Water pump (FA20)
Components Inspection Removal / installation
COOLING
WATER PUMP (FA20)
EXPLODED VIEW
REMOVAL
1. Removal of under cover front AL (Refer to 
)
)2. Draining of coolant (SUBARU Super Coolant) (Refer to )
)3. Removal of fan & generator V-belt (Refer to )
)4. Removal of exhaust manifold (Refer to )
)
5. Removal of water pump pulley
(1) Use the SST to secure the water pump pulley.
SST
18355AA000
18334AA030
(2) Remove the three bolts and remove the water pump pulley.
6. Removal of engine water pump ASSY
(1) Remove the five bolts and remove the engine water pump ASSY and gasket.
INSTALLATION
1. Engine water pump ASSY installation
(1) Install a new gasket and install the engine water pump ASSY with the five bolts.
Standard value:
Standard value:
Tightening torque=6.4N·m
{
65kgf·cm}
{4.7ft·lbf}
2. Water pump pulley installation
(1) Temporarily tighten the three bolts to secure the water pump pulley.
(2) Use the SST to secure the water pump pulley.
SST
18355AA000
18334AA030
(3) Tighten the three bolts.
Standard value:
Standard value:
Tightening torque=14N·m
{
143kgf·cm}
{10.3ft·lbf}
3. Installation of exhaust manifold (Refer to )
)4. Installation of fan & generator V-belt (Refer to )
)5. Replenishing of coolant (SUBARU Super Coolant) (Refer to )
)6. Leak check of coolant (SUBARU Super Coolant) (Refer to )
)7. Under cover front AL installation (Refer to )
)ON-VEHICLE INSPECTION
1. Engine water pump ASSY check
(1) Make sure that there is no bearing noise and drag.
NOTE:
If noise or drag is noted, replace the engine water pump ASSY.
(2) Make sure that the water pump pulley has no fault.
(3) Check the impeller for damage or abnormal deformation.
NOTE:
If the impeller is scratched or abnormally deformed, replace the engine water pump ASSY.