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Home >> Subaru >> 2019 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System >> Oil Pump ASSY (FA20) >> Installation

Oil Pump ASSY (FA20): Installation

  1. Chain cover installation
    1. Apply a coat of engine oil to four new O-rings and install them to the engine.
    2. Before applying the liquid gasket, completely remove the old seal material on the sealing portion.
    3. If there are gaps at the locations as shown in the figure, fill the gaps with THREE BOND 1217G/1217H or equivalent.
      G11259166Courtesy of SUBARU OF AMERICA, INC.
    4. Apply THREE BOND 1217G/1217H or equivalent to the locations of chain cover as shown in the figure.
      G12587212Courtesy of SUBARU OF AMERICA, INC.
      CAUTION:
      • Clean and degrease the installation surface.
      • Install within 5 min. after applying liquid gasket.
      • The chain cover may contact the protrusion "a" of the sensor plate of the cam sprocket and cause damage. Therefore, for installation, move horizontally and set the chain cover while being careful not to let the chain cover contact to the cam sprocket.
        G11259135Courtesy of SUBARU OF AMERICA, INC.
      • Do not fill the engine oil within 2 hours after the installation.
      • Do not start the engine within 2 hours after the installation.
    5. Temporarily install the chain cover with the 32 bolts.
    6. Fully tighten the 32 bolts in the order as shown in the figure.
      Fig 1: Chain Cover Bolts Tightening Sequence
      G12587214Courtesy of SUBARU OF AMERICA, INC.

      Standard value: Bolts A, B

      T=10N.m {102kgf.cm} {7.4ft.lbf} 

      Bolt C, D

      T=25N.m {255kgf.cm} {18.4ft.lbf} 

    NOTE:
    Bolt type Bolt length (except for head) Bolt type Bolt length (except for head)
    Bolt A 20 mm {0.787 in} Bolt B 50 mm {1.969 in}
    Bolt C 25 mm {0.984 in} Bolt D 60 mm {2.362 in}
  2. Chain cover oil seal installation (Refer to INSTALLATION )
  3. Idler pulley SUB-ASSY NO. 1 installation
    1. Install the idler pulley cover as shown in the figure.
      G12587215Courtesy of SUBARU OF AMERICA, INC.
    2. Install the idler pulley SUB-ASSY NO. 1 and idler pulley cover with the bolt.

      Standard value:T=36N.m {367kgf.cm} {26.6ft.lbf} 

    3. Install the idler pulley cover as shown in the figure.
      G12587216Courtesy of SUBARU OF AMERICA, INC.
    4. Install the idler pulley SUB-ASSY NO. 1 and idler pulley cover with the bolt.

      Standard value:T=36N.m {367kgf.cm} {26.6ft.lbf} 

  4. Installation of the alternator bracket
    1. Temporarily install the alternator bracket with four bolts.
    2. Tighten the four bolts in the order as shown in the figure.

      Standard value:T=36N.m {367kgf.cm} {26.6ft.lbf} 

      G12587217Courtesy of SUBARU OF AMERICA, INC.
  5. V-ribbed belt tensioner ASSY installation
    NOTE: V-ribbed belt tensioner ASSY can be installed together with the alternator bracket.
    1. Align the anti-rotation pin and the pin fixing hole. Use a 8-mm socket hexagon wrench to install the V-ribbed belt tensioner ASSY.

      Standard value: Tightening torque=25N.m { 255 kgf-cm} {18.4ft-lbf}

    2. Install the cap.
      G12587218Courtesy of SUBARU OF AMERICA, INC.
  6. Idler pulley SUB-ASSY NO. 2 installation
    1. Install the idler pulley cover as shown in the figure.
    2. Install the idler pulley SUB-ASSY NO. 2 and idler pulley cover with the bolt.

      Standard value:T=36N.m {367kgf.cm} {26.6ft.lbf} 

  7. Oil level gauge guide installation
    1. Install a new O-ring to the oil level gauge guide.
    2. Apply engine oil to the O-ring and install the oil level gauge guide with the bolt.

      Standard value:T=6.4N.m {65kgf.cm} {4.7ft.lbf} 

    3. Install the oil level gauge.
  8. Engine wiring connection
    1. Connect the connector of cam position sensor and connector of cam timing oil control valve ASSY.
    2. Connect the clamp.
    3. Connect the connector of engine oil temperature sensor and connector of engine oil pressure switch ASSY.
    4. Connect the connector of cam position sensor and connector of cam timing oil control valve ASSY.
    5. Connect the two connectors of cam position sensor and connector of cam timing oil control valve ASSY.
    6. Connect the connector for camshaft position sensor.
    7. Install the wiring harness clamp bracket and wiring harness with the bolt.

      Standard value:T=6.4N.m {65kgf.cm} {4.7ft.lbf} 

    8. Install the two wiring harness clamp brackets and wiring harness with the bolt.

      Standard value:T=6.4N.m {65kgf.cm} {4.7ft.lbf} 

  9. Installation of intake manifold protector (bank 1 side) (Refer to INSTALLATION , Step 8)
  10. Crankshaft pulley installation (Refer to INSTALLATION , Step 2)
  11. Water pump pulley installation (Refer to INSTALLATION )
  12. Connection of radiator outlet hose (Refer to INSTALLATION , Step 78)
  13. Exhaust manifold installation (Refer to INSTALLATION )
  14. Water filler SUB-ASSY installation (Refer to INSTALLATION , Step 93)
  15. Radiator reservoir tank ASSY installation (Refer to INSTALLATION , Step 16)
  16. Installation of injector driver (Refer to INSTALLATION )
  17. Generator ASSY installation (Refer to INSTALLATION )
  18. Connection of the battery ground terminal

    Standard value:T=6.0N.m {61kgf.cm} {4.4ft.lbf} 

  19. Replenishing of coolant (SUBARU Super Coolant) (Refer to COOLANT (FA20) )
  20. Engine oil refill (Refer to ENGINE OIL PRESSURE SWITCH ASSY (FA20) )
  21. Engine oil level check (Refer to LUBRICATION SYSTEM (FA20) )
  22. Leak check of coolant (SUBARU Super Coolant) (Refer to COOLING SYSTEM (FA20) )
  23. Engine oil leakage check (Refer to ENGINE OIL PRESSURE SWITCH ASSY (FA20) )