Standard Ignition VVT512 Engine Variable Valve Timing (VVT) Sprocket - Intake

Overview of Standard Ignition VVT512 Engine Variable Valve Timing Sprocket

The Standard Ignition VVT512 is a precision-engineered engine variable valve timing (VVT) sprocket designed for select BMW models. This camshaft phaser sprocket ensures accurate timing control to optimize engine performance and efficiency in vehicles such as the BMW 540i, 550i, and X5.

• Durable metal gear material for long-lasting performance
• Compatible with BMW 540i, 545i, 550i, 645Ci, 650i, 740i, 740iL, 745i, 745Li, 750i, 750Li, and X5 models
• Engineered as a camshaft phaser for precise valve timing
• Single gear with 42 teeth and 4 timing marks for accurate alignment
• Inside diameter of 0.92 inches (23.368 mm) and outside diameter of 4.04 inches (102.616 mm)
• Thickness of 0.28 inches (7.112 mm) and tooth width of 0.28 inches (7.112 mm)
• Mounting hole quantity: 1, lug hole diameter 0.52 inches (13.208 mm)
• Non-adjustable design for consistent performance

Detailed Product Description

The Standard Ignition VVT512 sprocket is a critical component in the variable valve timing system of compatible BMW engines. Constructed from durable metal, this crankshaft gear type sprocket functions as a camshaft phaser, enabling precise control of valve timing to improve engine efficiency and responsiveness. The sprocket features 42 teeth and 4 timing marks, facilitating accurate installation and synchronization with the engine’s timing chain. Its dimensions, including a 0.92-inch inside diameter and 4.04-inch outside diameter, are engineered to meet OEM specifications for a secure fit and reliable operation. The single-row gear design and 0.28-inch thickness contribute to its structural integrity under demanding engine conditions.

Applications and Common Issues Addressed

• Restores proper variable valve timing function in BMW 540i, 545i, 550i, 645Ci, 650i, 740i, 740iL, 745i, 745Li, 750i, 750Li, and X5 models
• Resolves engine performance issues related to faulty camshaft phasers
• Eliminates timing chain noise caused by worn or damaged sprockets
• Prevents engine misfires and rough idling due to incorrect valve timing
• Addresses check engine light triggers related to VVT system faults

Installation Notes and Tips

Installation of the Standard Ignition VVT512 sprocket requires careful alignment of the timing marks to ensure proper valve timing. It is recommended to consult the vehicle’s service manual for torque specifications and installation procedures. Since hardware is not included, retain or replace mounting bolts as necessary. Use appropriate tools to avoid damage to the sprocket or camshaft during installation. Verify timing chain tension and inspect related components for wear to ensure optimal system performance.

Quality Assurance and Warranty

Standard Ignition manufactures the VVT512 sprocket to meet or exceed OEM standards for fit, form, and function. The metal gear construction ensures durability and resistance to wear under normal operating conditions. While specific warranty details are not provided here, Standard Ignition products typically come with a limited warranty covering defects in material and workmanship. For warranty information, refer to the product packaging or contact the manufacturer directly.