Standard Ignition VVT638 Engine Variable Valve Timing (VVT) Sprocket - Left Bank or Right Bank

Overview of Standard Ignition VVT638 Engine Variable Valve Timing Sprocket

The Standard Ignition VVT638 is a precision-engineered engine variable valve timing (VVT) sprocket designed for Hyundai and Kia vehicles, including the Accent, Rio, and Rio5 models. This crankshaft gear component ensures accurate timing control for optimal engine performance.

• Engine variable valve timing sprocket for precise timing control
• Durable metal gear construction for long-lasting reliability
• Crankshaft gear type with 24 teeth and 3 timing marks
• Inside diameter of 1.25 inches (31.75 mm) and outside diameter of 3.34 inches (84.836 mm)
• Thickness of 0.14 inches (3.556 mm) with a single mounting hole

Detailed Product Description

The Standard Ignition VVT638 sprocket is manufactured from robust metal material, ensuring durability under demanding engine conditions. It features a crankshaft gear type with 24 teeth and three timing marks to facilitate precise valve timing adjustments. The sprocket has a single mounting hole with a lug hole diameter of 0.41 inches (10.414 mm), and its dimensions include an inside diameter of 1.25 inches (31.75 mm), an outside diameter of 3.34 inches (84.836 mm), and a thickness of 0.14 inches (3.556 mm). This sprocket is non-adjustable and does not include a keyway notch, designed specifically for compatibility with Hyundai Accent, Kia Rio, and Rio5 models.

Common Applications and Issues Addressed

• Restores proper variable valve timing function in Hyundai Accent and Kia Rio engines
• Resolves engine timing errors caused by worn or damaged sprockets
• Eliminates rough idling and poor engine performance linked to faulty VVT components
• Prevents engine misfires related to incorrect valve timing
• Supports maintenance and repair of the crankshaft timing system

Installation Notes and Tips

When installing the Standard Ignition VVT638 sprocket, ensure the engine is cool and the timing marks are properly aligned to maintain accurate valve timing. Use appropriate tools to avoid damaging the sprocket or crankshaft. Since this part does not include installation hardware, verify that all necessary bolts and fasteners are available before beginning the replacement process. Follow manufacturer torque specifications for mounting to ensure secure installation.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance for Hyundai and Kia vehicles. While specific warranty details for part number VVT638 are not provided here, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.