft of the engine clockwise.
4. The most preferable method is a provorachivaniye of a bent shaft of the engine for a bolt of fastening of a pulley of a bent shaft.
5. For saving of time it is possible to use a starter for a piston supply to VMT. Exact installation of the piston in VMT is made by turn of a bent shaft for a bolt of fastening of a pulley of a bent shaft.
6. Unscrew a spark plug of the first cylinder and in an opening for a candle screw in the manometer with an adapter.
7. Rotating a bent shaft of the engine, and watching indications of the manometer, define the moment when pressure shown by the manometer ceases to increase. It demonstrates that the piston of the first cylinder was installed in VMT in a compression step.
8. Tighten a bent shaft of the engine until the tag on a pulley of a bent shaft is combined with figure 0 on a plate of the installation of the mechanism of gas distribution located on the forward party of the engine (it is specified by an arrow).