Oil Pump: Assembly

Install the front oil seal by using ST.
ST 499587100 OIL SEAL INSTALLER

NOTE: Use a new oil seal.

Fig 1: Installing Front Oil Seal Using Crank Pulley Wrench ST 499587100
Courtesy of SUBARU OF AMERICA, INC.
Apply a coat of engine oil to the inner and outer rotors.
Install the inner and outer rotors in their original positions.
Install the oil relief valve and relief valve spring and plug.
NOTE: Use a new gasket.
Install the oil pump cover.
Tightening torque:

T1:5 Nm (0.5 kgf-m, 3.6 ft-lb)

T2: 44 Nm (4.5 kgf-m, 32.5 ft-lb)

Fig 2: Installing Oil Pump Cover
Courtesy of SUBARU OF AMERICA, INC.