2.5 L Model

Install oil pump to bracket.
1. Place oil pump bracket in a vise. Tighten bushing using a 12.7 mm (1/2") type 14- and 21- mm box wrench until it is in contact with oil pump mounting surface.
  CAUTION: Do not place oil pump bracket directly in the vise; use soft pads and hold oil pump lightly to protect the pump.
  
  Fig 1: Installing Oil Pump To Bracket
  Courtesy of SUBARU OF AMERICA, INC.
2. Tighten bolt which installs oil pump and switch bracket to bracket.
1. Tightening torque: 37.3 N.m (3.8 kgf-m, 27.5 ft-lb)
Fig 2: Installing Oil Pump & Switch Bracket Bolts
Courtesy of SUBARU OF AMERICA, INC.
1. Tightening torque: 15.7 N.m (1.6 kgf-m, 11.6 ft-lb)
Fig 3: Installing Bolts To Front Side Of Oil Pump
Courtesy of SUBARU OF AMERICA, INC.
Install socket to oil pump.
1. Tightening torque: 6.5 N.m (0.66 kgf-m, 4.8 ft-lb)
Fig 4: Installing Socket To Oil Pump
Courtesy of SUBARU OF AMERICA, INC.
Tighten bolts which install power steering pump bracket.
1. Tightening torque: 22 N.m (2.2 kgf-m, 15.9 ft-lb)
Fig 5: Tightening Power Steering Pump Bracket Bolts
Courtesy of SUBARU OF AMERICA, INC.
Interconnect pipes C and suction hose.
Tightening torque:
1. Joint nut: 39.2 N.m (4 kgf-m, 28.9 ft-lb)
CAUTION: If a hose is twisted at this step, the hose may come into contact with some other parts.

Fig 6: Interconnecting Pipes C & Suction Hose
Courtesy of SUBARU OF AMERICA, INC.
Connect connector to power steering oil pressure switch.
Install pulley belt to oil pump.
Check pulley belt tension. < Ref. to V-BELT (H4SO)> and < Ref. to V-BELT (H6DO).>
Tighten lock bolt.
1. Tightening torque: 24.5 N.m (2.5 kgf-m, 18.1 ft-lb)
Tighten bolt belt tension.
1. Tightening torque: 8 N.m (0.8 kgf-m, 5.8 ft-lb)
Install pulley belt cover bracket.
Connect ground terminal of battery.
Feed the specified power steering fluid < Ref. to POWER STEERING FLUID .>
CAUTION: Never start the engine before feeding the fluid; otherwise vane pump might be seized up.