Oil Pump: Installation

Install in the reverse order of removal.

Do the following:

1. Apply liquid gasket to the matching surfaces of oil pump.

   Liquid gasket: 

   Parts No. 004403007 THREE BOND 1215 or equivalent 

   Fig 1: Applying Liquid Gasket To Matching Surfaces Of Oil Pump

   Courtesy of SUBARU OF AMERICA, INC.
2. Replace the O-ring (A) with a new one.
3. Apply a coat of engine oil to the inside of oil seal.
   Fig 2: Applying Coat Of Engine Oil To Inside Of Oil Seal

   Courtesy of SUBARU OF AMERICA, INC.
4. Be careful not to scratch the oil seal when installing oil pump on cylinder block.
5. Position the oil pump, aligning the notched area with crankshaft, and push the oil pump straight.
   CAUTION: Make sure the oil seal lip is not folded. 
6. Install the oil pump.

   Tightening torque: 

   6.4 N.m (0.65 kgf-m, 4.7 ft-lb) 

   Fig 3: Installing Oil Pump

   Courtesy of SUBARU OF AMERICA, INC.