Opel Frontera

Since 1992 of release

Repair and car operation


Opel of Frontera
+ Cars of mark Opel Frontera
+ Current leaving and service
+ The engine
- Cooling and heating systems
   Radiator and the fan
   The pump of a cooling liquid
   The thermostat thermostat/case
+ The power supply system and release
+ Engine electric equipment
+ Coupling
+ Manual box of a gear change
+ Kardannye shaft, the main transfer
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Controls and operation
+ Electric equipment schemes

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The thermostat thermostat/case
THE GENERAL DATA

ENGINE OHC OF 2.0 L

For maintenance of a guarantee the thermostat is delivered only together with a drain stopper, i.e. parts are replaced completely.
The thermostat acts in film as follows:

PERFORMANCE ORDER
1. Disconnect a cable of weight from the storage battery.
2. Merge cooling liquid (section Refuelling of a cooler of system of cooling of the Head Current leaving and service).
3. Disconnect the top hose from a connecting branch pipe on the engine, and turn away a stopper together with the thermostat from the thermostat case.

Installation is carried out in sequence, return to removal. The sealing ring is established always the new. Bolts tighten the moment of 8 Nanometers.
If under a sealing ring there is a leak removal and installation of the case of the thermostat represents labour-consuming enough operation. To reach the thermostat case it is necessary to remove a gear belt. Besides, it is necessary to remove a pulley of a cranked shaft, a cover of the block of cylinders, the tension device of a gear belt and a protective cover of a gear belt.

PERFORMANCE ORDER
1. Disconnect a cable of weight from the storage battery.
2. Remove multicostal клиновой a belt as it has been described.
3. Merge a liquid from cooling system (section Refuelling of a cooler of system of cooling of the Head Current leaving and service).
4. Turn away four bolts of fastening of the generator.
5. Disconnect two hoses from the case of the thermostat and расстыкуйте штекерное connection of the gauge of the index of temperature.
6. Disconnect a hose from the case of the thermostat and from a final branch pipe of a liquid (1).
7. Remove a gear belt as it has been described for engine OHC.
8. Remove a tension roller of a gear belt (the moment of an inhaling of 25 Nanometers).
9. Keeping a cranked shaft from проворачивания (include transfer), turn away a bolt of fastening of a pulley (the moment of an inhaling of 130 Nanometers + from 40 ° to 50 °, a bolt always replace on new). Remove a pulley (sits with the big tightness).
13 Disconnect cables from a cover of the case of a camshaft. Disconnect two hoses and a case cover (the moment of an inhaling of 8 Nanometers).
10. Remove a cogwheel from a camshaft, having turned away a bolt (the shaft is kept from проворачивания for шестигранник). The moment of an inhaling of a bolt of 45 Nanometers.
11. Disconnect a cable of the gauge of position of a camshaft from an internal guard, having remembered its joining.
12. Turn away bolts of fastening and remove a protective cover from the oil pump and the camshaft case (the moment of an inhaling of 6 Nanometers).
13. Now access to the case of the thermostat (1) is free, as is shown in иллюстр. After отворачивания bolts of fastening the case acts in film and in an aperture the sealing ring is visible. This ring is always replaced, even if it outwardly has no damages.
At replacement of the case of the thermostat the temperature gauge (if it is perfectly in order) is rolled in the new case (11 Nanometers). The branch pipe of release of water fastens the moment of an inhaling of 8 Nanometers (a new sealing ring).
14. Installation of the case of the thermostat is carried out in sequence, to return its removal. Insert into an aperture a new sealing ring and fix the case bolts. The moment of an inhaling of bolts of 15 Nanometers. Will pay special attention on generator fastening:
15. Basic laths (1) and (2) on иллюстр. Of 18 Nanometers fasten the moment.
16. The bottom bolt of fastening tighten the moment of 35 Nanometers.

The thermostat is not subject to repair and in case of its damage is replaced. Its simple check is carried out in the next way:

PERFORMANCE ORDER
1. Suspend the thermostat with a final branch pipe on a wire in capacity with cold water.
2. Similarly fix the thermometer.
3. Gradually heat up water and check up, whether starts the thermostat to open at the temperature specified in Specifications and whether it opens completely. If it does not occur, a branch pipe and the thermostat replace in the complete set.

ENGINE DOHC

The thermostat arrangement here is similar to an arrangement of the thermostat at the engine восемью valves (the engine of 2.0 l with OHC). The difference consists that the thermostat is directly in the case. For maintenance of a guarantee the thermostat is delivered only complete with the case.

PERFORMANCE ORDER
1. Merge a liquid from cooling system (section Refuelling of a cooler of system of cooling of the Head Current leaving and service). Also disconnect the top hose from a branch pipe on the thermostat case.
2. Turn away bolts and remove the case of the thermostat with a sealing ring from a head of cylinders. Carefully clear interfaced surfaces.
3. Establish on a head of cylinders the new case of the thermostat with the thermostat and a new sealing ring and fix bolts. Bolts tighten the moment of 15 Nanometers.
At this engine on a head of cylinders the flange different from two other attached hoses is fixed. Consolidation replacement is carried out as follows:
4. Disconnect a cable of weight from the storage battery.
5. Remove клиновой a belt as it has been described.
6. Merge a liquid from cooling system (section Refuelling of a cooler of system of cooling of the Head Current leaving and service).
7. Disconnect both laths from a final collector and the generator. Turn away the bottom bolt of fastening of the generator and reject the generator back.
8. Disconnect both hoses from a connecting flange and disconnect a flange. At once clear an interfaced surface.
9. Establish on a head of cylinders a flange with new consolidation. Tighten bolts the moment of 15 Nanometers.
10. Again attach hoses and fix their collars.
11. Establish into position the generator. Tighten bolts of fastening of both support (1, 2) the moment of 20 Nanometers, and the bottom bolt of the generator the moment of 35 Nanometers. Fastening of the generator of this engine is shown on иллюстр.
12. Establish a belt according to instructions for this engine, attach the storage battery and fill system with a liquid.
Start the engine and after a while check up system on tightness.

THE ENGINE OF 2.4 L

PERFORMANCE ORDER
1. Partially merge a liquid from cooling system as it has been described in section Refuelling of a cooler of system of cooling of the Head Current leaving and service. Level of a cooling liquid should be at least below thermostat height.
2. Turn out bolts of fastening of the case of the thermostat (иллюстр.) also uncover. Now the thermostat is free and can be taken out. Over the thermostat there is a rubber sealing ring.

Thermostat installation is carried out in sequence, return to removal. The sealing ring is always replaced with the new.

PERFORMANCE ORDER
1. Bolts of fastening of a cover tighten the moment of 6 Nanometers.

In summary fill system of cooling with a liquid as it is described in section Refuelling of a cooler of system of cooling of the Head Current leaving and service.