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Removal

  1. A.C. MGNETO ROTOR REMOVAL ENG
  2. Measures on the removal of reasons of origin of unhappy
  3. PRIMARY SHEAVE REMOVAL
  4. Removal
  5. Removal
  6. Removal
  7. Removal

Camshaft VVT-i unit

1 The VVT-i unit is integral with the intake sprocket (see Section 6) - no dismantling is recommended.

Oil control valve

2 Unplug the wiring connector from the oil control valve at the timing chain end of the cylinder head.

3 Undo the bolt and withdraw the valve from the cylinder head (see illustration). Be prepared for oil spillage.

Oil control valve filter

4 The filter is located at the timing chain end of the cylinder head. Undo the plug and pull the filter from place (see illustration).

Inspection

Camshaft VVT-i unit

5 Testing the VVT-i unit is beyond the scope of the DIY mechanic. If the unit is faulty, the engine management ECM should store a relevant fault code. Have the system's self-diagnosis system interrogated by a Toyota dealer or suitably-equipped repairer.

Oil control valve

6 Disconnect the wiring plug from the control valve, and connect an ohmmeter to the valve terminals. The resistance should be 6.9 to 7.9Ohms. If the resistance is not as specified the valve may be defective.

Oil control valve filter

7 Clean the filter and ensure it's free from debris and damage.

Refitting

Camshaft VVT-i unit

8 As the VVT-i unit is integral with the intake


Undo the bolt and withdrawn the oil control valve from the cylinder head

camshaft sprocket, refitting is described in Section 6.

 



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