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Water Pump: Installation

WARNING: This page is about a different car, the 2003 Subaru Outback, 2003 Subaru Legacy, and 2003 Subaru Baja. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install water pump onto left-hand cylinder block.
    NOTE:
    • Replace gasket with a new one.
    • When installing water pump, tighten bolts in two stages in alphabetical sequence as shown in figure.

    Tightening torque: 

    1. First:  12 N.m (1.2 kgf-m, 8.7 ft-lb)
    2. Second:  12 N.m (1.2 kgf-m, 8.7 ft-lb)
    Fig 1: Installing Water Pump Onto Left-Hand Cylinder Block
    G02874343Courtesy of SUBARU OF AMERICA, INC.
  2. Install tensioner bracket.
    1. Tightening torque:  25 N.m (2.5 kgf-m, 18.1 ft-lb)
    Fig 2: Installing Tensioner Bracket
    G02874344Courtesy of SUBARU OF AMERICA, INC.
  3. Install left-hand belt cover No. 2.
    1. Tightening torque:  5 N.m (0.5 kgf-m, 3.6 ft-lb)
    Fig 3: Installing Left-Hand Belt Cover
    G02874345Courtesy of SUBARU OF AMERICA, INC.
  4. Install left-hand camshaft sprockets by using ST.
    1. ST 18231AA010 CAMSHAFT SPROCKET WRENCH
    1. Tightening torque:  78 N.m (8.0 kgf-m, 57.9 ft-lb)
    Fig 4: Installing Left-Hand Camshaft Sprockets
    G02874346Courtesy of SUBARU OF AMERICA, INC.
  5. Install belt idler No. 2.
    1. Tightening torque:  39 N.m (4.0 kgf-m, 28.9 ft-lb)
    Fig 5: Installing Belt Idler
    G02874347Courtesy of SUBARU OF AMERICA, INC.
  6. Install automatic belt tension adjuster which tension rod is held with pin. < Ref. to BELT IDLER AND AUTOMATIC BELT TENSION ADJUSTER ASSEMBLY AND BELT IDLER , INSTALLATION, Timing Belt Assembly.>
  7. Install timing belt. < Ref. to TIMING BELT , INSTALLATION, Timing Belt Assembly.>
  8. Install V-belts. < Ref. to INSTALLATION , V-belt.>
  9. Install radiator main fan and sub fan motor assemblies. < Ref. to INSTALLATION , Radiator Main Fan and Fan Motor . > and < Ref. to INSTALLATION , Radiator Sub Fan and Fan Motor.>
  10. Install reservoir tank.
    Fig 6: Installing Reservoir Tank
    G02874348Courtesy of SUBARU OF AMERICA, INC.
  11. Connect overflow hose.
    Fig 7: Connecting Overflow Hose
    G02874349Courtesy of SUBARU OF AMERICA, INC.
  12. Install air intake duct.
    Fig 8: Installing Air Intake Duct
    G02874350Courtesy of SUBARU OF AMERICA, INC.
  13. Lift-up the vehicle.
  14. Connect radiator outlet hose and heater bypass hose to water pump.
    Fig 9: Connecting Radiator Outlet Hose & Heater Bypass Hose To Water Pump
    G02874351Courtesy of SUBARU OF AMERICA, INC.
  15. Connect connectors to radiator main fan (A) and sub fan (B) motors.
    Fig 10: Connecting Connectors To Radiator Main Fan & Sub Fan Motors
    G02874352Courtesy of SUBARU OF AMERICA, INC.
  16. Install undercover.
    Fig 11: Installing Undercover
    G02874353Courtesy of SUBARU OF AMERICA, INC.
  17. Lower the vehicle.
  18. Connect battery ground cable.
    Fig 12: Connecting Battery Ground Cable
    G02874354Courtesy of SUBARU OF AMERICA, INC.
  19. Fill coolant. < Ref. to FILLING OF ENGINE COOLANT , REPLACEMENT, Engine Coolant.>
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