Oil Pump: Assembly

1. Install the front oil seal using ST.

   ST 499587100 OIL SEAL INSTALLER

   NOTE: Use a new oil seal.
   Fig 1: Installing Front Oil Seal Using Special Tool

   Courtesy of SUBARU OF AMERICA, INC.
2. Apply a coat of engine oil to the inner and outer rotors.
3. Install the inner and outer rotors in their original positions.
4. Install the oil relief valve and relief valve spring and plug.
   NOTE: Use a new gasket.
5. Install the oil pump cover.

Tightening torque: 

T1:5.4 N.m (0.55 kgf-m, 4.0 ft-lb) 

72: 44 N.m (4.5 kgf-m, 32.5 ft-lb) 

Fig 2: Installing Oil Pump Cover

Courtesy of SUBARU OF AMERICA, INC.