1. Front camshaft sprocket
2. Intermediate roller
3. Tension roller
4. Crankshaft pulley
5. Timing belt bottom cover
6. Timing belt center cover (engine mount bracket)
7. Toothed belt
8. Timing belt top cover
9. Gasket
10. Toothed belt guide
Removing
1. Drain the coolant from the radiator.
2. Remove the upper radiator hose and upper toothed belt cover.
3. Remove the water pump pulley.
4. Set the piston of the first cylinder to the TDC of the compression stroke according to the marks on the crankshaft pulley.
5. Remove the starter and install the flywheel retainer using the loosened mounting bolt holes.
6. Turn away bays of fastening of a pulley of a cranked shaft and remove a pulley, using a puller. Attach the jaws of the puller only from the back of the pulley.
7. Remove the bottom cover of a gear belt.
8. Loosen the idler pulley bolt, turn the idler pulley counterclockwise and tighten the bolt again. Then remove the toothed belt guide from the camshaft pulley.
9. Remove the intermediate roller.
10. Remove the toothed belt together with the crankshaft pulley.
11. Remove the tension roller and return spring.
Toothed belt check
Visually check the condition of the toothed belt. If any of the following defects are found, replace the belt.
A) The teeth are broken or cracked at the base.
Likely causes:
- Seized camshaft or distributor
- Damaged crankshaft and/or camshaft seals
b) The reverse side of the belt is badly worn or cracked.
Likely causes:
- Jamming of the tension roller
- Engine overheating
- The belt hits the cover
With) The side of the belt is worn. The edges of the belt are rounded, the cord threads are disheveled and come out.
Likely reasons:
- Incorrect belt installation
- Faulty belt guide on crankshaft and/or camshaft sprocket
d) Tooth wear. The outer coating on the thrust surface of the teeth is worn off, the rubber layer under it is worn and has a whitish color.
Possible reasons:
- Poor belt cover seal
- Leak in water pump
- Incorrect operation of the camshaft
- Incorrect distributor operation
- Excessive belt tension
e) Contact with oil, coolant or water on the belt.
Possible reasons:
- Poor sealing in glands
- Leak in water pump
- Poor belt cover seal
Installation
1. Install the belt guide on the crankshaft.
2. Check if the piston of the 1st cylinder is at TDC of the compression stroke (crankshaft protrusion must be at the top).
3. Install the tension roller and return spring. Swing the roller outwards and temporarily tighten the fixing bolt to secure the roller in this position.
4. Install the intermediate roller and tighten the mounting bolt to the required torque.
5. Install the belt together with the crankshaft sprocket.
The white lines on the belt must line up with the marks stamped on the spongy pulleys of the crankshaft and camshaft.
The arrow on the belt should point towards the belt cover.
6. Install the belt guide on the camshaft pulley and tighten the bolts, having previously applied a fixing compound to their threads.
7. Adjust the toothed belt tension as follows:
- A) Loosen the idler pulley lock bolt. The required tension will be set automatically.
- b) Turn the crankshaft clockwise two turns to distribute the tension.
- c) Tighten the idler pulley lock bolt while holding the pulley with another wrench.
Belt tension - 147.1±24.5 N (15±2.5 kgf).