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Home >> Subaru >> 2018 >> WRX STI Limited >> Repair and Diagnosis >> Engine Mechanical >> Engine Lubrication System (STI) >> Oil Pan And Strainer >> Installation With Torque Specification

Installation With Torque Specification

NOTE: Before installing the oil pan, clean the mating surface of oil pan and engine block.
  1. Install the clutch housing cover.

    Tightening torque:

    5 N.m (0.5 kgf-m, 3.7 ft-lb)

  2. Make sure that the seals (A) are installed securely on the baffle plate in a direction as shown in the figure below.
    NOTE: Use a new seal.
    G04997904
  3. Install the baffle plate.

    Tightening torque:

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

  4. Install the oil strainer to cylinder block.
    NOTE: Use new O-rings.

    Tightening torque:

    10 N.m (1.0 kgf-m, 7.4 ft-lb)

  5. Tighten the oil strainer stay together with the baffle plate.

    Tightening torque:

    6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

  6. Apply liquid gasket to the mating surfaces of oil pan, and install the oil pan.
    NOTE:
    • Use a new gasket.
    • Install within 5 min. after applying liquid gasket.

    Liquid gasket:

    THREE BOND 1217G (Part No. K0877Y0100), THREE BOND 1217H or equivalent

    G12438099
  7. Tighten the bolts which install oil pan to cylinder block.

    Tightening torque:

    T1: 5 N.m (0.5 kgf-m, 3.7 ft-lb)

    T2: 6.4 N.m (0.7 kgf-m, 4.7 ft-lb)

    T3: 10 N.m (1.0 kgf-m, 7.4 ft-lb)

    Fig 1: Oil Pan To Cylinder Block Components
    G12438100Courtesy of SUBARU OF AMERICA, INC.
  8. Lower the engine onto front crossmember.
  9. Install the nuts which hold the engine mounting to the front crossmember.
    NOTE: Use a new nut.

    Tightening torque:

    60 N.m (6.1 kgf-m, 44.3 ft-lb)

    G10265261
  10. Install the front exhaust pipe. Ref. to EXHAUST(STI)>Front Exhaust Pipe>INSTALLATION .
  11. Install the under cover. Ref. to EXTERIOR/INTERIOR TRIM>Front Under Cover>INSTALLATION .
  12. Lower the vehicle.
    CAUTION: When lowering the vehicle, lower the lift up device and wire ropes at the same time.
  13. Remove the lifting device and wire ropes.
    G04997613
  14. Install the pitching stopper.

    Tightening torque:

    T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb)

    T2: 58 N.m (5.9 kgf-m, 42.8 ft-lb)

    G10265630
  15. Install the radiator upper brackets.

    Tightening torque:

    12 N.m (1.2 kgf-m, 8.9 ft-lb)

    G10265568
  16. Install the air intake boot.

    Tightening torque:

    2.5 N.m (0.3 kgf-m, 1.8 ft-lb)

    G12437186
  17. Install the intercooler. Ref. to INTAKE (INDUCTION) (STI)>Intercooler>INSTALLATION .
  18. Install the air intake duct. Ref. to INTAKE (INDUCTION) (STI)>Air Intake Duct>INSTALLATION .
  19. Connect the battery ground terminal.
  20. Refill the engine oil. Ref. to LUBRICATION(STI)>Engine Oil>REPLACEMENT .