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Home >> Mazda >> 2007 >> B3000 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 32 (Engine Controls - System & Component Testing) >> Variable Valve Timing System >> Variable Valve Timing Actuator >> Stopper Pin

Stopper Pin

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mazda Protege5, 2002 Mazda Protege, 2002 Mazda Millenia, 2002 Mazda MX-5 Miata, and 2002 Mazda MPV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable.
  2. Remove the timing belt. See TIMING BELT under REMOVAL & INSTALLATION in appropriate article in ENGINES.
  3. Hold hexagonal part of the intake camshaft with an adjustable wrench to prevent camshaft from rotating. See Fig 1 . Attempt to rotate Variable Valve Timing (VVT) actuator by hand and ensure it does not move. If VVT actuator moves, stopper pin in VVT actuator is not operating. Replace VVT actuator.
    Fig 1: Checking Movement Of Variable Valve Timing Actuator
    G00143772Courtesy of MAZDA MOTORS CORP.
  4. Install timing belt. See TIMING BELT under REMOVAL & INSTALLATION in appropriate article in ENGINES.
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