Standard Ignition VVT679 Engine Variable Valve Timing (VVT) Sprocket - Intake (Right)

Overview of Standard Ignition VVT679 Engine Variable Valve Timing Sprocket

The Standard Ignition VVT679 is a precision-engineered engine variable valve timing (VVT) sprocket designed specifically for the Scion FR-S. This crankshaft gear component plays a critical role in optimizing engine timing for improved performance and efficiency.

• Engine variable valve timing sprocket for Scion FR-S
• Durable metal gear material ensures long-lasting operation
• Crankshaft gear type with 36 teeth and 5 timing marks
• Inside diameter of 2.91 inches (73.914 mm) and outside diameter of 3.69 inches (93.726 mm)
• Includes a keyway notch and single mounting hole for secure fitment
• Thickness and tooth width both measure 0.16 inches (4.064 mm)

Detailed Product Description

The Standard Ignition VVT679 sprocket is manufactured from robust metal to withstand the demanding conditions within the engine valve train system. Featuring a crankshaft gear type with 36 teeth and 5 timing marks, this sprocket ensures precise timing adjustments necessary for variable valve timing systems. The sprocket’s inside diameter measures 2.91 inches (73.914 mm), while the outside diameter is 3.69 inches (93.726 mm), making it compatible with the Scion FR-S engine specifications. The inclusion of a keyway notch and a single mounting hole provides secure and accurate installation, maintaining proper alignment during engine operation. With a thickness and tooth width of 0.16 inches (4.064 mm), the sprocket balances strength and precision for reliable performance.

Applications and Common Issues Addressed

• Restores proper variable valve timing function in Scion FR-S engines
• Resolves timing chain slack or misalignment problems
• Addresses engine performance issues related to faulty VVT sprockets
• Helps eliminate rough idling or reduced fuel efficiency caused by timing errors
• Supports maintenance and repair of the engine valve train system

Installation Notes and Tips

When installing the Standard Ignition VVT679 sprocket, ensure the engine is cool and the timing chain is properly aligned with the timing marks on the sprocket. The keyway notch must be correctly positioned to maintain crankshaft synchronization. Use appropriate tools to avoid damaging the sprocket or surrounding components. Note that installation hardware is not included and should be sourced separately if needed. Follow manufacturer torque specifications for mounting to ensure secure fitment.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The VVT679 sprocket undergoes rigorous quality control to ensure precise dimensions and material integrity. While specific warranty details are not provided here, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.