Water Pump Installation

Engine. Lexus Gs430, Gs300. Uzs190 Grs190
3Gr-Fe Cooling. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL WATER PUMP ASSEMBLY

  2. REMOVE TENSIONER PULLEY

  3. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY

  4. INSTALL WATER INLET ASSEMBLY

  5. ADD ENGINE COOLANT

  6. CHECK FOR ENGINE COOLANT LEAKS

  7. INSTALL WATER PUMP PULLEY

  8. INSTALL NO. 2 ENGINE COVER

  9. INSTALL V-RIBBED BELT

  10. INSTALL V-BANK COVER SUB-ASSEMBLY

  11. INSTALL NO. 1 AIR CLEANER INLET

  12. INSTALL COOL AIR INTAKE DUCT SEAL

  13. INSTALL ENGINE UNDER COVER

  14. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

  15. PERFORM INITIALIZATION

Water Pump -- Installation



1. INSTALL WATER PUMP ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Install a new gasket and the water pump with the 16 bolts.

    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf} for bolt A
    9.1 N*m{93 kgf*cm, 81 in.*lbf}for bolts B and C
    NOTICE:
    1. Be sure to replace the 2 C bolts with new ones or reuse them after applying adhesive 1344.
    1. Make sure that there is no oil on the threads of bolt A.


2. REMOVE TENSIONER PULLEY


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Install the tensioner pulley and cover plate with the bolt (marking: L).

    Torque:
    43 N*m{438 kgf*cm, 32 ft.*lbf}
    NOTICE:
    Be careful when tightening the bolt because it is left-hand threaded.


3. INSTALL NO. 2 IDLER PULLEY SUB-ASSEMBLY


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Install the pulley and cover plate with the bolt.

    Torque:
    43 N*m{438 kgf*cm, 32 ft.*lbf}


4. INSTALL WATER INLET ASSEMBLY


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Install a new gasket to the water inlet housing.

  1. Install a new O-ring to the water outlet pipe.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Install the water inlet with the 4 bolts and nut.

    Torque:
    10 N*m{192 kgf*cm, 7 ft.*lbf}
    NOTICE:
    Be careful not to allow the O-ring to get caught between other parts.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Connect the 5 hoses.



    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Connect the 2 radiator hoses.



5. ADD ENGINE COOLANT
  1. Tighten all the plugs and fill the radiator with TOYOTA Super Long Life Coolant (SLLC).

    Torque:
    12.7 N*m{130 kgf*cm, 9 ft.*lbf} for cylinder block drain cock plug
  1. Add engine coolant.

    Specified capacity:
    9.1 liters (9.6 US qts, 8.0 lmp. qts)
    HINT:
    1. TOYOTA vehicles are filled with TOYOTA SLLC at the factory. In order to avoid damage to the engine cooling system and other technical problems, only use TOYOTA SLLC or similar high quality ethylene glycol based non-silicate, non-amine, non-nitrite, non-borate coolant with long-life hybrid organic acid technology (coolant with long-life hybrid organic acid technology consists of a combination of low phosphates and organic acids).
    1. Please contact your TOYOTA dealer for further details.
  1. Slowly pour coolant into the radiator reservoir until it reaches the FULL line.

  1. Press the inlet and outlet radiator hoses several times by hand, and then check the level of the coolant.
    If the coolant level is low, add coolant.

  1. Install the radiator cap and reservoir cap.

  1. Bleed air from the cooling system.

    1. Warm up the engine until the thermostat opens. While the thermostat is open, circulate the coolant for several minutes.

      HINT:
      Adjust the air conditioner set temperature to MAX (HOT).
    2. Maintain the engine speed at 2,000 to 2,500 rpm.

    3. Press the inlet and outlet radiator hoses several times by hand to bleed air.

      NOTICE:
      When pressing the radiator hoses:
      1. Wear protective gloves.
      1. Be careful as the radiator hoses are hot.
      1. Keep your hands away from the radiator fan.
  1. Stop the engine, and wait until the engine coolant cools down to ambient temperature.

    CAUTION:
    Do not remove the radiator cap while the engine and radiator are still hot. Pressurized, hot engine coolant and steam may be released and cause serious burns.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Check the coolant level in the radiator reservoir.
    If the coolant level is low, add SLLC to the radiator reservoir FULL line.



6. CHECK FOR ENGINE COOLANT LEAKS
  1. Check for engine coolant leaks (Click here).



7. INSTALL WATER PUMP PULLEY


Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. Temporarily install the pulley with the 4 bolts.

  1. Using SST, hold the pulley and tighten the 4 bolts.

    SST
    09960-10010(09962-01000,09963-00700)
    Torque:
    21 N*m{214 kgf*cm, 15 ft.*lbf}


8. INSTALL NO. 2 ENGINE COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the cover with the 3 nuts.



9. INSTALL V-RIBBED BELT


    Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the V-ribbed belt.

  1. While turning the belt tensioner counterclockwise, remove the bar.

    NOTICE:
    1. Put the backside of the V-ribbed belt on the tensioner pulley and idler pulley.
    2. Check that the V-ribbed belt is properly set to each pulley.


    Lexus Gs430, Gs300. Uzs190 Grs190.3Gr-Fe Cooling.Cooling System.Water Pump  Installation
  1. If it is difficult to install the V-ribbed belt, perform the following procedure.

    1. Put the V-ribbed belt on everything except the tensioner pulley as shown in the illustration.

    2. While releasing the belt tension by turning the belt tensioner counterclockwise, put the V-ribbed belt on the tensioner pulley.

      NOTICE:
      1. Put the backside of the V-ribbed belt on the tensioner pulley and idler pulley.
      2. Check that the V-ribbed belt is properly set to each pulley.


10. INSTALL V-BANK COVER SUB-ASSEMBLY
  1. Install the cover with the 2 nuts.

    Torque:
    5.0 N*m{51 kgf*cm, 44 ft.*lbf}


11. INSTALL NO. 1 AIR CLEANER INLET
  1. Install the inlet with the bolt.

    Torque:
    5.0 N*m{51 kgf*cm, 44 in.*lbf}


12. INSTALL COOL AIR INTAKE DUCT SEAL


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the duct seal with the 7 clips.



13. INSTALL ENGINE UNDER COVER


Lexus Gs430, Gs300. Uzs190 Grs190
  1. Install the under cover with the 3 clips and 10 screws.



14. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL


15. PERFORM INITIALIZATION
  1. Perform initialization (Click here).

    NOTICE:
    Certain systems need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.