Tightening torques, Nm
- Nuts of fastening of a turbocharger to a final collector — 31–43
- Bolts of fastening of the case of the fuel filter — 24–34
- Bolt of fastening of a natyazhitel of a gear belt — 37–52
- Bolts of fastening of a support of back wheels:
- 1987 models - 63–52
- models from 1988 release - 12–17
- Nut of fastening of bearings of a nave of a back wheel — 98–177
- Fastening the flywheel to the crankshaft - 96-103
- Fastening to the flywheel of the clutch cover assembly with the pressure plate - 18–26
- Bolts of fastening of a main cylinder of a hydrodrive of coupling — 19–26
- Bolts of fastening of the working cylinder of a hydrodrive of coupling — 19–26
Data for adjustment and maintenance
In connection with the installation of electronic fuel injection systems on engines, two types of routine maintenance have also changed: replacing the fuel filter, as well as checking and adjusting the engine idle speed. The recommended service interval is the same as for older models.
Attention! The power system is under pressure. Before disconnecting the elements of the system, it is necessary to relieve the pressure in the system. To do this, cover the separation point with a clean rag and, being careful, slowly unscrew the union nut.
Warning! Gasoline is extremely flammable, when working with elements of the power system it is forbidden to use fire, sparking devices, open fire hazardous lighting devices, smoking. Sparks should be avoided when working with wires and electrical devices.
Warning! Since gasoline is a carcinogen, it must be prevented from getting on the body and car paintwork. Otherwise, immediately wash the affected area with soap and water.
Fuel filter replacement
According to the manufacturer's instructions on models with a fuel injection system, the fuel filter must be
change every 55,000 km of the car.
Disconnect the wire from the negative battery terminal.
The fuel filter is installed on the left front shock absorber cup near the brake master cylinder reservoir.
Pic. 15.1. 1986 and 1987 fuel filter mounting elements
Prepare enough rags to soak up spilled gasoline. Remove the two filter housing mounting bolts (one on each side) or loosen the clamps and remove the hoses (pic. 15.1, 15.2). Drain any remaining fuel from the filter.
Pic. 15.2. Elements of fastening of the fuel filter of models since 1988 of release
Unscrew the nuts securing the filter bracket to the shock absorber cup and remove the filter.
Install new filter with bracket and secure with nuts.
Install new copper gaskets on both ends of the housing and tighten the cap bolts to the required torque.
Attention! On 1986 and 1987 models, this operation is performed after the first 3,500 km and then every 25,000 km. On production models since 1988, the idle speed is automatically controlled by the processor control unit.
Adjusting the engine idling speed
Connect a tachometer to the engine. On an engine warmed up to operating temperature, after setting the selector lever to the position «parking» or «neutral» within 3 minutes, increase the engine speed to 2500–3000 min-1.
Check the ignition timing setting and adjust if necessary.
If the vehicle is operated at altitudes up to 1300 m above sea level, disconnect the bypass solenoid valve connector.
If the cooling fan is running, set the engine to idle and wait for the fan to stop.
Pic. 15.3. Idling speed adjustment of the engine crankshaft by turning the screw on the choke housing
Check the idle speed of the crankshaft. If it does not correspond to the required one, adjust it by turning the screw on the air damper body (pic. 15.3).
If the solenoid valve connector has been disconnected, reconnect it.