Cloyes VC109 Engine Variable Valve Timing (VVT) Sprocket - Intake (Left)

Overview of Cloyes Variable Valve Timing (VVT) Sprocket VC109

The Cloyes Variable Valve Timing (VVT) Sprocket VC109 is engineered for precise timing control in compatible GM and other vehicle engines. Designed with durable steel construction, this sprocket supports efficient valve timing adjustments essential for optimal engine performance in models like the Chevrolet Camaro, Buick LaCrosse, and Cadillac CTS.

• Constructed from high-strength steel for durability
• Single chain row design with 40 teeth for accurate timing
• Includes mounting hardware for straightforward installation
• Two timing marks for precise alignment
• Compatible with multiple makes including Buick, Cadillac, Chevrolet, GMC, Pontiac, Saab, Saturn, and Suzuki

Product Line Details: Variable Valve Timing (VVT) Sprocket

The Cloyes Variable Valve Timing (VVT) Sprocket line focuses on components that regulate camshaft timing to improve engine efficiency and emissions. This product line is designed to meet OEM specifications, ensuring reliable performance and fitment. The VC109 sprocket is a non-adjustable gear type with a single chain row, optimized for vehicles requiring precise valve timing control without the need for manual adjustment.

Technical Specifications and Features

The VC109 sprocket features a 0.417 inch (10.59 mm) inside diameter and a 3.705 inch (94.11 mm) outside diameter, providing a robust fit for compatible engines. It has 40 teeth with a tooth thickness of 1.504 inch (10.5 mm) and a tooth width of 0.318 inch (8.1 mm), designed to maintain consistent chain engagement. The sprocket includes one mounting hole with a diameter of 1.38 inches and comes with mounting hardware to facilitate installation. It is not adjustable and does not have a keyway notch, aligning with specific engine timing requirements.

Compatible Vehicles and Applications

• Buick models such as LaCrosse and Enclave
• Cadillac ATS, CTS, SRX, and XTS
• Chevrolet Camaro, Colorado, Equinox, Impala, Malibu, Traverse
• GMC Acadia, Canyon, Terrain
• Pontiac G6, G8
• Saab 9-3, 9-4X, 9-5
• Saturn Aura, Outlook, Vue
• Suzuki Grand Vitara, XL-7

Common Issues Addressed by the VC109 VVT Sprocket

• Irregular or imprecise valve timing causing engine performance loss
• Wear or damage to original VVT sprocket teeth leading to timing chain slippage
• Engine misfires or rough idling due to timing inconsistencies
• Replacement of worn or faulty sprockets during engine rebuilds or maintenance
• Ensuring proper camshaft timing alignment for emissions compliance

Installation Notes and Tips

Installation of the Cloyes VC109 sprocket requires proper alignment using the two timing marks provided. The included mounting hardware simplifies the process, but it is important to follow manufacturer torque specifications to avoid damage. Since the sprocket is non-adjustable and lacks a keyway notch, precise positioning during installation is critical. It is recommended to consult the vehicle’s service manual for detailed timing procedures specific to the make and model.

Quality Assurance and Warranty

Cloyes manufactures the VC109 sprocket to meet or exceed OEM standards, ensuring reliable performance and durability. The steel construction provides resistance to wear and fatigue under normal operating conditions. While specific warranty details are not provided here, Cloyes products typically come with a limited warranty against defects in material and workmanship. For warranty information, refer to Cloyes documentation or authorized distributors.