Subaru Legacy

since 1990-1998 release

Repair and operation of the car



Subaru Legacy
+ 1.1. Identification numbers
- 2. Maintenance
   2.1. Introduction
   2.2. Technical characteristics
   2.3. Frequency of service
   2.4. Check of level of engine oil
   2.5. Level of cooling liquid
   2.6. Level of brake fluid and liquid of the drive of coupling
   2.7. Liquid for a windshield washer
   2.8. Check of the accumulator
   2.9. Tires and check of pressure in tires
   2.10. Check of level of oil in the automatic transmission
   2.11. Check of level of liquid in the amplifier of steering
   2.12. Replacement of oil and oil filter
   2.13. Check and service of the accumulator
   2.14. Accumulator charging
   2.15. Check of the cooling system
   2.16. Check of hoses, tubes and their replacement
   2.17. Check and replacement of brushes of screen wipers
   2.18. Shift of tires
   2.19. Check of a suspension bracket and steering
   2.20. Check of the exhaust system
   2.21. Check of level of oil in the transmission and the main transfer
   2.22. Check of level of oil in differential (the main transfer)
   2.23. Check of the brake system
   2.24. Check of the vacuum amplifier of brakes
   2.25. Check of the emergency brake
   2.26. Check of fuel system
   2.27. Replacement of the fuel filter
   2.28. Check and replacement of a driving belt
   2.29. Check of a free wheeling of a pedal of a brake
   2.30. Check of a free wheeling of a pedal of coupling
   2.31. Check and replacement of spark plugs
   2.32. Check of high-voltage wires
   2.33. Check and adjustment of turns of idling
   2.34. Replacement of the air filter
   2.35. Check and replacement of the valve of ventilation of a case (PCV)
   2.36. Check of system of catching of vapors of fuel
   2.37. Check of system of repeated combustion of exhaust gases (EGR)
   2.38. Service of the cooling system
   2.39. Replacement of brake fluid
   2.40. Replacement of oil in the automatic transmission
   2.41. Replacement of oil in the mechanical transmission
   2.42. Check and adjustment of gaps of valves
   + 2.43. Main malfunctions
+ 3. Engines
+ 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






2.42. Check and adjustment of gaps of valves

GENERAL INFORMATION

Prevention

Check of gaps of valves needs to be made on the cold engine.


ENGINES 1,8, 2,0 AND 2,2 L

Installation of the piston of the first cylinder in VMT

At installation of the piston of the first cylinder in VMT in a compression step the tag on a pulley of the right camshaft has to coincide with the index.

Check of a gap of valves probe edge


Adjustment of a valvate gap


Arrangement of arrows on a camshaft pulley
Shooters on a pulley of the camshaft specify position of the corresponding piston in VMT.

PERFORMANCE ORDER
1. Remove assembly of the air filter and disconnect the sensor of mass of a stream of air (MAF).
2. Uncover a head of the block of cylinders. Then, using adjusting tags, install the piston of the first cylinder in the top dead point in a compression step (see rice. Installation of the piston of the first cylinder in VMT).
3. Using a probe edge, measure gaps of valves and write down their values (see rice. Check of a gap of valves probe edge).
4. If adjustment of a valvate gap is necessary, weaken a lock-nut and, rotating the adjusting screw of the valve, establish the required gap (see rice. Adjustment of a valvate gap).
5. After adjustment of a valvate gap hold the adjusting screw with the screw-driver and tighten a lock-nut.
6. Adjust valvate gaps in other cylinders in the following sequence: 3–2–4. Before adjustment of valvate gaps install the piston in the corresponding cylinder in VMT in a compression step for what turn a bent shaft on 180 ° clockwise. To be convinced that the piston of the corresponding cylinder is in VMT, check the provision of an arrow on a camshaft pulley (see rice. An arrangement of arrows on a camshaft pulley).
7. Establish a cover of a head of the block of cylinders and fix by bolts.

ENGINES OF 2,5 L

Arrangement of tags on a camshaft pulley

When checking a valvate gap of the inlet valve No. 1 and final valve No. 3 it is necessary to establish tags in the specified situation.

Use of the probe for measurement of a valvate gap


Arrangement of pulleys of camshafts

When checking gaps inlet the valve No. 3 and the final valve No. 2 небходимо to establish pulleys of camshafts in the specified situation.

Arrangement of pulleys of camshafts

At adjustment of gaps of valves of the inlet valve No. 2 and final valve No. 4 небходимо to establish pulleys of camshafts in the specified situation.

Arrangement of pulleys of camshafts

At adjustment of a valvate gap of the inlet valve No. 4 and final valve No. 1 небходимо to establish pulleys of camshafts in the specified situation.

Prevention

Adjustment of valvate gaps requires use of special tools for pressing of a pusher of the valve.


Check and adjustment of valvate gaps need to be made on the cold engine (20–40 °C).

PERFORMANCE ORDER
1. Uncover a head of the block of cylinders.
2. Remove a casing of a gear belt from the right camshafts.
3. Turn a pulley of a bent shaft clockwise until the tag on a pulley of the camshaft is established in the provision of an hour hand 2 hours 30 minutes (see rice. An arrangement of tags on a camshaft pulley). Measure a valvate gap of the inlet valve No. 1 and final valve No. 3.
4. Using a probe edge, measure a valvate gap of the inlet valve No. 1 and final valve No. 3 (see rice. Use of the probe for measurement of a valvate gap). Write down the measured gaps of valves.
5. Turn a bent shaft clockwise until adjusting tags on a pulley of the camshaft are not established in the provision of an hour hand 4 hours 30 minutes (see rice. Arrangement of pulleys of camshafts). Measure valvate gaps of the final valve No. 2 and inlet valve No. 3.
6. Turn a bent shaft of the engine until adjusting tags on a pulley of the camshaft are not established in the provision of an hour hand of 7 hours 30 minutes (see rice. Arrangement of pulleys of camshafts). Measure a gap of the inlet valve No. 2 and final valve No. 4.
7. Turn a bent shaft clockwise until adjusting tags on a pulley of the camshaft are not established in the provision of an hour hand of 10 hours 30 minutes (see rice. Arrangement of pulleys of camshafts). Measure a gap of valves of the final valve No. 1 and inlet valve No. 4.
8. If gaps of valves differ from demanded, it is necessary to replace an adjusting washer with a washer of the required thickness.
9. Turn a valve pusher so that the cut in a pusher was established at an angle 45 ° in relation to the camshaft.
10. For pressing of a pusher of the valve on the engine of 2,5 l use special adaptation.
11. Install the holder of the special tool on the camshaft
12. Establish a depressor on the holder of special adaptation and fix it by a hinged finger.
13. Establish a hinged finger in a depressor and the holder.
14. Turn a hinged finger to press a valve pusher.
15. After pressing of a pusher of the valve, take an adjusting washer, using the small screw-driver or tweezers.
16. Measure thickness of an adjusting washer. For calculation of thickness of a new adjusting washer use the following formula:
The inlet valve S = (V + T) – 0.2 mm.
The final valve S = (V + T) – 0.25 mm.
T = thickness of an old adjusting washer;
V = the measured valvate gap;
S = thickness of a new adjusting washer.
17. Choose a new adjusting washer with thickness, the closest to settlement. Use an adjusting washer with thickness from 2,22 mm to 2,82 mm with a step of 0,01 mm.
18. Using the special tool, press a pusher of the valve and establish a new adjusting washer.
19. Repeat a procedure for the choice and replacement of adjusting washers on other valves.