LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2007 >> LX 470 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical (2UZ-FE) >> Timing Belt >> Removal

Timing Belt: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag activation.
  2. REMOVE ENGINE REAR UNDER COVER 
    1. Remove the 8 bolts and engine under cover.
  3. REMOVE NO. 1 ENGINE UNDER COVER 
    1. Remove the 5 bolts and engine under cover.
  4. DRAIN ENGINE COOLANT (See  COOLANT  ) 
  5. REMOVE V-BANK COVER (See  REMOVAL  ) 
  6. REMOVE AIR CLEANER HOSE ASSEMBLY (See  REMOVAL  ) 
  7. REMOVE AIR CLEANER ASSEMBLY 
    1. Disconnect the MAF meter connector.
    2. Remove the air cleaner cap and air cleaner element.
    3. Remove the 3 bolts and air cleaner case assembly.
  8. DISCONNECT NO. 1 RADIATOR HOSE (See  REMOVAL  ) 
  9. DISCONNECT NO. 2 RADIATOR HOSE (See  REMOVAL  ) 
  10. DISCONNECT NO. 1 OIL COOLER INLET TUBE (See  REMOVAL  ) 
  11. DISCONNECT NO. 1 OIL COOLER OUTLET TUBE (See  REMOVAL  ) 
  12. REMOVE DRIVE BELT (See  REMOVAL   ) 
  13. REMOVE RADIATOR ASSEMBLY (See  REMOVAL  ) 
  14. DISCONNECT VANE PUMP ASSEMBLY (See  REMOVAL  ) 
  15. REMOVE GENERATOR ASSEMBLY (See  REMOVAL  ) 
  16. DISCONNECT COMPRESSOR ASSEMBLY (See  DISASSEMBLY  ) 
  17. REMOVE NO. 3 TIMING BELT COVER SUBASSEMBLY RH 
    1. Remove the cap nut, 3 bolts, timing belt cover and gasket.
      Fig 1: Identifying Timing Belt Cover Cap Nut And Bolts
      G04061727Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE OIL COOLER PIPE 
    1. Remove the cap nut and bolt.
    2. Disconnect the oil cooler pipe from the timing belt cover.
    3. Disconnect the 3 water by-pass hoses from the oil cooler pipe.
    Fig 2: Identifying Oil Cooler Pipe
    G04061728Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. REMOVE NO. 3 TIMING BELT COVER SUBASSEMBLY LH 
    1. Disconnect the engine wire from the 2 wire clamps.
    2. Disconnect the camshaft position sensor connector.
    3. Disconnect the camshaft position sensor wire from the wire clamp on the timing belt cover.
    4. Remove the wire grommet from the timing belt cover.
      Fig 3: Identifying Timing Belt Cover Bolt
      G04061729Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Remove the 4 bolts.
    6. Disconnect the timing belt cover from the timing plate and camshaft bearing cap.
    7. Disconnect the wire clamp for the sensor from the timing belt cover.
    8. Remove the connector holder from the sensor connector.
    9. Remove the timing belt cover.
  20. REMOVE NO. 2 IDLER PULLEY SUB-ASSEMBLY 
    1. Remove the pulley bolt, cover plate and idler pulley.
    Fig 4: Identifying Pulley Bolt
    G04061730Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE NO. 2 TIMING BELT COVER SUBASSEMBLY 
    1. Remove the 2 bolts and timing belt cover.
    Fig 5: Identifying Timing Belt Cover Bolts
    G04061731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. REMOVE DRIVE BELT TENSIONER ASSEMBLY 
    1. Remove the bolt, 2 nuts and belt tensioner.
    Fig 6: Identifying Belt Tensioner Bolt And Nuts
    G04061732Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. REMOVE IDLER PULLEY ASSEMBLY 
    1. Remove the 2 bolts, 2 nuts and idler pulley.
    Fig 7: Identifying Idler Pulley Bolts And Nuts
    G04061733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. REMOVE CRANKSHAFT DAMPER SUB-ASSEMBLY 
    1. Using SST, remove the damper bolt.

      SST 09213-70011 (09213-70020), 09330-00021 

      Fig 8: Identifying Damper Bolt
      G04061734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, remove the damper.

    SST 09950-50013 (09951-05010, 09952-05010, 09953-05010, 09953-05020, 09954-05021) 

    Fig 9: Identifying Damper
    G04061735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE NO. 1 TIMING BELT COVER 
    1. Remove the 4 bolts and cover.
  26. REMOVE CRANKSHAFT POSITION SENSOR PLATE 
    Fig 10: Identifying Cover Bolts
    G04061736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE TIMING BELT 
    1. Set the No. 1 cylinder to approximately 45° BTDC/ compression.
      1. Using the crankshaft damper bolt, turn the crankshaft to align the timing marks of the crankshaft timing pulley and oil pump body.
        Fig 11: Aligning Timing Marks Of Crankshaft Timing Pulley And Oil Pump Body
        G04061737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. Check that the timing marks of the camshaft timing pulleys and timing belt plates are aligned.

        If not, turn the crankshaft 1 revolution (360°).

        Fig 12: Checking Timing Marks Of Camshaft Timing Pulleys And Timing Belt Plates Are Aligned
        G04061738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Using the crankshaft damper bolt, turn the crankshaft counterclockwise by approximately 45°.
      Fig 13: Turning Crankshaft Counterclockwise By Approximately 45°
      G04061739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE: If the timing belt is disengaged, having the crankshaft pulley at a wrong angle can cause the piston head and valve head to come into contact with each other when removing the camshaft timing pulley and camshaft, causing damage. So always set the crankshaft pulley at the correct angle.
    2. If planning to reuse the belt, check the installation marks on the timing belt.
      1. Check that there are 3 installation marks on the belt by turning the crankshaft as shown in the illustration.
        Fig 14: Checking Installation Marks On Belt By Turning Crankshaft
        G04061740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        If the installation marks have disappeared, place new installation marks on the belt before removing each part.

    3. Alternately loosen the 2 bolts. Then remove the 2 bolts, belt tensioner and dust boot.
      Fig 15: Identifying Belt Tensioner Bolts
      G04061741Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using SST, loosen the tension between the camshaft timing pulley (RH) and crankshaft timing pulley by slightly turning the camshaft timing pulley (RH) counterclockwise.

      SST 09960-10010 (09962-01000, 09963-00350) 

    5. Disconnect the belt from the No. 1 timing belt idler, and remove the belt.
    Fig 16: Loosening Tension Between Camshaft Timing Pulley (RH) And Crankshaft Timing Pulley
    G04061742Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002