Oil Pump Housing: Assembly

OIL PUMP COVER
1. Install oil pump rotor assembly to oil pump housing.
  
  Fig 1: Installing Oil Pump Rotor Assembly To Oil Pump Housing
  Courtesy of SUBARU OF AMERICA, INC.
2. Align both pivots with the pivot holes of the cover, and install the oil pump cover being careful not to apply undue force to the pivots.
  1. Tightening torque: 25 N.m (2.5 kgf-m, 18.1 ft-lb)
  Fig 2: Installing Oil Pump Cover
  Courtesy of SUBARU OF AMERICA, INC.
3. After assembling, turn the oil pump shaft to check for smooth rotation of the rotor.
4. Install the oil seal retainer and new seal rings.
  After adjusting the drive pinion backlash and tooth contact.
  
  Fig 3: Installing Oil Seal Retainer & New Seal Rings
  Courtesy of SUBARU OF AMERICA, INC.
OIL SEAL RETAINER
1. Install two new oil seals to the oil seal retainer in proper position using ST.
  ST 499247300 INSTALLER
  
  Fig 4: Installing Oil Seals To Oil Seal Retainer In Position Using Special Tool
  Courtesy of SUBARU OF AMERICA, INC.
2. Install a new O-ring to the oil seal retainer using vaseline. Install the seal to oil pump housing bore.
  
  Fig 5: Installing Seal To Oil Pump Housing Bore
  Courtesy of SUBARU OF AMERICA, INC.
3. Install the oil seal and secure it using three bolts being careful not to damage oil seal lip.
  1. Tightening torque: 7 N.m (0.7 kgf-m, 5.1 ft-lb)
  Fig 6: Installing Oil Seal
  Courtesy of SUBARU OF AMERICA, INC.