2004 Lexus SC 430FACTORY OEM SERVICE PROCEDURE

Camshaft Timing Oil Control Valve ASSY: Replacement

  1. REMOVE V-BANK COVER 
    1. Remove the V-bank cover by removing the 2 nuts.
  2. REMOVE AIR CLEANER INLET NO.1 
  3. REMOVE INTAKE AIR CONNECTOR PIPE 
    1. Disconnect the air hose and ventilation hose No.1.
    2. Remove the intake air connector pipe by removing the bolt and hose clamp.
  4. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Disconnect the oil control valve connector.
    2. Remove the bolts and oil control valve.
  5. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Install the oil control valve with the bolt.

      Torque: 8.5 N.m (85 kgf.cm, 75 in.lbf) 

    2. Connect the oil control valve connector.
  6. INSTALL INTAKE AIR CONNECTOR PIPE 
    1. Install the intake air connector pipe with the bolt and the hose clamp.

      Torque: 

      4 N.m (40 kgf.cm, 35 in.lbf) (hose clamp) 

      5 N.m (50 kgf.cm, 44 in.lbf) (bolt) 

  7. INSTALL AIR CLEANER INLET NO.1 
  8. INSTALL V-BANK COVER 

    Torque: 5 N.m (50 kgf.cm, 44 in.lbf) 



  1. REMOVE V-BANK COVER 
    1. Remove the V-bank cover by removing the 2 nuts.
  2. REMOVE CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Disconnect the oil control valve connector.
    2. Remove the bolts and oil control valve.
  3. INSTALL CAMSHAFT TIMING OIL CONTROL VALVE ASSY 
    1. Install the oil control valve with the bolt.

      Torque: 8.5 N.m (85 kgf.cm, 75 in.lbf) 

    2. Connect the oil control valve connector.
  4. INSTALL V-BANK COVER 

    Torque: 5 N.m (50 kgf.cm, 44 in.lbf) 

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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