LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2006 >> LS 430 >> Repair and Diagnosis >> Engine Mechanical >> Cooling Fan >> Water Pump ASSY >> Replacement

Water Pump ASSY: Replacement

  1. DISCONNECT BATTERY NEGATIVE TERMINAL 
  2. DRAIN ENGINE COOLANT (See  REPLACEMENT   ) 
  3. REMOVE ENGINE UNDER COVER NO.1 
  4. REMOVE RADIATOR ASSY 
  5. REMOVE TIMING BELT (See  REPLACEMENT  ) 
  6. REMOVE WATER INLET HOUSING 
    1. Disconnect the water hose and remove the 2 bolts, inlet housing and O-ring.
      Fig 1: Disconnecting Water Hose
      G02997704Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  7. REMOVE TIMING BELT IDLER SUB-ASSY NO.2 (See  OVERHAUL  ) 
  8. REMOVE WATER PUMP ASSY 
    1. Remove the 5 bolts, water pump and gasket.
      Fig 2: Removing Bolts, Water Pump And Gasket
      G02997705Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  9. INSTALL WATER PUMP ASSY 
    1. Install a new gasket and the water pump with the 5 bolts, 2 stud bolts and nut.
    1. Torque: 
    2. 21 N m (215 kgf cm, 15 ft lbf) for bolt 
    3. 18 N m (185 kgf cm, 13 ft lbf) for stud bolt 

    HINT:

    Use a bolt this is 30 mm (1.18 in.) in length.

    NOTE: Uniformly tighten the bolts, stud bolts and nuts. Tighten them little by little in diagonal pairs. For example, after tightening an upper-right side bolt 30 %; or after tighten a lower-left side bolt 30 %; or after tightening a left side bolt 30 %, tighten a right side bolt 30 %.
    Fig 3: Installing Water Inlet Housing
    G02997706Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. INSTALL WATER INLET HOUSING 
    1. Install a new O-ring.
    2. Apply soapy water to the O-ring.
    3. Apply seal packing to the groove of the water inlet housing as shown in the illustration.
      1. Seal packing: Part No. 08826-00100 or equivalent 
      NOTE:
      • After applying seal packing, install the part within 5 minutes.
      • Be sure to keep this O-ring away from engine oil. The O-ring must be replaced if it contacts engine oil.
    4. Install the water inlet housing with the 2 bolts. Then connect the water hose.
    1. Bolt length: 
    2. 75 mm (2.95 in.) for bolt A 
    3. 25 mm (0.98 in.) for bolt B 
    Fig 4: Installing Water Inlet Housing With Bolts
    G02997707Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. INSTALL TIMING BELT IDLER SUB-ASSY NO.2 (See  OVERHAUL  ) 
  12. INSTALL TIMING BELT (See  REPLACEMENT  ) 
  13. INSTALL RADIATOR ASSY (See  REPLACEMENT   ) 
  14. REFILL ENGINE COOLANT (See  REPLACEMENT   ) 
  15. CONNECT BATTERY NEGATIVE TERMINAL 
    NOTE: When disconnecting the negative (-) battery terminal, initialize the following systems after the terminal is reconnected (see INITIALIZATION ).
  16. CHECK FOR ENGINE COOLANT LEAKS (See  ON-VEHICLE INSPECTION   ) 
  17. INSTALL ENGINE UNDER COVER NO.1 
scientia non olet · About LEMON Manuals