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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System (Except For STI) >> Water Pipe Assembly >> Installation >> Water Pipe Assembly LH

Water Pipe Assembly LH

  1. Set the water pipe assembly LH on the engine, and connect the water pipe hose LH (D) to the oil pan upper.
  2. Install the bolt (C) which secures the water pipe assembly LH to the cylinder head LH.

    Tightening Torque: 

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

  3. Connect the side engine oil cooler hose B (B) to the water pipe assembly LH.
  4. Install the rear oxygen sensor connector (A) to the water pipe assembly LH.
    G10267221
  5. Lower the vehicle.
  6. Support the engine with a lifting device and wire ropes.
    G08316851
  7. Lift the engine a little, and remove the ST.
    CAUTION: When lifting up the engine, pay attention to the clearance of each part and be careful not to lift the engine too much, in order to prevent damaging the vehicle.

    ST 18632AA030 STAND ASSY 

    G10266836
  8. Lower the engine and remove the lifting device and wire ropes.
    G08316851
  9. 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)

    G10266704
  10. Connect the preheater hose (A) and the heater outlet hose (B) to the water pipe assembly LH.
    G09480763
  11. Install the bolt which secures the water pipe assembly LH to the cylinder head LH.

    Tightening Torque: 

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

    G10292255
  12. Install the intercooler. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Intercooler>INSTALLATION .
  13. Insert the engine control module (ECM) to the bracket.
    G10266257
  14. Install the bolt which secures the engine control module (ECM) to the bracket, and then secure the engine wiring harness and bulkhead harness to the bracket with clip (A) and clip (B).

    Tightening Torque: 

    7.5 N.m (0.8 kgf-m, 5.5 ft-lb)

    G10266252
  15. Lift up the vehicle.
  16. Install the nuts which hold the engine mounting to the front crossmember.
    NOTE:
    • Use a new nut.
    • Make sure that locators (a) of the engine mounting are securely inserted.

    Tightening Torque: 

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

    G10266857
  17. Install the center exhaust pipe. Ref. to EXHAUST(EXCEPT FOR STI)>Center Exhaust Pipe>INSTALLATION .
  18. Install the air intake duct. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Air Intake Duct>INSTALLATION .
  19. Connect the ground terminal to battery sensor. Ref. to NOTE>NOTE>BATTERY .
  20. Fill engine coolant. Ref. to COOLING(EXCEPT FOR STI)>Engine Coolant>REPLACEMENT>FILLING OF ENGINE COOLANT .
  21. Install the collector cover. Ref. to INTAKE (INDUCTION) (EXCEPT FOR STI)>Collector Cover>INSTALLATION .
  22. Set the front hood to the normal position. Ref. to NOTE>NOTE>FRONT HOOD DAMPER STAY .
  23. Install the striker - front hood. Ref. to EXTERIOR BODY PANELS>Front Hood>ASSEMBLY .
  24. Close the front hood.
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