Lexus GX470 2003-06

Front Crankshaft Seal

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Removal & Installation



  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Engine under cover
     
    Engine appearance cover
     
    Air intake assembly
     
    Accessory drive belt
     
    Cooling fan and pulley
     
    Radiator
     
    Drive belt idler pulley
     
    Camshaft Position (CMP) sensor connector
     
    Upper timing covers
     
    Oil cooler pipe
     
    Center timing cover
     
    A/C compressor
     
    Cooling fan bracket
     
    Crankshaft pulley
     
    Lower timing cover
     
    Timing belt.
     
    Crankshaft timing sprocket
     
    Front crankshaft seal
     

  6.  

To install:

  1. Install the oil seal so that it is flush with the oil pump housing.
  2.  
  3. Install or connect the following:

    Crankshaft timing sprocket
     
    Timing belt
     
    Lower timing cover
     
    Crankshaft pulley. Tighten the bolt to 181 ft. lbs. (245 Nm).
     
    Cooling fan bracket. Tighten the 12mm bolts to 12 ft. lbs. (16 Nm) and the 14mm bolts to 24 ft. lbs. (32 Nm).
     
    A/C compressor
     
    Center timing cover
     
    Oil cooler pipe
     
    Upper timing covers
     
    CMP sensor connector
     
    Drive belt idler pulley. Tighten the bolt to 27 ft. lbs. (37 Nm).
     
    Radiator
     
    Cooling fan and pulley. Tighten the nuts to 16 ft. lbs. (21 Nm).
     
    Accessory drive belt
     
    Air intake assembly
     
    Engine appearance cover
     
    Engine under cover
     
    Negative battery cable
     

  4.  
  5. Fill the cooling system.
  6.  
  7. Start the engine and check for leaks.
  8.  

  1. Before servicing the vehicle, refer to the Precautions section.
  2.  
  3. Drain the cooling system.
  4.  
  5. Remove or disconnect the following:

    Negative battery cable
     
    Engine under cover
     
    Engine appearance cover
     
    Air intake assembly
     
    Accessory drive belt
     
    Cooling fan and pulley
     
    Radiator
     
    Drive belt idler pulley
     
    Camshaft Position (CMP) sensor connector
     
    Upper timing covers
     
    Oil cooler pipe
     
    Center timing cover
     
    A/C compressor
     
    Cooling fan bracket
     
    Crankshaft pulley
     
    Lower timing cover
     
    Timing belt.
     
    Crankshaft timing sprocket
     
    Front crankshaft seal
     

  6.  

To install:

  1. Install the oil seal so that it is flush with the oil pump housing.
  2.  
  3. Install or connect the following:

    Crankshaft timing sprocket
     
    Timing belt
     
    Lower timing cover
     
    Crankshaft pulley. Tighten the bolt to 181 ft. lbs. (245 Nm).
     
    Cooling fan bracket. Tighten the 12mm bolts to 12 ft. lbs. (16 Nm) and the 14mm bolts to 24 ft. lbs. (32 Nm).
     
    A/C compressor
     
    Center timing cover
     
    Oil cooler pipe
     
    Upper timing covers
     
    CMP sensor connector
     
    Drive belt idler pulley. Tighten the bolt to 27 ft. lbs. (37 Nm).
     
    Radiator
     
    Cooling fan and pulley. Tighten the nuts to 16 ft. lbs. (21 Nm).
     
    Accessory drive belt
     
    Air intake assembly
     
    Engine appearance cover
     
    Engine under cover
     
    Negative battery cable
     

  4.  
  5. Fill the cooling system.
  6.  
  7. Start the engine and check for leaks.
  8.  

 
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