Pic. 2.174. Centrifugal Coolant Pump Components
Withdrawal
Drain the coolant and disconnect the coolant supply pipe connecting hose from the coolant pump.
Remove the alternator drive belt and coolant pump pulley.
Remove the timing belt covers and timing belt idler.
Turn away bolts of fastening of the pump of a cooling liquid, then remove an adjusting lath of the generator.
Remove the water pump assembly from the cylinder block.
Examination
Check each part for cracks, damage or wear, and replace the water pump assembly if necessary.
Check the bearing for damage, excessive running noise and slow rotation, and replace the water pump assembly if necessary.
Pic. 2.175. Checking the coolant pump
Check pump for fluid leaks. Leaks through the hole «WITH» (pic. 2.175) indicate leaks in the pump shaft seals. If there are leaks, replace the pump.
Installation
Clean the mating surfaces of the water pump and cylinder block.
Install the timing gear covers.
Install the water pump pulley and drive belt, adjust the drive belt tension.
Fill the system with coolant.
Start the engine and check for fluid leaks.
Pic. 2.176. Bolts of fastening of the pump of a cooling liquid
Install the water pump with a new gasket and tighten the mounting bolts to the specified torque (pic. 2.176).
The moment of an inhaling of bolts of fastening of the water pump to the block of cylinders:
- 1.6 l engines - bolts «A» 12–15 Nm, bolts «IN» 20–27 Nm;
- engines with a working volume of 1.8 l - 20–27 Nm.
(bolt length 28 mm)