Withdrawal
Warning! Turn the crankshaft clockwise and align the timing marks so that the piston in the first cylinder is at top dead center on the compression stroke. At this time, the alignment marks of the camshaft pulley and the cylinder head cover should be aligned, and the camshaft pulley alignment pin should be at the top.
1. Remove poly V-belt and crankshaft pulley.
2. Remove the toothed belt cover.
3. Remove the engine support bracket.
4. At the head of the large bolt, turn the toothed belt tensioner until the base plate is aligned with the hole in the casing, then insert the retainer into the hole.
5. Use a hex wrench to loosen the fixing bolt.
6. At the head of the large bolt, turn the toothed belt tensioner clockwise until it stops.
7. Tighten the fixing bolt.
8. Remove the toothed belt.
Attention! Mark the direction of rotation of the toothed belt to reinstall it in its original position.
9. Turn out a hinge bolt and remove the mechanism of an automatic tension of a gear belt.
Examination
Pulleys, toothed belt tensioner pulley and idler pulley
1. Check the camshaft pulley, crankshaft pulley, idler pulley and idler pulley for uneven wear, cracks or damage. Replace them as needed.
2. Check the ease and smoothness of rotation of the tensioner pulley and the idle pulley, as well as the absence of extraneous noise during rotation. Replace them as needed.
3. Replace pulleys if there is any lubricant leakage.
Timing Belt Automatic Tensioner
1. Check the timing belt automatic tensioner for leaks and replace if necessary.
2. Check the tip for wear or damage and replace if necessary.
Toothed belt
1. Check the toothed belt for oil, water or dust. Replace belt if necessary. Minor marks should be wiped off with a dry cloth or paper. Do not clean the toothed belt with solvent.
2. After repairing the engine or adjusting the belt tension, check the condition of the belt. If the following defects are present, replace the toothed belt.
Installation
1. Install the crankshaft pulley on the crankshaft.
Warning! Pay special attention to the installation direction of the flange. If the pulley is installed incorrectly, the timing belt will be damaged.
2. Install a special washer and screw in the bolt securing the pulley to the crankshaft and then tighten the bolt. Tightening torque: 185–195 Nm.
Toothed belt
1. Check the position of the alignment marks.
- on the crankshaft side: alignment mark on the crankshaft pulley and rod for setting the injection moment;
- on the camshaft side: alignment mark on the camshaft pulley and cylinder head.
2. Install the tensioner.
3. Install the automatic toothed belt tensioner.
4. Tighten the hinge bolt. Tightening torque: 50–55Nm.
5. Install the toothed belt.
Description | Defect | |
1. Rigid toothed belt back | The surface has a glossy appearance. The hardness of the surface is such that the nail does not leave marks on the belt | |
2. Cracks on the reverse surface of the toothed belt | ||
3. Cracked or split toothed belt | ||
4. Heavily worn teeth | The side of the tooth is worn out, showing the fibers, cord and rubber base | |
5. Heavily worn teeth (last stage) | The side of the tooth is worn out, at the same time scuffs become visible and the thickness of the tooth is reduced | |
6. Cracks at the base of the teeth | ||
7. Missing tooth | ||
8. Strong wear on one side of the belt | A normal belt should have a flat side end, as if cut with a sharp knife | |
9. Cracks on the side of the toothed belt |
6. Loosen the fixing bolt, this will move the tension lever and automatically tension the toothed belt.
7. Turn the engine crankshaft two turns clockwise and check the alignment of the alignment marks.
8. Tighten the fixing bolt.
9. Remove the retainer.