Opel Vectra B

since 1995 release

Repair and operation of the car



Vektr's Opel of B
+ 1.1. Governing bodies and control devices
+ 2. Maintenance
+ 3. Engines
- 4. Heating, ventilation
   - 4.1. Cooling system
      4.1.1. Introduction
      4.1.2. Technical characteristics
      4.1.3. Cooling system hoses
      4.1.4. Radiator
      4.1.5. Thermostat
      4.1.6. Radiator fan
      4.1.7. The additional fan of a radiator on diesel engines of 1,7 l
      4.1.8. The additional electric pump of cooling on diesel engines of 1,7 l
      + 4.1.9. Electric sensors
      4.1.10. Water pump
   + 4.2. Heating system and ventilation
   4.3. Air conditioning system
+ 5. Fuel system
+ 6. Systems of start, ignition
+ 7. Transmission
+ 8. Brake system
+ 9. Running gear
+ 10. Body
+ 11. Electric equipment
+ 12. Main malfunctions
d65d3f49



4.1.5. Thermostat

SOCH ENGINES OF 1,6 L


Prevention

At installation of the thermostat it is necessary to establish a new sealing ring.


Removal

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Merge cooling liquid from the cooling system.
3. Weaken a collar and disconnect the top hose from a thermostat casing on the right side of the engine.
4. Take off a gear belt, an intermediate pulley, a pulley of the camshaft and a back casing of a gear belt.
5. Unscrew bolts and uncover the thermostat a head of the block of cylinders.
6. Take the thermostat from a casing and remove a sealing ring.

Check
A rough inspection of the thermostat can be carried out, having suspended it on a thread in the glass vessel filled with water and heating water to boiling. When boiling water the thermostat has to open. Otherwise replace it.

Temperature of opening of the thermostat is put on the thermostat.

The thermostat which is not closed when cooling water is also subject to replacement.

Installation

PERFORMANCE ORDER
1. Clear the interfaced surfaces of a cover of the thermostat and a head of the block of cylinders.
2. Install the thermostat in a head of the block of cylinders together with a new sealing ring.
3. Establish a cover of the thermostat and fix by bolts.
4. Establish a back casing of a gear belt, a camshaft pulley, a gear belt and an intermediate pulley.
5. Connect the top hose to the thermostat and fix by a collar.
6. Fill in cooling liquid in the cooling system.
7. Connect the accumulator.

PETROL DOCH 1.6, 1.8 AND 2,0 ENGINES L

Removal


PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Merge cooling liquid from the cooling system.
3. Weaken a collar and remove the top hose from a thermostat cover. On engines of 1,6 l the cover of the thermostat is established to the case attached by bolts to the forward end of the engine. On l engines 1,8 and 2,0 the cover the thermostat fastens bolts directly to a head of the block of cylinders. At the same time it is necessary to remove in addition small hose.
4. Unscrew bolts and uncover the thermostat in which the thermostat is fixed (on a photo – the thermostat of the petrol DOCH engine of 1,6 l).
5. On engines of 1,6 l remove a sealing ring.
6. Whether on engines 1,8 of 2,0 l remove laying.

Check

See SOCH Engines of 1,6 l

Installation
PERFORMANCE ORDER
1. Clear the interfaced surfaces of a cover and a casing of the thermostat.
2. Establish a thermostat cover together with the thermostat and a sealing ring or laying and fix by bolts.
3. Connect the top hose to the thermostat and fix by a collar.
4. Fill in cooling liquid in the cooling system.
5. Connect the accumulator.

DIESEL ENGINE OF 1.7 L

Removal

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Merge cooling liquid from the cooling system.
3. Remove the accumulator and a support of the accumulator.
4. Weaken a collar of fastening of a hose.
5. Disconnect the top hose from a cover of the thermostat located on the left side of a head of the block of cylinders.
6. Unscrew bolts of fastening of a cover of the thermostat.
7. Uncover the thermostat together with the thermostat. Remove laying.

Check


See SOCH Engines of 1,6 l

Installation

PERFORMANCE ORDER
1. Clear the interfaced surfaces of a cover and a casing of the thermostat.
2. Install the thermostat in a casing by air vents up.
3. Establish a cover together with new laying and fix by bolts.
4. Establish the top hose and fix by a collar.
5. Establish a support of the accumulator and the accumulator.
6. Fill in cooling liquid in the cooling system.
7. Connect the accumulator.

DIESEL ENGINE OF 2 L

Removal

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Merge cooling liquid from the cooling system.
3. Lift a forward part of the car and record on supports.
4. Remove a mudguard from under the engine.
5. To remove the standard thermostat located in the forward party of a head of the block of cylinders at first disconnect electric sockets from temperature sensor, then remove three hoses, unscrew bolts and remove a casing in which the thermostat is installed.

Check

See SOCH Engines of 1,6 l

Installation

PERFORMANCE ORDER
1. Clear the interfaced surfaces of a cover of the thermostat and a head of the block of cylinders.
2. Establish a thermostat cover with new laying and fix by bolts.
3. Repeatedly connect hoses and electric sockets.
4. Establish a mudguard and lower the car.
5. Fill in cooling liquid in the cooling system.
6. Connect the accumulator.