1151 Water Pump
B36 ENGINE (COOPER BASE):
TIGHTENING TORQUE SPECIFICATION (COOLANT PUMP)
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Coolant pump to crankcase | B32S15M0/B38M0/U0/B36M0 | M6x30 Replace aluminum screws. If reusing the APPLY LIQUID SEAL COMPOUND 2.2 . |
Joining torque Angle of rotation |
3 Nm 90° |
| 2AZ Coolant pump to component carrier | B32S15M0/B38M0/U0/B36M0 | M6 | If reusing then you must apply liquid seal compound 2.2. | 10 Nm |
| 3AZ Coolant pump housing/component carrier to crankcase | B32S15M0/B38M0/U0/B36M0 | M8x35 | If reusing the APPLY LIQUID SEAL 2.2 . | 19 Nm |
| 4AZ Auxiliary coolant pump to engine block | B32S15M0/B38M0/U0/B36M0 | M8x22 | 19 Nm | |
| 5AZ Coolant pump housing/component carrier to crankcase | B32S15M0/B38M0/U0/B36M0 | M 10x35 | If reusing then you must apply liquid seal compound 2.2. | 38 Nm |
B46 AND B48 ENGINES (COOPER S AND JCW):
11 51 COOLANT PUMP - TIGHTENING TORQUE SPECIFICATION
| Type | Thread | Tightening specifications | Dimension | |
|---|---|---|---|---|
| 1AZ Coolant pump to component carrier | B42S2000/B46M0/O0/B48M0/O0 | M6 | If the coolant pump is reused apply liquid seal 2.2. | 10 Nm |
| 2AZ Thermostat cover to component carrier | B42S2000/B46M0/O0/B48M0/O0 | M6 | 10 Nm | |
| 3AZ Coolant pump housing/component carrier to crankcase | B42S2000/B46M0/O0/B48M0/O0 | M8x35 | 19 Nm | |
| 4AZ Auxiliary coolant pump to engine block | B42S2000/B46M0/O0/B48M0/O0 | M8x22 | 19 Nm | |
| 5AZ Electric coolant pump to holder | B42S2000/B46M0/O0/B48M0/O0 | hexagon nut M6 | 8 Nm | |
| 6AZ Auxiliary coolant pump holder to cylinder head | B42S2000/B46M0/O0/B48M0/O0 | M6x16 | 8 Nm | |
| 7AZ Belt pulley to coolant pump | B42S2000/B46M0/O0/B48M0/O0 | M6x16 | If the screws are reused, clean the thread and coat with Loctite 243. | 8 Nm |