Mazda 626

1991-1998 of release

Repair and operation of the car

Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
- 4. Heating and ventilation
   4.1. Introduction
   4.2. Technical characteristics
   4.3. Thermostat
   4.4. The cooling fans
   4.5. Radiator and broad tank
   4.6. Water pump
   4.7. Sensor of temperature of cooling liquid
   4.8. Oil heater of the engine (6-cylinder models)
   4.9. Electric chain of the motor of the delivery fan
   4.10. Motor of the delivery fan
   4.11. Control unit of a heater and air conditioner
   4.12. Heater radiator
   + 4.13. Systems of air conditioning and heating
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Transmissions
+ 8. Coupling and half shafts
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electrical circuitries
+ 14. Useful tips


4.6. Water pump


If the water pump is faulty, it needs to be replaced immediately, otherwise the engine can sustain serious damage because of an overheat.

1. Uncover a gas-distributing belt.
2. Examine an air vent of the water pump (it is specified by an arrow) on leak existence. If laying of the pump is worn-out, then cooling liquid will follow from this opening.
3. Check whether the pump shaft bearing is worn-out.


1. Disconnect a wire of the minus plug of the accumulator.
2. Merge cooling liquid.
3. Take off driving belts.
4. In 4-cylinder models unscrew bolts of the pump of system of strengthening of steering and shift the pump aside, without disconnecting from it hoses.
5. Remove a pulley of the water pump, a cover of a gas-distributing belt and a gas-distributing belt.
6. In 4-cylinder engines unscrew bolts (A) of an arm of the pump of the power steering, the top bolts of the water pump (B).
7. Unscrew the lower bolts of the pump (are specified by shooters).
8. In 6-cylinder engines turn off bolts of the water pump (are specified by shooters).
9. Remove the pump.
10. Clean carvings of bolts of the pump and a carving of openings in the block of cylinders.
11. Clean off the remains of old laying.
12. Apply a sealant layer on new laying and install it on the water pump.
13. Install the pump, insert and tighten bolts.

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