Remove/install coolant pump

AR20.10-B-1271TF

Remove/install coolant pump

02.04.2019

Engine

460.9 in model 934, 938

1

Thermostatic valves

2

Bolt

3

Coolant pump pulley

4

Bolt

5

Water pump

6

Water pump gasket

7

Inlet tube

8

Gasket

 

Remove/install

1

Remove the belts of water pump

AR13.21-B-2000TF

2

Remove the thermostatic valves (1)

AR20.10-B-2460TC

3

Unscrew the bolts (2) and remove the coolant pump pulley (3)

 Coolant pump pulley

*BA20.10-B-1004-01G

4

Remove the inlet tube (7) of the water pump (5)

AR20.20-B-7440-03C

 Replace the gasket (8).

 Coolant intake mouth and/or tubes (cooling tubes)

*BA20.10-B-1002-01G

 Intake tube support to the engine block

*BA09.20-B-1002-01C

 Intake tube to the support

*BA09.20-B-1001-01C

5

Loose the bolts (4) and remove the water pump (5) and the gasket water pump (6)

 Installation: Clean the sealing surfaces and replace the gasket water pump (6).

 Coolant pump in the engine block

*BA20.10-B-1003-01G

6

Installation in reverse order

 Intake manifold

Number

Designation

Engine 457.9; 460.984

BA09.20-B-1001-01C

Intake tube to the support

M8

Nm

30

M10

Nm

60

M12

Nm

110

 Intake manifold

Number

Designation

Engine 457.9; 460.984

BA09.20-B-1002-01C

Intake tube support to the engine block

Nm

80

 Coolant pump, thermostat

Number

Designation

Engine 457.9, 460.984

BA20.10-B-1002-01G

Coolant intake mouth and/or tubes (cooling tubes)

M8

Nm

25

M10

Nm

50

 Coolant pump, thermostat

Number

Designation

Engine 457.9, 460.984

BA20.10-B-1003-01G

Coolant pump in the engine block

Nm

30

 Coolant pump, thermostat

Number

Designation

Engine 457.9, 460.984

BA20.10-B-1004-01G

Coolant pump pulley

Nm

25