Cloyes S977 Engine Timing Crankshaft Sprocket - Outer

Overview of Cloyes Engine Timing Crankshaft Sprocket S977

The Cloyes S977 Engine Timing Crankshaft Sprocket is designed for precise timing control in select Ford, Lincoln, Mazda, and Mercury vehicles. Engineered from durable metal, this sprocket ensures reliable performance in the valve train system for models such as the Ford Edge, Mazda CX-9, and Lincoln MKX.

• Constructed from high-quality metal for durability
• Single chain row design with 23 teeth for accurate timing
• Tooth width of 0.162 inches for secure chain engagement
• Inside diameter and mounting hole diameter of 1.25 inches for proper fitment
• Thickness of 0.556 inches providing structural integrity
• Includes a keyway notch for precise alignment
• One mounting hole for secure installation
• Non-adjustable design for consistent performance

Detailed Product Description and Specifications

The Cloyes S977 crankshaft sprocket is a critical component in the engine timing system, responsible for transferring rotational motion from the crankshaft to the timing chain. This sprocket features a single chain row with 23 teeth, each measuring 0.162 inches in width, ensuring optimal engagement with the timing chain. The sprocket’s metal construction offers strength and resistance to wear, essential for maintaining engine timing accuracy over time.

With an outside diameter of 2.40 inches and an inside diameter of 1.25 inches, the sprocket is designed to fit securely on the crankshaft of compatible vehicles. The inclusion of a keyway notch aids in precise alignment during installation, while the single mounting hole with a 1.25-inch inside diameter ensures a stable attachment. The sprocket’s thickness of 0.556 inches contributes to its durability under engine operating conditions.

Compatible Vehicles and Applications

This Cloyes S977 Engine Timing Crankshaft Sprocket is compatible with a range of Ford, Lincoln, Mazda, and Mercury models, including but not limited to:

• Ford Edge, Flex, Fusion, Taurus, Taurus X
• Lincoln MKS, MKT, MKX, MKZ, Sable
• Mazda CX-9

It is designed specifically for use in the valve train components of these vehicles, ensuring proper engine timing and performance.

Common Issues Addressed by the S977 Crankshaft Sprocket

• Timing chain slippage causing engine misfires or rough idling
• Wear or damage to the sprocket teeth leading to timing inaccuracies
• Improper alignment of the crankshaft timing components
• Excessive engine noise related to timing chain engagement
• Failure of original sprocket due to metal fatigue or corrosion

Installation Notes and Tips

• Ensure the engine is cool and the battery is disconnected before installation
• Align the keyway notch precisely with the crankshaft key for correct timing
• Verify the sprocket tooth count and dimensions match OEM specifications
• Use proper torque settings on the mounting bolt to avoid loosening
• Inspect the timing chain and related components for wear during replacement

Quality Assurance and Warranty Information

Cloyes manufactures the S977 crankshaft sprocket to meet strict quality standards, using durable metal materials to ensure long service life. While specific warranty details may vary, Cloyes products typically come with a limited warranty against manufacturing defects. It is recommended to consult the product documentation or supplier for exact warranty terms.