Chevrolet Lanos (since 2004 release)
1. Car device
2. Recommendations about operation
3. Malfunctions in way
4. Maintenance
5. Engine
5.1. Features of a design
5.2. Check of a compression in cylinders
5.3. Removal and installation of mudguards of the engine
5.4. Replacement of support of a suspension bracket of the power unit
5.5. Installation of the piston of the first cylinder in the provision of VMT of a step of compression
5.6. Removal, installation and troubleshooting of a flywheel
5.7. Replacement of details of consolidation of the engine
5.8. Head of the block of cylinders
5.9. Removal and installation of the engine
5.10. Repair of the engine
5.11. Lubrication system
5.12. Cooling system
5.12.1. Features of a design
5.12.2. Possible malfunctions of the cooling system, their reason and ways of elimination
5.12.3. Removal and installation of electric fans of a radiator of the cooling system of the engine
5.12.4. Replacement of a radiator of the cooling system
5.12.5. Replacement of the water pump
5.12.6. Removal and installation of the thermostat
5.12.7. Removal and installation of a broad tank
5.13. System of production of the fulfilled gases
5.14. Engine power supply system
5.15. System of catching of vapors of fuel
5.16. System of recirculation of the fulfilled gases
6. Transmission
7. Running gear
8. Steering
9. Brake system
10. Electric equipment
11. Body
12. Wheels and tires
13. Purchase of spare parts
14. A trip on HUNDRED
15. Winter operation of the car
16. Preparation for checkup
17. Advice to the beginning mechanic
18. Appendices
19. Schemes of electric equipment
 








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5.12.5. Replacement of the water pump

Remove the pump for repair or replacement at emergence during its work of noise which level exceeds usual, and leaks of cooling liquid.
Dismantling of the pump quite labor-consuming therefore we recommend to replace at malfunction the pump assembled.
You will need a key hexagon "on 5".
1. Merge liquid from the cooling system (see. "Replacement of cooling liquid").
2. Take off a belt of the drive of the gas-distributing mechanism and a tension roller (see. "Replacement and adjustment of a tension of a belt of the drive of the gas-distributing mechanism and replacement of its tension roller"), the lower and back covers of the drive of the gas-distributing mechanism (see. "Removal and installation of the oil pump").
3. Turn out three screws of fastening of the pump to the block of cylinders and remove the pump together with a rubber sealing ring.

    
GOOD ADVICE
At each removal of the water pump we recommend to replace screws of its fastening new as they are subject to oxidation and after long operation can break off at a reversing. Besides, a nest in a screw head under a hexagon rather small and its sides at a reversing of the screw are rumpled. At an inhaling and a repeated reversing of the screw its damaged sides can be crumpled absolutely, and it will be very difficult to turn out the screw. For the prevention of "souring" of screws grease their carving with an anaerobic clamp of a carving.

4. Remove a sealing ring from a pump housing.

    
USEFUL TIPS
We recommend to replace at each removal of the pump a sealing ring new.
Before installation of the pump for sealing of connection and prevention of sticking of a sealing ring grease a ring with technical vaseline.

5. Install the pump in a nest of the block of cylinders, having oriented its case a pro-point (it is shown by shooters) at a case end face up, and fix by screws.
6. Establish details as it should be, the return to removal.
7. Adjust a tension of a belt of the drive of the gas-distributing mechanism (see. "Replacement and adjustment of a tension of a belt of the drive of the gas-distributing mechanism and replacement of its tension roller".
8. Fill in cooling liquid (see. "Replacement of cooling liquid").

"previous page
5.12.4. Replacement of a radiator of the cooling system
following page"
5.12.6. Removal and installation of the thermostat