Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 25 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTING)VARIABLE VALVE TIMING SYSTEMVARIABLE VALVE TIMING ACTUATORSTOPPER PIN

2010 Mazda 5 Sport, 2.3 L, Standard

Stopper Pin

2010 Mazda 5 Sport, 2.3 L, StandardSECTION 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.

Disconnect the negative battery cable.
Remove the timing belt. See TIMING BELT under REMOVAL & INSTALLATION in appropriate article in ENGINES.
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
Courtesy of MAZDA MOTORS CORP.
Install timing belt. See TIMING BELT under REMOVAL & INSTALLATION in appropriate article in ENGINES.

RENDER: 1.0x

NO RELATED

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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.