2.4. Gear belt

Removal

Turn a bent shaft clockwise and combine adjusting tags that the piston in the first cylinder was installed in the top dead point in a compression step. At this time adjusting tags of a pulley of the camshaft and a cover of a head of the block of cylinders have to be combined, and the adjusting pin of a pulley of the camshaft has to be above.




 PERFORMANCE ORDER

  1. Take off poliklinovy a belt and a pulley of a bent shaft.
  2. Remove a casing of a gear belt.
  3. Remove an engine support arm.
  1. For a head of a big bolt turn the mechanism of a tension of a gear belt before combination of a basic plate with an opening in a casing, then insert a clamp into an opening.
  1. Six-sided key weaken the fixing bolt.
  1. For a head of a big bolt turn the mechanism of a tension of a gear belt against the stop clockwise.
  1. Tighten the fixing bolt.
  1. Take off a gear belt.

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

  1. Turn out a hinged bolt and remove the mechanism of an automatic tension of a gear belt.

Check

Pulleys, pulley of the mechanism of a tension of a gear belt and single pulley

 PERFORMANCE ORDER

  1. . Check pulleys of distributive and cranked shaft, a pulley of the mechanism of a tension and a single pulley for lack of uneven wear, cracks and damages. Replace them as required.
  2. Check ease and smoothness of rotation of a pulley of the mechanism of a tension and single pulley, and also lack of extraneous noise at rotation. Replace them as required.
  1. Replace pulleys if there is a lubricant leak.

Mechanism of an automatic tension of a gear belt

 PERFORMANCE ORDER

  1. Check the mechanism of an automatic tension of a gear belt for lack of leaks and, if necessary, replace it.
  1. Check a tip for lack of wear or damages and, if necessary, replace it.

Gear belt

 PERFORMANCE ORDER

  1. Check a gear belt for lack of traces of oil, water or dust. If it is necessary replace a belt. Insignificant traces have to be wiped by dry fabric or paper. You do not clean a gear belt solvent.
  2. After repair of the engine or adjustment a belt tension, check a condition of a belt. With the following defects, replace a gear belt.

Installation

 PERFORMANCE ORDER

  1. Establish a pulley of a bent shaft on a bent shaft.

Pay special attention to the direction of installation of a flange. If the pulley is established incorrectly, it will lead to damage of a gear belt.

  1. Establish a special washer and screw a bolt of fastening of a pulley to a bent shaft and then tighten a bolt. Inhaling moment: 185–195 N • m.

Gear belt

 PERFORMANCE ORDER

  1. Check the provision of adjusting tags.
    1. from a bent shaft: an adjusting tag on a pulley of a bent shaft and a rod for installation of the moment of injection;
    2. from the camshaft: an adjusting tag on a pulley of the camshaft and a head of cylinders.
  2. Install the tension mechanism.
  3. Install the mechanism of an automatic tension of a gear belt.
  1. Tighten a hinged bolt. Inhaling moment: 50-55H • m.
  1. Establish a gear belt.
Description
Defect
1. Rigid return surface of a gear belt

The surface has a glossy appearance. Rigidity of a surface such is that the nail does not leave marks on a belt

2. Cracks on the return surface of a gear belt
3. Cracks or stratification of a gear belt
4. Strongly worn-out teeths

The side of tooth is worn-out, at the same time fibers, a cord and the rubber basis become visible

5. Strongly worn-out teeths (last stage)

The side of tooth is worn-out, at the same time attritions become visible and tooth thickness is reduced

6. Cracks in the basis of teeths
7. Lack of tooth
8. Strong wear of one party of a belt

The normal belt has to have an equal side end face as though cut off by a sharp knife

9. Cracks on lateral face of a gear belt
  1. Weaken the fixing bolt, at the same time the lever of the mechanism of a tension will move and will automatically pull a gear belt.
  1. Turn clockwise a bent shaft of the engine on two turns and check combination of adjusting tags.
  1. Tighten the fixing bolt.
  2. Remove a clamp.