Magentis and Optima repair since 2000 of release
1. Engines
1.1. Engines of 2,0 l of DOHC
1.2. Engines of V6 2,5 l
1.2.1. Specifications
1.2.2. Compression check
1.2.3. Adjustment of gaps of valves
1.2.4. Gear belt
1.2.5. Check and adjustment of a tension of poliklinovy belts
1.2.6. Tightening of bolts of fastening of a head of the block of cylinders
1.2.7. Head of the block of cylinders, valve and spring of valves
1.2.8. Engine support
1.2.9. Removal and engine and transmission installation
1.2.10. Camshafts
1.2.11. Hydraulic jacks of gaps of valves
1.2.12. Pistons and rods
1.2.13. Cranked shaft
1.2.14. Block of cylinders
1.2.15. Air filter of the V6 engine
1.2.16. Broad air chamber
1.2.17. Inlet collector
1.2.18. Final collector
1.2.19. Exhaust silencers
1.2.20. Search and elimination of malfunctions
2. Greasing system
3. Cooling system
4. Control and decrease in toxicity
5. Fuel system
6. Ignition system
7. Coupling
8. Transmission
9. Power shafts, axes
10. Suspension bracket
11. Steering
12. Brake system
13. Body
14. Central air
15. Electric equipment
16. Electric circuits
 










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1.2.4. Gear belt

Removal

 PERFORMANCE ORDER

1. Remove from the engine the top casing.

2. A key on 16 mm turn the lever of the mechanism of a tension clockwise (approximately on a corner 14 °) and remove a belt from a pulley.

3. Remove a pulley of the water pump, a single pulley, a pulley of the mechanism of a tension and a pulley of a cranked shaft.

4. Remove top and bottom casings of a gear belt.

5. Support the engine a jack and remove a basic arm of the engine.

6. Separate an arm of the bottom frame from the engine.

7. Remove the mechanism of a tension of a gear belt.

Turn a cranked shaft clockwise and combine adjusting labels that the piston in the first cylinder was established in the top dead point in a compression step.

At this time adjusting labels of a pulley of a camshaft and a cover of a head of the block of cylinders should be combined.

8. Remove a gear belt.

Note the direction of rotation of a gear belt for repeated installation it in initial situation.

Check

 PERFORMANCE ORDER

1. Check a condition of a belt and п ри existence of the following defects, replace a gear belt. The surface has a glossy appearance. Rigidity of a surface such is that a nail does not leave traces on a belt.

Cracks on a surface of a gear belt.

Strong wear of one party of a belt.

The normal belt should have an equal lateral end face, as though cut off by a sharp knife.

Strongly worn-out teeths (the last stage)

The tooth party is worn-out, attritions become thus visible and the thickness of tooth is reduced.

Lack of tooth

2. Check ease and smoothness of rotation of a pulley of the mechanism of a tension and a single pulley, and also absence of extraneous noise at rotation. Replace them as required.

Installation

Method of installation of a gear belt and tension mechanism

 PERFORMANCE ORDER

1. Establish a single pulley to inflow of the water pump.

Establish a single pulley a pin to a spring which is compressed and inserted into a ledge of the water pump.

2. Establish the lever of the mechanism of a tension and combine a washer with the block of cylinders.
3. Establish a pulley of the mechanism of a tension to the lever of the mechanism of a tension.

4. Establish pulleys and combine adjusting labels.
  1. At a tightening of a bolt of fastening of a pulley of a camshaft, a wrench for a shestigrannik hold a camshaft from a provorachivaniye.
  2. Before installation of a gear belt if adjusting labels of a pulley and a cover of a head of the block of cylinders do not coincide, do not turn a pulley more than on 3 teeth in any direction.
  3. Pulley turn more than on 3 teeth can lead to collision of pistons with valves.
  4. In case of pulley rotation it is more than on 3 teeth, rotate a pulley after turn of a pulley of a cranked shaft from situation VMT.

5. Establish the tension mechanism on a forward cover.

At this time the adjusting core of the mechanism of a tension should be completely drowned in a natyazhitel.

6. Combine adjusting labels of each pulley and put on a gear belt pulleys in the following sequence: pulley of a cranked shaft single pulley pulley of a camshaft of the managing director of inlet valves (left side) pulley of the water pump pulley of a camshaft of the managing director of final valves (right side) pulley of the mechanism of a tension.
  1. At installation of a gear belt the piston of the first cylinder is in VMT in a compression step.
  2. At installation of a gear belt do not insert fingers between a belt and pulleys.

7. Combine an adjusting pin of the mechanism of a tension.

8. Establish an arm of the bottom frame to the engine.

9. Establish a basic arm of the engine.

10. Establish top and bottom casings of a gear belt.
11. Establish a pulley of the water pump, a pulley of the mechanism of a tension and a pulley of a cranked shaft.
12. A key on 16 mm turn the lever of the mechanism of a tension clockwise (approximately on a corner 14 °) and establish a belt on a pulley.
13. Establish the top casing of the engine.
14. Establish a cover of a maslonalivny mouth.

Adjustment method tension of a gear belt

 PERFORMANCE ORDER

1. Turn a cranked shaft two complete revolutions clockwise and in 5 minutes check that the piston of the first cylinder is in VMT in a compression step.
2. Check a deflection of a gear belt which should make – 6-8 mm.
3. Repeatedly check combination of all adjusting labels.

If adjusting labels are not combined, remove a gear belt and repeatedly establish it, since a step 6.


«on a step back
1.2.3. Adjustment of gaps of valves
on the following page»
1.2.5. Check and adjustment of a tension of poliklinovy belts