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Home >> Subaru >> 2020 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Engine Cooling System) >> Water Pipe >> Installation >> Water Pipe LH

Water Pipe LH

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the preheater hose to the throttle body.
    G14601346Courtesy of SUBARU OF AMERICA, INC.
  2. Temporarily install the water pipe LH with a new O-ring.
  3. Tighten the bolts in the numerical order as shown in the figure.

    Tightening torque: 

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

    Fig 1: Water Pipe LH Bolts Tightening Sequence
    G14601358Courtesy of SUBARU OF AMERICA, INC.
  4. Lower the engine and remove the lifting device and wire ropes.
  5. Remove the ST1 and ST2 from the engine unit.
    G14610740Courtesy of SUBARU OF AMERICA, INC.
  6. Install the nuts which hold the engine mounting to the crossmember COMPL front.
    CAUTION:

    Be sure to use a new nut. 

    NOTE:

    Make sure that locators (a) of the engine mounting are securely inserted. 

    Tightening torque: 

    90 N.m (9.2 kgf-m, 66.4 ft-lb)

    G14610607Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the ST from between the vehicle and the rear crossmember. (CVT model)
    1. Set the transmission jack to the transmission body.
      NOTE:

      Be careful that the support plate of transmission jack does not touch the transmission oil pan. 

    2. Remove the ST from between the vehicle and the rear crossmember.
      G14610579Courtesy of SUBARU OF AMERICA, INC.
    3. Operate the transmission jack to adjust the transmission body height, and install the bolts securing the rear crossmember to the vehicle.

      Tightening torque: 

      70 N.m (7.1 kgf-m, 51.6 ft-lb)

      G14610578Courtesy of SUBARU OF AMERICA, INC.
    4. Install the center exhaust cover.

      Tightening torque: 

      18 N.m (1.8 kgf-m, 13.3 ft-lb)

      G14610577Courtesy of SUBARU OF AMERICA, INC.
    5. Remove the transmission jack.
  8. Connect the connector to the water pipe LH, and connect the water hose.
    G14601338Courtesy of SUBARU OF AMERICA, INC.
  9. Install the front exhaust pipe. Ref. to EXHAUST (H4DOTC)>FRONT EXHAUST PIPE>INSTALLATION .
  10. Install the pitching stopper.

    CVT model: 

    Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION MOUNTING SYSTEM>INSTALLATION>PITCHING STOPPER .

    MT model: 

    Ref. to MANUAL TRANSMISSION AND DIFFERENTIAL (TY75)>TRANSMISSION MOUNTING SYSTEM>INSTALLATION>PITCHING STOPPER .

  11. Connect the preheater hose (A) and the hose heater outlet (B) to the water pipe LH.
    G14601337Courtesy of SUBARU OF AMERICA, INC.
  12. Install the intercooler. Ref. to INTAKE (INDUCTION) (H4DOTC)>INTERCOOLER>INSTALLATION .
  13. Install the air intake duct. Ref. to INTAKE (INDUCTION) (H4DOTC)>AIR INTAKE DUCT>INSTALLATION .
  14. Install the V-belt cover.
    NOTE:
    • Check the grommet for peel-off or disengagement. 
    • Be careful not to deform the bracket during installation. 

    Tightening torque: 

    7 N.m (0.7 kgf-m, 5.2 ft-lb)

    G14600900Courtesy of SUBARU OF AMERICA, INC.
  15. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>NOTE>BATTERY .
  16. Fill engine coolant. Ref. to COOLING (H4DOTC)>ENGINE COOLANT>REPLACEMENT>FILLING OF ENGINE COOLANT .
  17. Set the panel COMPL front hood to the normal position. Ref. to REPAIR CONTENTS>NOTE>FRONT HOOD GAS STAY .
  18. Install the striker assembly front hood. Ref. to EXTERIOR BODY PANELS>FRONT HOOD>ASSEMBLY .
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